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AWS DevOps Interview Questions

Gautham Digital Learning
by Gautham Digital Learning

AWS DevOps Interview Questions

1. What is AWS in DevOps?

  • AWSis Amazon’s cloud service platform that lets users carry out DevOps practices easily. The tools provided will help immensely to automate manual tasks, thereby assisting teams to manage complex environments and engineers to work efficiently with the high velocity that DevOps provides.

2. DevOps and Cloud computing: What is the need?

  • Development and Operations are considered to be one single entity in the DevOps practice. This means that any form of Agile development, alongside Cloud Computing, will give it a straight-up advantage in scaling practices and creating strategies to bring about a change in business adaptability. If the cloud is considered to be a car, then DevOps would be its wheels.

3. Why use AWS for DevOps?

  • There are numerous benefits of using AWS for DevOps. Some of them are as follows:
  • AWS is a ready-to-use service, which does not require any headroom for software and setups to get started with.
  • Be it one instance or scaling up to hundreds at a time, with AWS, the provision of computational resources is endless.
  • The pay-as-you-go policy with AWS will keep your pricing and budgets in check to ensure that you can mobilize enough and get an equal return on investment.
  • AWS brings DevOps practices closer to automation to help you build faster and achieve effective results in terms of development, deployment, and testing processes.
  • AWS services can easily be used via the command-line interface or by using SDKs and APIs, which make it highly programmable and effective.

4. What does a DevOps Engineer do?

  • A DevOps Engineeris responsible for managing the IT infrastructure of an organization based on the direct requirement of the software code in an environment that is both hybrid and multi-faceted.
  • Provisioning and designing appropriate deployment models, alongside validation and performance monitoring, are the key responsibilities of a DevOps Engineer.

5. What is CodePipeline in AWS DevOps?

  • CodePipeline is a service offered by AWS to provide continuous integration and continuous delivery services. Alongside this, it has provisions of infrastructure updates as well.
    Operations such as building, testing, and deploying after every single build become very easy with the set release model protocols that are defined by a user. CodePipeline ensures that you can reliably deliver new software updates and features rapidly.

6. What is CodeBuild in AWS DevOps?

  • AWS provides CodeBuild, which is a fully managed in-house build service, thereby helping in the compilation of source code, testing, and the production of software packages that are ready to deploy. There is no need for management, allocation, or provision to scale the build servers as this is automatically scaled.
  • Build operations occur concurrently in servers, thereby providing the biggest advantage of not having to leave any builds waiting in a queue.

7. What is CodeDeploy in AWS DevOps?

  • CodeDeploy is the service that automates the process of deploying code to any instances, be it local servers or Amazon’s EC2instances. It helps mainly in handling all of the complexity that is involved in updating the applications for release.
  • The direct advantage of CodeDeploy is its functionality that helps users rapidly release new builds and model features and avoid any sort of downtime during this process of deployment.

8. What is CodeStar in AWS DevOps?

  • CodeStaris one package that does a lot of things ranging from development to build operations to provisioning deploy methodologies for users on AWS. One single easy-to-use interface helps the users easily manage all of the activities involved in software development.
  • One of the noteworthy highlights is that it helps immensely in setting up a continuous delivery pipeline, thereby allowing developers to release code into production rapidly.

9. How can you handle continuous integration and deployment in AWS DevOps?

  • One must use AWS Developer tools to help get started with storing and versioning an application’s source code. This is followed by using the services to automatically build, test, and deploy the application to a local environment or to AWS instances.
  • It is advantageous, to start with the CodePipeline to build the continuous integration and deployment services and later on use CodeBuild and CodeDeploy as per need.

10. Name one example instance of making use of AWS DevOps effectively?

  • With AWS, users are provided with a plethora of services. Based on the requirement, these services can be put to use effectively. For example, one can use a variety of services to build an environment that automatically builds and delivers artifacts. These artifacts can later be pushed to Amazon S3 using CodePipeline. At this point, options add up and give the users lots of opportunities to deploy their artifacts. These artifacts can either be deployed by using Elastic Beanstalk or to a local environment as per the requirement.

11. What is the use of Amazon Elastic Container Service (ECS) in AWS DevOps?

  • Amazon ECS is a high-performance container management service that is highly scalable and easy to use. It provides easy integration to Docker containers, thereby allowing users to run applications easily on the EC2 instances using a managed cluster.a

12. What is AWS Lambda in AWS DevOps?

  • AWS Lambda is a computation service that lets users run their code without having to provision or manage servers explicitly. Using AWS Lambda, the users can run any piece of code for their applications or services without prior integration. It is as simple as uploading a piece of code and letting Lambda take care of everything else required to run and scale the code.

13. What is AWS CodeCommit in AWS DevOps?

  • CodeCommit is a source control service provided in AWS that helps in hosting Git repositories safely and in a highly scalable manner. Using CodeCommit, one can eliminate the requirement of setting up and maintaining a source control system and scaling its infrastructure as per need.

14. Explain Amazon EC2 in brief ?

  • Amazon EC2, or Elastic Compute Cloud as it is called, is a secure web service that strives to provide scalable computation power in the cloud. It is an integral part of AWS and is one of the most used cloud computation services out there, helping developers by making the process of Cloud Computing straightforward and easy.

15. What is Amazon S3 in AWS DevOps?

  • Amazon S3 or Simple Storage Service is an object storage service that provides users with a simple and easy-to-use interface to store data and effectively retrieve it whenever and wherever needed.

16. What is the function of Amazon RDS in AWS DevOps?

  • Amazon Relational Database Service (RDS) is a service that helps users in setting up a relational database in the AWS cloud architecture. RDS makes it easy to set up, maintain, and use the database online.

17. How is CodeBuild used to automate the release process?

  • The release process can easily be set up and configured by first setting up CodeBuild and integrating it directly with the AWS CodePipeline. This ensures that build actions can be added continuously, and thus, AWS takes care of continuous integration and continuous deployment processes.

18.Can you explain a build project in brief?

  • A build project is an entity with the primary function to integrate with CodeBuild to help provide it the definition needed. This can include a variety of information such as:
  • The location of source code
  • The appropriate build environment
  • Which build commands to run
  • The location to store the output

19. How is a build project configured in AWS DevOps?

  • A building project is configured easily using Amazon CLI (Command-line Interface). Here, users can specify the above-mentioned information, along with the computation class that is required to run the build, and more. The process is made straightforward and simple in AWS.

20. Which source repositories can be used with CodeBuild in AWS DevOps?

  • AWS CodeBuild can easily connect with AWS CodeCommit, GitHub, and AWS S3 to pull the source code that is required for the build operation.a

21. Which programming frameworks can be used with AWS CodeBuild?

  • AWS CodeBuild provides ready-made environments for Python, Ruby, Java, Android, Docker, Node.js, and Go. A custom environment can also be set up by initializing and creating a Docker image. This is then pushed to the EC2 registry or the DockerHub registry. Later, this is used to reference the image in the users’ build project.

22. Explain the build process using CodeBuild in AWS DevOps.

  • First, CodeBuild will establish a temporary container used for computing. This is done based on the defined class for the building project.
  • Second, it will load the required runtime and pull the source code to the same.
  • After this, the commands are executed and the project is configured.
  • Next, the project is uploaded, along with the generated artifacts, and put into an S3 bucket.
  • At this point, the compute container is no longer needed, so users can get rid of it.
  • In the build stage, CodeBuild will publish the logs and outputs to Amazon CloudWatchLogs for the users to monitor.

23. Can AWS CodeBuild be used with Jenkins in AWS DevOps?

  • Yes, AWS CodeBuild can integrate with Jenkinseasily to perform and run jobs in Jenkins. Build jobs are pushed to CodeBuild and executed, thereby eliminating the entire procedure involved in creating and individually controlling the worker nodes in Jenkins.

24. How can one view the previous build results in AWS CodeBuild?

  • It is easy to view the previous build results in CodeBuild. It can be done either via the console or by making use of the API. The results include the following:
  • Outcome (success/failure)
  • Build duration
  • Output artifact location
  • Output log (and the corresponding location)

25. Are there any third-party integrations that can be used with AWS CodeStar?

  • Yes, AWS CodeStar works well with Atlassian JIRA, which is a very good software development tool used by Agile teams. It can be integrated with projects seamlessly and can be managed from there.

26. Can AWS CodeStar be used to manage an existing AWS application?

  • No, AWS CodeStar can only help users in setting up new software projects on AWS. Each CodeStart project will include all of the development tools such as CodePipeline, CodeCommit, CodeBuild, and CodeDeploy.
  • Next up on this AWS interview questions for DevOps, it is vital that you understand the importance of AWS DevOps completely.

27. Why is AWS DevOps so important today?

  • With businesses coming into existence every day and the expansion of the world of the Internet, everything from entertainment to banking has been scaled to the clouds.
  • Most of the companies are using systems completely hosted on clouds, which can be used via a variety of devices. All of the processes involved in this such as logistics, communication, operations, and even automation have been scaled online. AWS DevOps is integral in helping developers transform the way they can build and deliver new software in the fastest and most effective way possible.

28.What are Microservices in AWS DevOps?

  • Microservice architectures are the design approaches taken when building a single application as a set of services. Each of these services runs using its own process structure and can communicate with every other service using a structured interface, which is both lightweight and easy to use. This communication is mostly based on HTTP and API requests.
  • Next up on this AWS interview questions for DevOps, you need to understand a bit about CoudFormation, check it out.

29.What is CloudFormation in AWS DevOps?

  • AWS CloudFormationis one of the important services that give developers and businesses a simple way to create a collection of AWS resources required and then pass it on to the required teams in a structured manner.

30.What is VPC in AWS DevOps?

  • A VPC (Virtual Private Cloud) is a cloud network that is mapped to an AWS account. It forms one among the first points in the AWS infrastructure that helps users create regions, subjects, routing tables, and even Internet gateways in the AWS accounts. Doing this will provide the users with the ability to use EC2 or RDS as per requirements

31.What is AWS IoT in AWS DevOps?

  • AWS IoT refers to a managed cloud platform that will add provisions for connected devices to interact securely and smoothly with all of the cloud applications.

32.What is EBS in AWS DevOps?

  • EBS or Elastic Block Storage is a virtual storage area network in AWS. EBS names the block-level volumes of storage, which are used in the EC2 instances. AWS EBSis highly compatible with other instances and is a reliable way of storing data.

33.What does AMI stand for?

  • AMI, also known as Amazon Machine Image, is a snapshot of the root file system. It contains all of the information needed to launch a server in the cloud. It consists of all of the templates and permissions needed to control the cloud accounts.

34.Why is a buffer used in AWS DevOps?

  • A buffer is used in AWS to sync different components that are used to handle incoming traffic. With a buffer, it becomes easier to balance between the incoming traffic rate and the usage of the pipeline, thereby ensuring unbroken packet delivery in all conditions across the cloud platform.

35.What is the biggest advantage of adopting an AWS DevOps model?

  • The one main advantage that every business can leverage is maintaining high process efficiency and ensuring to keep the costs as low as possible. With AWS DevOps, this can be achieved easily. Everything from having a quick overall of how the work culture functions to helping teams work well together, it can only be as advantageous. Bringing development and operations together, setting up a structured pipeline for them to work, and providing them with a variety of tools and services will reflect in the quality of the product created and help in serving customers better.

36.What is meant by Infrastructure as Code (IaC)?

  • This is one of the most asked questions in an AWS DevOps interview. IaC is a common DevOps practice in which the code and the software development techniques help in managing the overall infrastructure, everything from continuous integration to the version control system. The API model in the cloud further helps developers work with the entirety of the infrastructure programmatically.

37.What are some of the challenges that arise when creating a DevOps pipeline?

  • There are a number of challenges that occur with DevOps in this era of technological outburst. Most commonly, it has to do with data migration techniques and implementing new features easily. If data migration does not work, then the system can be in an unstable state, and this can lead to issues down the pipeline.
  • However, this is solved within the CI environment only by making use of a feature flag, which helps in incremental product releases. This, alongside the rollback functionality, can help in mitigating some of the challenges.

38.What is a hybrid cloud in AWS DevOps?

  • A hybrid cloud refers to a computation setting that involves the usage of a combination of private and public clouds. Hybrid clouds can be created using a VPN tunnel that is inserted between the cloud VPN and the on-premises network. Also, AWS Direct Connect has the ability to bypass the Internet and connect securely between the VPN and a data center easily.

39.How is AWS Elastic Beanstalk different from CloudFormation?

  • EBS and CloudFormation are among the important services in AWS. They are designed in a way that they can collaborate with each other easily. EBS provides an environment where applications can be deployed in the cloud.
  • This is integrated with tools from CloudFormation to help manage the lifecycle of the applications. It becomes very convenient to make use of a variety of AWS resources with this. This ensures high scalability in terms of using it for a variety of applications from legacy applications to container-based solutions.

40.What is the use of Amazon QuickSight in AWS DevOps?

  • Amazon QuickSightis a Business Analytics service in AWS that provides an easy way to build visualizations, perform analysis, and drive business insights from the results. It is a service that is fast-paced and completely cloud-powered, giving users immense opportunities to explore and use it.

41.How do Cabernets containers communicate in AWS DevOps?

  • An entity called a pod is used to map between containers in Kubernetes. One pod can contain more than one container at a time. Due to the flat network hierarchy of the pod, communication between each of these pods in the overlay network becomes straightforward.

42.Have you earned any sort of certification to boost your opportunities as an AWS DevOps Engineer?

  • Interviewers look for candidates who are serious about advancing their career options by making use of additional tools like certifications. Certificates are strong proof that you have put in all efforts to learn new skills, master them, and put them into use at the best of your capacity. List the certifications, if you have any, and do talk about them in brief, explaining what all you learned from the program and how they’ve been helpful to you so far.

43.Do you have any experience working in the same industry as ours before?

  • This is a very straightforward question. It aims to assess if you have the industry-specific skills that are needed for the current role. Even if you do not possess all of the skills, make sure to thoroughly explain how you can still make use of the skills you’ve obtained in the past to benefit the company.

44.Why are you applying for the AWS DevOps role in our company?

  • Here, the interviewer is trying to see how well you can convince them regarding your proficiency in the subject, handling all the cloud services, alongside the need for using structured DevOps methodologies and scaling to the clouds. It is always an added advantage to know the job description in detail, along with the compensation and the details of the company, thereby obtaining a complete understanding of what services, tools, and DevOps methodologies are required to work in the role successfully.

45.What is your plan after joining for this AWS DevOps role?

  • While answering this question, make sure to keep your explanation concise on how you would bring about a plan that works with the company set up and how you would implement the plan, ensuring that it works by first understanding the cloud infrastructure setup of the company, and you would also talk about how it can be made better or further improvised in the coming days with further iterations.

46.How is it beneficial to make use of version control?

  • There are numerous benefits of using version control as shown below:
  • Version control establishes an easy way to compare files, identify differences, and merge if any changes are done.
  • It creates an easy way to track the life cycle of an application build, including every stage in it such as development, production, testing, etc.
  • It brings about a good way to establish a collaborative work culture.
  • Version control ensures that every version and variant of the code is kept safe and secure.

47.What are the future trends in AWS DevOps?

  • With this question, the interviewer is trying to assess your grip on the subject and your research in the field. Make sure to state valid facts and provide respective sources to add positivity to your candidature. Also, try to explain how Cloud Computing and novel software methodologies are making a huge impact on businesses across the globe and their potential for rapid growth in the upcoming days.

48.Has your college degree helped you with Data Analysis in any way?

  • This is a question that relates to the latest program you completed in college. Do talk about the degree you have obtained, how it was useful, and how you plan on putting it into full use in the coming days, after being recruited by the company. It is advantageous if you have dealt with Cloud Computing or Software Engineering methodologies in this degree.

49.What skills should a successful AWS DevOps specialist possess?

  • This is a descriptive question that is highly dependent on how analytical your thinking skills are. There are a variety of prerequisites that one must-have, and the following are some of the important skills:
  • Working of SDLC
  • AWS Architecture
  • Database Services
  • Virtual Private Cloud
  • IAM and Monitoring
  • Configuration Management
  • Application Services, AWS Lambda, and CLI
  • CodeBuild, CodeCommit, CodePipeline, and CodeDeploy
  • If you are looking forward to becoming an expert in AWS and becoming proficient in all of the concepts related to it, make sure to check out Intellipaat’sAWS Online Training program. Here, you can learn all of the concepts thoroughly and earn a course certificate as well.
  • Do let us know in the comment section if you found these AWS DevOps Interview Questions and Answers useful.
  • 50.Name some common top DevOps tools?
  • Some top DevOps tools are Chef, Puppet, and Ansible as Configuration Management and Deployment Tools, Git as a Version Control System Tool, Jenkins as a Continuous Integration Tool, Docker as an effective Containerization Tool, and Nagios as a Continuous Monitoring Tool.

51.What is the role of a DevOps engineer?

  • DevOps engineers use DevOps practices to simplify the software development process. They build, test, and maintain the infrastructure and tools and enable efficient software development and release. Working alongside developers and IT staff, a DevOps engineer oversees code releases in their company.

52.What is the difference between DevOps and Agile?

  • Despite the significant overlap between DevOps and Agile, the main difference is that Agile focuses on seamless software development or production. In contrast, DevOps focuses on efficient and reliable software development and deployment.

53.Is DevOps a promising career for freshers?

  • Yes, DevOps is a good option for freshers who have the necessary skills. These domain skills include programming, Linux, knowledge of cloud service platforms, and CI/CD. The DevOps domain has ample opportunities for a rewarding career.

54.Does DevOps need coding?

  • Yes, but DevOps engineers have a unique set of coding responsibilities as they don’t have specialization in a single scripting language but need to know multiple languages like Python, PHP, Java, JavaScript, etc.

55.What skills are required for AWS DevOps?

  • Some crucial skills for an AWS DevOps Engineer are observability, operations, automation, continuous delivery, cloud, infrastructure as code, configuration management, etc.

56.What is the main goal of DevOps?

  • The main goal of DevOps is to optimize the flow of value from the idea to the end-user and make the delivery of value effective and efficient. DevOps also focuses on culture and cultural changes in the company in a big way.

57.What is the primary difference between agile and DevOps?

  • The essential difference between the two is that while agile is about increasing the efficiency of developers and development cycles, DevOps allows continuous integration and continuous delivery by utilizing the operations team.

58.Mention some of the core benefits of DevOps.

  • The core benefits of DevOps are as follows:
  • Technical benefits
  • Continuous software delivery
  • Less complex problems to manage
  • Early detection and faster correction of defects
  • Business benefits
  • Faster delivery of features
  • Stable operating environments
  • Improved communication and collaboration between the teams

59.How will you approach a project that needs to implement DevOps?

  • The following standard approaches can be used to implement DevOps in a specific project:
  • Stage 1
  • An assessment of the existing process and implementation for about two to three weeks to identify areas of improvement so that the team can create a road map for the implementation.
  • Stage 2
  • Create a proof of concept (PoC). Once it is accepted and approved, the team can start on the actual implementation and roll-out of the project plan.
  • Stage 3
  • The project is now ready for implementing DevOps by using version control/integration/testing/deployment/delivery and monitoring followed step by step.
  • By following the proper steps for version control, integration, testing, deployment, delivery, and monitoring, the project is now ready for DevOps implementation.

60.What is the role of configuration management in DevOps?

  • Enables management of and changes to multiple systems.
  • Standardizes resource configurations, which in turn, manage IT infrastructure.
  • It helps with the administration and management of multiple servers and maintains the integrity of the entire infrastructure.

61.How does continuous monitoring help you maintain the entire architecture of the system?

  • Continuous monitoring in DevOps is a process of detecting, identifying, and reporting any faults or threats in the entire infrastructure of the system.
  • Ensures that all services, applications, and resources are running on the servers properly.
  • Monitors the status of servers and determines if applications are working correctly or not.
  • Enables continuous audit, transaction inspection, and controlled monitoring.

62.What is the role of AWS in DevOps?

  • AWS has the following role in DevOps:
  • Flexible services – Provides ready-to-use, flexible services without the need to install or set up the software.
  • Built for scale – You can manage a single instance or scale to thousands using AWS services.
  • Automation – AWS lets you automate tasks and processes, giving you more time to innovate
  • Secure – Using AWS Identity and Access Management (IAM), you can set user permissions and policies.
  • Large partner ecosystem – AWS supports a large ecosystem of partners that integrate with and extend AWS services.

63.Name three important DevOps KPIs?

  • The three important KPIs are as follows:
  • Meantime to failure recovery – This is the average time taken to recover from a failure.
  • Deployment frequency – The frequency in which the deployment occurs.
  • Percentage of failed deployments – The number of times the deployment fails.

64.Explain the term “Infrastructure as Code” (IaC) as it relates to configuration management.

  • Writing code to manage configuration, deployment, and automatic provisioning.
  • Managing data centers with machine-readable definition files, rather than physical hardware configuration.
  • Ensuring all your servers and other infrastructure components are provisioned consistently and effortlessly.
  • Administering cloud computing environments, also known as infrastructure as a service (IaaS).

65.How is IaC implemented using AWS?

  • Start by talking about the age-old mechanisms of writing commands onto script files and testing them in a separate environment before deployment and how this approach is being replaced by IaC. Similar to the codes written for other services, with the help of AWS, IaC allows developers to write, test, and maintain infrastructure entities in a descriptive manner, using formats such as JSON or YAML. This enables easier development and faster deployment of infrastructure changes.

66.What is the Blue/Green Deployment Pattern?

  • This is a method of continuous deployment that is commonly used to reduce downtime. This is where traffic is transferred from one instance to another. In order to include a fresh version of code, we must replace the old code with a new code version.
  • The new version exists in a green environment and the old version exists in a blue environment. After making changes to the previous version, we need a new instance from the old one to execute a newer version of the instance.

67.What is Continuous Testing?

  • Continuous Testing constitutes the running of automated tests as part of the software delivery pipeline to provide instant feedback on the business risks present in the most recent release. In order to prevent problems in step-switching in the Software delivery life-cycle and to allow Development teams to receive immediate feedback, every build is continually tested in this manner. This results in significant increase in speed in a developer’s productivity as it eliminates the requirement for re-running all the tests after each update and project re-building.

68.What is Automation Testing?

  • Test automation or manual testing Automation is the process of automating a manual procedure in order to test an application or system. Automation testing entails the use of independent testing tools that allow you to develop test scripts that can be run repeatedly without the need for human interaction.

69.What are the benefits of Automation Testing?

  • Some of the advantages of Automation Testing are –
  • Helps to save money and time.
  • Unattended execution can be easily done.
  • Huge test matrices can be easily tested.
  • Parallel execution is enabled.
  • Reduced human.generated errors, which results in improved accuracy.
  • Repeated test tasks execution is supported.
  • 70.How to automate Testing in the DevOps lifecycle?
  • Developers are obliged to commit all source code changes to a shared DevOps repository.
  • Every time a change is made in the code, Jenkins-like Continuous Integration tools will grab it from this common repository and deploy it for Continuous Testing, which is done by tools like Selenium.

71.Why is Continuous Testing important for DevOps?

  • Any modification to the code may be tested immediately with Continuous Testing. This prevents concerns like quality issues and release delays that might occur whenever big-bang testing is delayed until the end of the cycle. In this way, Continuous Testing allows for high-quality and more frequent releases.

72.What is Git stash?

  • A developer working with a current branch wants to switch to another branch to work on something else, but the developer doesn’t want to commit changes to your unfinished work. The solution to this issue is Git stash. Git stash takes your modified tracked files and saves them on a stack of unfinished changes that you can reapply at any time.

73.Explain the concept of branching in Git?

  • Suppose you are working on an application, and you want to add a new feature to the app. You can create a new branch and build the new feature on that branch.
  • By default, you always work on the master branch
  • The circles on the branch represent various commits made on the branch
  • After you are done with all the changes, you can merge it with the master branch

74.How do you find a list of files that have been changed in a particular commit?

  • The command to get a list of files that have been changed in a particular commit is:
  • git diff-tree –r {commit hash}
  • Example: git diff-tree –r 87e673f21b
  • -r flag instructs the command to list individual files
  • commit hash will list all the files that were changed or added in that commit

75.What is a merge conflict in Git, and how can it be resolved?

  • A Git merge conflict happens when you have merge branches with competing for commits, and Git needs your help to decide which changes to incorporate in the final merge.

76.Explain the master-slave architecture of Jenkins?

  • Jenkins master pulls the code from the remote GitHub repository every time there is a code commit. It distributes the workload to all the Jenkins slaves. On request from the Jenkins master, the slaves carry out, builds, test, and produce test reports.

77.What is Jenkinsfile?

  • Jenkinsfile contains the definition of a Jenkins pipeline and is checked into the source control repository. It is a text file.
  • It allows code review and iteration on the pipeline.
  • It permits an audit trail for the pipeline.
  • There is a single source of truth for the pipeline, which can be viewed and edited.

78.Which of the following commands runs Jenkins from the command line?

  • java –jar Jenkins.war
  • java –war Jenkins.jar
  • java –jar Jenkins.jar
  • java –war Jenkins.war
  • The correct answer is A) java –jar Jenkins.war

79.What concepts are key aspects of the Jenkins pipeline?

  • Pipeline: User-defined model of a CD pipeline. The pipeline’s code defines the entire build process, which includes building, testing and delivering an application
  • Node: A machine that is part of the Jenkins environment and capable of executing a pipeline
  • Step: A single task that tells Jenkins what to do at a particular point in time
  • Stage: Defines a conceptually distinct subset of tasks performed through the entire pipeline (build, test, deploy stages)

80.Which file is used to define dependency in Maven?

  • build.xml
  • pom.xml
  • dependency.xml
  • Version.xml
  • The correct answer is B) pom.xml

81.How do you create a backup and copy files in Jenkins?

  • In order to create a backup of Jenkins setup, copy the JENKINS_HOME directory. You can also copy a job directory to clone or replicate a job or rename the directory.

82.How can you copy Jenkins from one server to another?

  • Move the job from one Jenkins installation to another by copying the corresponding job directory.
  • Create a copy of an existing job by making a clone of a job directory with a different name.
  • Rename an existing job by renaming a directory.

83.Name three security mechanisms Jenkins uses to authenticate users.

  • Jenkins uses an internal database to store user data and credentials.
  • Jenkins can use the Lightweight Directory Access Protocol (LDAP) server to authenticate users.
  • Jenkins can be configured to employ the authentication mechanism that the deployed application server uses.

84.How is a custom build of a core plugin deployed?

  • Steps to deploy a custom build of a core plugin:
  • Copy the .hpi file to $JENKINS_HOME/plugins
  • Remove the plugin’s development directory
  • Create an empty file called <plugin>.hpi.pinned
  • Restart Jenkins and use your custom build of a core plugin

85.What are the ways in which a build can be scheduled/run in Jenkins?

  • By source code management commits.
  • After completion of other builds.
  • Scheduled to run at a specified time.
  • Manual build requests.

86.Explain how you can set up a Jenkins job?

  • To create a Jenkins Job, we go to the top page of Jenkins, choose the New Job option and then select Build a free-style software project.
  • The elements of this freestyle job are –
  • Optional triggers for controlling when Jenkins builds.
  • Optional steps for gathering data from the build, like collecting javadoc, testing results and/or archiving artifacts.
  • A build script (ant, maven, shell script, batch file, etc.) that actually does the work.
  • Optional source code management system (SCM), like Subversion or CVS.

87.Explain how you can set up a Jenkins job?

  • To create a Jenkins Job, we go to the top page of Jenkins, choose the New Job option and then select Build a free-style software project.
  • The elements of this freestyle job are –
  • Optional triggers for controlling when Jenkins builds.
  • Optional steps for gathering data from the build, like collecting javadoc, testing results and/or archiving artifacts.
  • A build script (ant, maven, shell script, batch file, etc.) that actually does the work.
  • Optional source code management system (SCM), like Subversion or CVS.

88. What is DevOps Tooling by AWS?

  • # AWS provides services that help you practice DevOps at your company and that are built first for use with AWS. These tools automate manual tasks, help teams manage complex environments at scale, and keep engineers in control of the high velocity that is enabled by DevOps.

89.How do you handle Continuous Integration and Continuous Delivery in AWS Devops?

  • The AWS Developer Tools help you securely store and version your application’s source code and automatically build, test, and deploy your application to AWS or your on-premises environment.
  • Start with AWS CodePipeline to build a continuous integration or continuous delivery workflow that uses AWS CodeBuild, AWS CodeDeploy, and other tools, or use each service separately.

90.What is AWS CodePipeline in AWS Devops?

  • AWS CodePipeline is a continuous integration and continuous delivery service for fast and reliable application and infrastructure updates. CodePipeline builds, tests, and deploys your code every time there is a code change, based on the release process models you define. This enables you to rapidly and reliably deliver features and updates.

91.What is AWS CodeBuild in AWS Devops?

  • AWS CodeBuild is a fully managed build service that compiles source code, runs tests, and produces software packages that are ready to deploy. With CodeBuild, you don’t need to provision, manage, and scale your own build servers. CodeBuild scales continuously and processes multiple builds concurrently, so your builds are not left waiting in a queue.

92.What is AWS CodeDeploy in AWS Devops?

  • AWS CodeDeploy automates code deployments to any instance, including Amazon EC2 instances and on-premises servers. AWS CodeDeploy makes it easier for you to rapidly release new features, helps you avoid downtime during application deployment, and handles the complexity of updating your applications.

93.What is AWS CodeStar in AWS Devops?

  • AWS CodeStar enables you to quickly develop, build, and deploy applications on AWS. AWS CodeStar provides a unified user interface, enabling you to easily manage your software development activities in one place. With AWS CodeStar, you can set up your entire continuous delivery toolchain in minutes, allowing you to start releasing code faster.

94.How Instacart uses AWS Devops?

  • Instacart uses AWS Code Deploy to automate deployments for all of its front-end and back-end services. Using AWS Code Deploy has enabled Instacart’s developers to focus on their product and worry less about deployment operations.

95.How lululemon athleticauses AWS Devops?

  • lululemon athletica uses a variety of AWS services to engineer a fully automated, continuous integration and delivery system. lululemon deploys artifacts distributed via Amazon S3 using AWS CodePipeline. From this stage, the artifacts are deployed to AWS Elastic Beanstalk.

96.What is Amazon Elastic Container Service in AWS Devops?

  • Amazon Elastic Container Service (ECS) is a highly scalable, high performance container management service that supports Docker containers and allows you to easily run applications on a managed cluster of Amazon EC2 instances.

97.What is AWS Lambda in AWS Devops?

  • AWS Lambda lets you run code without provisioning or managing servers. With Lambda, you can run code for virtually any type of application or backend service – all with zero administration. Just upload your code and Lambda takes care of everything required to run and scale your code with high availability.

98.What areAWS Developer Tools?

  • The AWS Developer Tools is a set of services designed to enable developers and IT operations professionals practicing DevOps to rapidly and safely deliver software.
  • Together, these services help you securely store and version control your application’s source code and automatically build, test, and deploy your application to AWS or your on-premises environment. You can use AWS CodePipeline to orchestrate an end-to-end software release workflow using these services and third-party tools or integrate each service independently with your existing tools.

99.What is CodeCommit in AWS Devops?

  • AWS CodeCommit is a fully-managed source control service that makes it easy for companies to host secure and highly scalable private Git repositories. CodeCommit eliminates the need to operate your own source control system or worry about scaling its infrastructure. You can use CodeCommit to securely store anything from source code to binaries, and it works seamlessly with your existing Git tools.

100.What is Amazon S3 in AWS Devops?

  • Amazon Simple Storage Service (Amazon S3) is object storage with a simple web service interface to store and retrieve any amount of data from anywhere on the web.

101.What is Amazon RDS in AWS Devops?

  • Amazon Relational Database Service (Amazon RDS) makes it easy to set up, operate, and scale a relational database in the cloud.

102.How do you configure a buildproject in AWS Devops?

  • A build project can be configured through the console or the AWS CLI. You specify the source repository location, the runtime environment, the build commands, the IAM role assumed by the container, and the compute class required to run the build. Optionally, you can specify build commands in a buildspec.yml file.

103.Which source repositories does CodeBuild support in AWS Devops?

  • CodeBuild can connect to AWS CodeCommit, S3, and GitHub to pull source code for builds.

104.Which programming frameworks does CodeBuild support in AWS Devops?

  • CodeBuild provides preconfigured environments for supported versions of Java, Ruby, Python, Go, Node.js, Android, and Docker. You can also customize your own environment by creating a Docker image and uploading it to the Amazon EC2 Container Registry or the Docker Hub registry. You can then reference this custom image in your build project.

105.What happens when a build is run in CodeBuild in AWS Devops?

  • CodeBuild will create a temporary compute container of the class defined in the build project, load it with the specified runtime environment, download the source code, execute the commands configured in the project, upload the generated artifact to an S3 bucket, and then destroy the compute container. During the build, CodeBuild will stream the build output to the service console and Amazon CloudWatch Logs.

106.What happens when a build is run in CodeBuild in AWS Devops?

  • CodeBuild will create a temporary compute container of the class defined in the build project, load it with the specified runtime environment, download the source code, execute the commands configured in the project, upload the generated artifact to an S3 bucket, and then destroy the compute container. During the build, CodeBuild will stream the build output to the service console and Amazon CloudWatch Logs.

107.How can you use CodeBuild with Jenkins in AWS Devops?

  • Yes. The CodeBuild Plugin for Jenkins can be used to integrate CodeBuild into Jenkins jobs. The build jobs are sent to CodeBuild, eliminating the need for provisioning and managing the Jenkins worker nodes.

108.How can you view past build results in AWS CodeBuild?

  • You can access your past build results through the console or the API. The results include outcome (success or failure), build duration, output artifact location, and log location.

109.What types of applications can you build with AWS CodeStar?

  • CodeStar can be used for building web applications, web services and more. The applications run on Amazon EC2, AWS Elastic Beanstalk or AWS Lambda. Project templates are available in several different programming languages including Java, Node.js (Javascript), PHP, Python and Ruby.

110.What types of applications can you build with AWS CodeStar?

  • CodeStar can be used for building web applications, web services and more. The applications run on Amazon EC2, AWS Elastic Beanstalk or AWS Lambda. Project templates are available in several different programming languages including Java, Node.js (Javascript), PHP, Python and Ruby.

111.How do you add, remove or change users for my AWS CodeStar projects?

  • You can add, change or remove users for your CodeStar project through the “Team” section of the CodeStar console. You can choose to grant the users Owner, Contributor or Viewer permissions. You can also remove users or change their roles at any time.

112.How do AWS CodeStar users relate to IAM users?

  • CodeStar users are IAM users that are managed by CodeStar to provide pre-built, role-based access policies across your development environment; Because CodeStar users are built on IAM, you still get the administrative benefits of IAM. For example, if you add an existing IAM user to a CodeStar project, the existing global account policies in IAM are still enforced.

113.Can I work on my AWS CodeStar projects directly from an IDE?

  • Yes. By installing the AWS Toolkit for Eclipse or Visual Studio you gain the ability to easily configure your local development environment to work with CodeStar Projects; Once installed, developers can then select from a list of available CodeStar projects and have their development tooling automatically configured to clone and checkout their project’s source code, all from within their IDE.

114.How do you configure my project dashboard?

  • Project dashboards can be configured to show the tiles you want, where you want them; To add or remove tiles, click on the “Tiles” drop‑down on your project dashboard. To change the layout of your project dashboard, drag the tile to your desired position.

115.Can we use AWS CodeStar to help manage my existing AWS applications?

  • No. AWS CodeStar helps customers quickly start new software projects on AWS. Each CodeStar project includes development tools, including AWS CodePipeline, AWS CodeCommit, AWS CodeBuild and AWS CodeDeploy, that can be used on their own and with existing AWS applications.

116.What is Continuous Integration in AWS Devops?

  • Continuous integration is a software development practice where developers regularly merge their code changes into a central repository, after which automated builds and tests are run. The key goals of continuous integration are to find and address bugs quicker, improve software quality, and reduce the time it takes to validate and release new software updates.

117.What is Continuous Delivery in AWs Devops?

  • Continuous delivery is a software development practice where code changes are automatically built, tested, and prepared for a release to production.
  • It expands upon continuous integration by deploying all code changes to a testing environment and/or a production environment after the build stage. When continuous delivery is implemented properly, developers will always have a deployment-ready build artifact that has passed through a standardized test process.

118.What are Microservices in AWS Devops?

  • The microservices architecture is a design approach to build a single application as a set of small services. Each service runs in its own process and communicates with other services through a well-defined interface using a lightweight mechanism, typically an HTTP-based application programming interface (API).

119.What is Infrastructure as Code in AWS Devops?

  • Infrastructure as code is a practice in which infrastructure is provisioned and managed using code and software development techniques, such as version control and continuous integration.
  • The cloud’s API-driven model enables developers and system administrators to interact with infrastructure programmatically, and at scale, instead of needing to manually set up and configure resources.
  • Thus, engineers can interface with infrastructure using code-based tools and treat infrastructure in a manner similar to how they treat application code. Because they are defined by code, infrastructure and servers can quickly be deployed using standardized patterns, updated with the latest patches and versions, or duplicated in repeatable ways.

120.What is AWS CloudFormation in AWS Devops?

  • AWS CloudFormation is a service that gives developers and businesses an easy way to create a collection of related AWS resources and provision them in an orderly and predictable fashion.

121.How is AWS CloudFormation different from AWS Elastic Beanstalk?

  • These services are designed to complement each other. AWS Elastic Beanstalk provides an environment to easily deploy and run applications in the cloud.
  • It is integrated with developer tools and provides a one-stop experience for you to manage the lifecycle of your applications. AWS CloudFormation is a convenient provisioning mechanism for a broad range of AWS resources.
  • It supports the infrastructure needs of many different types of applications such as existing enterprise applications, legacy applications, applications built using a variety of AWS resources and container-based solutions (including those built using AWS Elastic Beanstalk).

122.List Out the Various Deployment Models For Cloud?

  • Private Cloud
  • Public Cloud
  • Hybrid Clouds

123.What is the use of Buffer In Amazon Web Services?

  • It is used to make the system more resilient to bursts of traffic and to load by synchronizing various components. Those  components always receive and process the requests in an unbalanced way. It maintains the balance between various components and makes them work at the same speed to offer faster services.

124.Make a comparison Between Scalability And Elasticity?

  • The Scalability is the ability of a system that increases the workload on its current hardware resources used to handle the variability in demand. Elasticity is the ability of a system, which helps to increase the workload on its present and additional hardware resources, and used to enable the businesses that meet demand without investing in infrastructure up-front.

125.Explain what elastic Block Storage is?

  • Elastic block storage is a virtualized SAN or the storage area network. Amazon EBS offers the persistence block level storage volumes for use with EC2 instances. Its volumes are highly available and reliable storage volumes, which may be attached for any running instance that is in the same Availability Zone.

126.Define Aws Lambda ?

  • It lets us run the code without any help from servers provisioning and managing. By using Lambda, we may virtually run the code for any kind of application or for any  service of backend, which has zero administration. It uploads our code and It maintains everything which is needed to run and scale our highly available code.

127.What is the use of Instacart in Aws Devops?

  • The use Instacart AWS Code Deploy to automate the deployments for all of its services like front-end and back-end. With the help of AWS Code Deploy, we can enable Instacart developers which helps to focus on their product and worry less about the deployment of the operations.

128.Define the Amazon Machine Image?

  • It is One of the most frequently asked AWS DevOps Interview questions, which interviewers ask and they relate to Amazon Machine Image. It is basically a snapshot of the root filesystem and provides information that is necessary to launch an ‘instance.’  Its instance is a virtual server in the cloud computing environment.

129.What is the process of building a hybrid cloud?

  • In numerous ways to build a hybrid cloud, a standard way of building a hybrid cloud is to design a Virtual Private Network tunnel between the cloud VPN and the network on premise. The Direct Connect of AWS may bypass the public internet and be used to establish a secure connection between the VPN and the private data center.

130.Explain how we will handle revision control?

  • In order to handle the revision control, it is essential to first post on GitHub or SourceForge. It will ensure that it can be seen by everyone. Except from this, we may also post the checklist from the clear last revision. This will make sure that if any unresolved cases exist, they can be resolved simply.

131.Make a comparison between classic automation and orchestration?

  • The Classic automation encompasses the automation of software installation as well as system configuration such as user creation and security baselining. The orchestration process focuses on the connection as well as the interaction of existing and providing services.

132.Describe Code Commit ?

  • It refers to a ‘fully managed’ service of source control, which makes it simple for organizations for secured hosts as well as private Git repositories which are extremely scalable. It may eliminate the need for operating one’s control system of its own source. Except  this, we do not have to worry about the scaling of the infrastructure. We may use it for securely storing anything they are like the source code and the binaries.

133.Mention some of the important advantages of AWS Code Build?

  • The AWS Code Build in AWS DevOps, which refers to a completely managed service of built, it helps to run the tests and assembles source code. Instead of this, this has the potential to generate software packages which may be readily deployed. When users have AWS Code Build, they are not required for the provision, to manage, and also to scale their servers of build.

134.Briefly explain Code Commit in AWS DevOps?

  • The Code Commit may eliminate the need of operating one’s own source control system. Except  this, we do not have to worry about the scaling of the infrastructure. We may use it for securely storing anything they are like the source code, the binaries, etc.

135.What is your idea about the AWS CloudFormation in AWS DevOps?

  • The AWS CloudFormation in AWS DevOps refers to a service, which offers a simpler and easier way for businesses and developers. It is able to build a collection of related AWS resources. In addition to this the businesses and developers are able to provide these elements in a predictable and orderly manner.

136.Describe the Microservices in AWS DevOps?

  • The architecture of Microservices is a design approach that is used for building a single application as a series of small services. Each and Every service runs in its own process. Instead of this, it communicates with other services by using a well-established interface utilizing a lightweight mechanism. Regularly, an HTTP-based application programming interface is used.

137.How can IaC be implemented by using AWS?

  • The Infrastructure as Code has brought about the changes transformational, in the DevOps arena. This basically enables developers to write, test as well as to maintain the infrastructure entities. That is basically done in a descriptive manner, which is the use of formats like YAML, JSON is common. IAC implementation provides simple development along with faster deployment of the infrastructure alterations.

138.Describe the concept “Infrastructure as Code”?

  • The ‘Infrastructure as Code’ is a practice where code and software development techniques are used to help in provisioning and managing the infrastructure. The Common examples contain the Continuous Integration and Version Control. Its API-model of the cloud enables system administrators and developers to interact with the infrastructure programmatically.

139.Explain VPC Peering?

  • The VPC Peering connection, that refers to a network connection between two Virtual Private Clouds. This is basically used  to route the traffic between them by making the use of private IP addresses. Its instances in VPCs are able to interact with one another when they exist within the same network. The connection of VPC Peering may help users by facilitating data transfer

140.Define Continuous Delivery in AWS DevOps?

  • Continuous Delivery is a practice of software development, where codes are built automatically. In addition, the testing and the preparation of these codes are done for their release to production. When addressing AWS DevOps Interview questions, they revolve around CD, this is essential to remember that it revolves around CI. The CD expands upon the CI concept by deploying all the code changes to testing the production environment, it is done after the build stage.

141.Mention the core components of AWS DevOps?

  • Important components of AWS DevOps are like
  • Continuous Testing
  • Continuous Integration
  • Continuous Feedback
  • Continuous Development
  • Continuous Deployment
  • Continuous Monitoring
  • Continuous Monitoring

142.Describe a build project?

  • This is used to describe the process of how to run a build in a Code Build, that includes information like how to identify  the right place for source code, how to use the environment of build, which build commands used to run it, and where the output of build is stored. The build environment is nothing but the combination of the operating system, runtime of the programming language, and the tools, which is helped to run a build by CodeBuild.

143.What is the process to configure a build project ?

  • It may be configured by using console or through the CLI of AWS. We can modify the repository location of the source, and the environment of runtime , commands of the build, and also the role of IAM, which is created through the container, and the class of compute needed for the build to run. It is optional that we can identify the commands of build with the help of buildspec.yml file.

144.What are the programming frameworks that CodeBuild supports in DevOps?

  • It offers the preconfigured environments that are helped for assisted versions, they are like Java, Python, Ruby, Go, Android,Node.js and Docker. We may also customize our  environment through designing an image of Docker and then uploading it to the EC2 of Amazon Container Registry and the hub registry of Docker. Then We may then refer to that image of custom  in the project of build.

145.When a build is run in CodeBuild of Devops, what happens?

  • It is used to design a provisional  container of the compute class, that is defined in a project of built, and it is helped to load it through the use of environment of specified runtime , the source code download, which is used to the commands execution that are projects configuration, also to uploading of the artifact which is generated for an S3 bucket, and then it is also used to destroy the  container of the compute. While the build, CodeBuild streams, the output of the build for the service console and also the CloudWatch Logs of Amazon.

146.Explain how to use CodeBuild of aws devops with Jenkins?

  • The plugin of CodeBuild for Jenkins may help with the codebuilt integration  for Jenkins jobs of  Jenkins. jobs of the built are delivered to the CodeBuild, and also for the provisioning need elimination and for Jenkins worker nodes management.

147.List out some kinds of applications and how we can build by using AWS CodeStar?

  • The CodeStar may be helpful for creating the web applications, services, etc. those web applications  run on EC2 of Amazon, and Beanstalk of aws elastic or the AWS Lambda.  templates of projects are available in various programming languages such as  Java, Node.js, PHP, Ruby, Python etc.

148.In what way the AWS CodeStar users relate to IAM users?

  • The users of CodeStar are IAM customers, the CodeStar managed it to offer access policies which are role based and pre-built across our environment of development. As the users of CodeStar are built on it, we may even get the advantages of the administrative IAM. When we involve an existing IAM customer to the project of a CodeStar, and the global account policies exist in IAM which are enforced.

149.Can we work on my AWS projects of CodeStar directly from an IDE?

  • Yes. Through downloading the AWS Toolkit, which is used by Visual Studio, it gave us the ability to simply configure the environment of our local development and work with the  Projects of codestar. When we installed, developers may then choose it from the available list of   projects related to CodeStar and they maintain their automatic tooling of development, within its IDE the colne is configured and source code of their projects are checked out.

150.How to add, remove or change customers for our AWS CodeStar projects?

  • We can add, change or remove customers for projects of our CodeStar through the “Team” section of the CodeStar console. We may select to grant the users Owner, Contributor or  permissions of the viewer, we may also remove users or change their roles at any time.

151.Describe AWS CloudFormation in AWS Devops?

  • The AWS CloudFormation is a kind of service which provides developers and businesses a simple way to design a collection of related AWS resources and provision them in an orderly and predictable fashion.

152.Define the AWS DevOps Continuous Integration?

  • The aws continuous integration is the practice of a software development, where the  developers generally unit their changes of code into the central repository, after which the automated builds and tests are run. Important goals of continuous integration, helped to  find and address the bugs quicker, which helped to develop the software quality, and to decrease the time it takes to validate and release new software updates.

153.Explain Amazon QuickSight in AWS Devops?

  • It is a fast and cloud powered business analytics service, which makes it simple to build the visualizations, to perform the analysis of ad-hoc, and to quickly get business insights from our data.

154.Describe the role of a DevOps engineer?

  • There’s no formal career track for a DevOps engineer, they either be developers, they get interested in deployment and the operations of network, or sysadmins who have a goal of scripting and coding, which moves into the development side where they may develop the planning of test and deployment.

155.Explain DevOps Tooling by AWS?

  • It provides services, which help us to use DevOps practices at our company and that are built first for use with AWS. tools of automation, that are used for manual tasks, which help teams to manage complex environments at scale, and keep engineers in control of the high velocity that is enabled by DevOps.

156.What Is Aws Code Pipeline In Aws Devops?

  • AWS Code Pipeline is a continuous integration and non-stop delivery carrier for immediate and reliable utility and infrastructure updates. Code Pipeline builds, checks, and deploys your code every time there’s a code change, primarily based on the discharge method fashions you define. This enables you to hastily and reliably supply functions and updates.

157.What Is Aws Code Build In Aws Devops?

  • AWS Code Build is a totally controlled construct service that compiles source code, runs exams, and produces software packages which can be equipped to install. With Code Build, you don’t want to provision, manage, and scale your very own build servers. Code Build scales constantly and processes a couple of builds concurrently, so your builds aren’t left ready in a queue.

158.What Is Aws Code Deploy In Aws Devops?

  • AWS Code Deploy automates code deployments to any instance, which include Amazon EC2 instances and on-premises servers. AWS Code Deploy makes it easier so that you can unexpectedly release new capabilities, enables you avoid downtime in the course of application deployment, and handles the complexity of updating your packages.

159.What Is Aws Code Star In Aws Devops?

  • AWS Code Star permits you to quick develop, build, and installation packages on AWS. AWS Code Star offers a unified user interface, allowing you to effortlessly manipulate your software program improvement activities in a single location. With AWS Code Star, you could installation your complete non-stop transport tool chain in minutes, permitting you to begin releasing code quicker.

160.How Instacart Uses Aws Devops?

  • Instacart uses AWS Code Deploy to automate deployments for all of its the front-cease and lower back-stop services. Using AWS Code Deploy has enabled Instacart developers to focus on their product and fear much less about deployment operations.

161.How Lulu Lemon Athletic Uses Aws Devops?

  • Lulu lemon athletic uses a spread of AWS offerings to engineer a fully computerized, continuous integration and shipping gadget. Lulu lemon deploys artifacts distributed through Amazon S3 the usage of AWS Code Pipeline. From this level, the artifacts are deployed to AWS Elastic Beanstalk.

162.What Is Amazon Elastic Container Service In Aws Devops?

  • Amazon Elastic Container Service (ECS) is a notably scalable, excessive overall performance container control provider that helps Docker packing containers and lets in you to easily run applications on a controlled cluster of Amazon EC2 instances.

163.What Is Aws Lambda In Aws Devops?

  • AWS Lambda helps you to run code without provisioning or coping with servers. With Lambda, you can run code for really any sort of application or backend provider – all with zero management. Just add your code and Lambda takes care of the whole lot required to run and scale your code with high availability.

164.What Are Aws Developer Tools?

  • The AWS Developer Tools is a hard and fast of offerings designed to allow developers and IT operations specialists practicing DevOps to unexpectedly and safely supply software program.
  • Together, these services help you securely save and model manipulate your software’s source code and automatically construct, take a look at, and install your software to AWS or your on-premises surroundings. You can use AWS Code Pipeline to orchestrate an quit-to-quit software release workflow using those services and 0.33-birthday celebration equipment or integrate every service independently along with your existing equipment.

165.What Is Code Commit In Aws Devops?

  • AWS Code Commit is a completely-controlled source manipulate provider that makes it easy for businesses to host comfy and highly scalable personal Git repositories. Code Commit removes the need to operate your own supply manipulate system or fear about scaling its infrastructure. You can use Code Commit to soundly save some thing from source code to binaries, and it works seamlessly along with your present Git tools.

166.What Are The Benefits Of Aws Code Build In Aws Devops?

  • AWS Code Build is a fully controlled build carrier that compiles supply code, runs exams, and produces software programs which are equipped to installation. With Code Build, you don’t want to provision, manage, and scale your own construct servers.
  • Code Build scales constantly and procedures more than one builds simultaneously, so your builds are not left waiting in a queue. You can get started fast with the aid of using prepackaged construct environments, or you could create custom construct environments that use your personal construct equipment. With Code Build, you’re charged by means of the minute for the laptop resources you operate.

167.In DevOps, what role does configuration management play?

  • Configuration management performs the following roles in DevOps-
  • Managing and modifying existing systems.
  • Streamlines resource configurations, allowing IT infrastructure to be managed efficiently.
  • Helps in the governance and administration of several systems while also ensuring the infrastructure’s integrity.

168.What do you understand by a hybrid cloud in AWS DevOps?

  • A hybrid cloud is a computing environment in which private and public clouds function parallelly. A VPN tunnel between the cloud VPN and the on-premises connection helps build hybrid clouds. AWS Direct Connect can connect securely between a VPN and a data center without passing through the Internet.

169.Briefly describe Amazon EC2.

  • Amazon EC2, also known as Elastic Compute Cloud, is a secure web service that aims to provide scalable cloud computing capability. It is a key feature of AWS, and one of the most widely utilized cloud compute services, assisting developers by making the Cloud Computing process simple and uncomplicated.

170. What role does buffer play in Amazon Web Services?

  • The buffer is responsible for handling incoming traffic while seamlessly integrating the various components. The components are liable to acquire and process requests in an insecure manner. A buffer establishes a balance that unites multiple devices and generates the effort simultaneously, allowing for faster service delivery. It’s simple to balance the incoming traffic rate and pipeline usage using a buffer, ensuring consistent packet delivery across the cloud service in all circumstances.

171.What do you understand by microservices in AWS DevOps?

  • Microservices are design techniques for constructing a single application from various services. Each of these services will have its process structure and will interact with each other over a structured interface that is both minimal and simple to use. These services communicate mostly through HTTP and API queries.

172.What is meant by AWS CloudFormation in AWS DevOps?

  • In AWS DevOps, AWS CloudFormation is a set of services that make it easier for businesses and developers to utilize AWS resources. It compiles a list of AWS resources that are comparable. Furthermore, it allows organizations and developers to deliver these elements systematically and in an organized manner.

173. What is CodeBuild in AWS DevOps?

  • AWS CodeBuild compiles source code, runs tests, and generates deployment-ready software packages. You can set up, monitor, and expand your build servers using CodeBuild. Build activities occur parallel on servers, eliminating the need for the builds to wait.

174.Name a few programming frameworks that CodeBuild supports in AWS DevOps?

  • Pre-configured environments for Java, Android, Python, Node.js, Ruby, Go, and Docker are available from CodeBuild. Additionally, you can modify the environment by developing a Docker image and publishing it to the Amazon EC2 Container Registry or, sometimes, to the Docker Hub registry. You can use this custom image as a template in your build project.

175.What is AMI? How does it work?

  • AMI is an acronym for Amazon Machine Image. It is a replica of the root filesystem. AWS Amazon Machine Image provides the information needed to start an “instance” (virtual server in a cloud-computing environment). An AMI contains a root volume template, block device mapping, and activation rights for the instance.

176.What does CodeDeploy mean in AWS DevOps?

  • CodeDeploy is a tool that automates deploying code to any instances, including local servers and Amazon EC2 instances. It mostly helps in navigating the complexities of upgrading applications for deployment. The functionality of CodeDeploy allows users to quickly release new versions and model features while avoiding any disruption during the workflow.

177.In AWS DevOps, how do you set up a build project?

  • The console or the AWS CLI helps to configure a build project. You need to define the build commands, runtime environment, source repository location, IAM role taken by the container, and computing class necessary to perform the build. Alternatively, a “buildspec.yml” file provides build commands.

178.What is the most effective method for making content reusable and redistributable?

  • In Ansible, you can reuse or redistribute content in three ways:
  • In a playbook, roles help you to manage tasks. They’re simple to share using Anisole Galaxy.
  • To add a submodule or another file to a playbook, use the “include” command. This indicates that you can use a single piece of code in several playbooks.
  • “import” is a better version of “include,” as it assures that you insert a file only once.  This is useful for continually running a line.

179.What are the various stages involved in DevOps?

  • The following are the stages involved in the DevOps lifecycle:
  • Planning- The first step is to prepare a plan for the application you develop. It’s always a great option to have a broad understanding of the development process.
  • Coding- The application is programmed to meet the needs of the end-user.
  • Building- Assemble the app by combining the numerous codes created in the previous steps.
  • Testing- The most important step in the application development process is testing. One needs to test the application and rebuild it if needed.
  • Integration- Several different programmers’ codes are combined to form a single code.
  • Deployment- The code is placed in a cloud environment to be used later. Any new alterations are verified to avoid disruption of the operation of a high-traffic website.
  • Operation-  If necessary, certain operations are done on the code.
  • Monitoring- The performance of the application is taken into account. Changes take place to fit the needs of the end-user.

180.What is meant by configuration management?

  • Configuration Management comprises several tools that help with automated delivery and infrastructure management. It mostly involves keeping the server ready for application deployment once complete. The settings associated with network setup and the installation of system packages are two common instances of configuration management. The system administrator or operations must verify that all systems are equivalent, and this happens by provisioning the systems.

181.What is the most significant advantage of using an AWS DevOps model?

  • Maintaining high process efficiency while keeping costs as low as feasible is the one major advantage that any business can use. This is easy to achieve with AWS DevOps. It is beneficial in everything from getting a brief overview of how the workplace operates to assisting teams in working successfully together. Bringing production and operations together, establishing a structured pipeline for them to engage in, and equipping them with various tools and services can improve the quality of products developed and help in efficiently serving customers.

182.What is the Blue/Green Deployment Pattern, and how does it work?

  • It is a popular way of continuous deployment for reducing downtime. It involves sending data from one instance to the next. You must replace the old code with a new code version to use a new version of the code. The new version is in a green setting, while the old one resides in a blue one. After implementing changes to the existing version, you’ll have to create a new instance from the old one to run the newer version.

183.How are Amazon Web Services and DevOps related?

  • The Amazon Web Services provides a set of services that helps the user practice DevOps at his/her company and those service which are built first for use with AWS. These tools automate manual tasks, help teams manage complex environments at scale, and keep engineers in control of the high velocity that is enabled by DevOps.

184.What is the importance of buffer in AWS?

  • A buffer helps to integrate and synchronize various components in AWS and helps to maintain equilibrium by linking multiple apparatus to deliver quick services at a uniform rate.

185.What role does a DevOps engineer play in any organization?

  • Key Pairs are used to connect to the virtual machines. The secure login credentials used to connect to virtual machines are known as Key pairs. Key-pairs in AWS is the commonly asked AWS interview question.

186.What do you know about AWS CodeBuild in AWS DevOps?

  • AWS CodeBuild is a fully managed build service that compiles source code, runs tests, and produces software packages that are ready to deploy. With CodeBuild, the user doesn’t need to provision, manage, and scale user-built or independent build servers. CodeBuild scales continuously and processes multiple builds concurrently, so that user builds are not left waiting in a queue.

187.What is an AMI?

  • Amazon Machine Image contains various software configurations, block device mapping for allocating volumes to the virtual machine and launch permissions.

188.What is an EIP?

  • An elastic IP address is useful for dynamic cloud computing where we can stop and restart the instances multiple times.
  • 189.How does the Instacart make efficient use of AWS DevOps?
  • Multi-AZ RDS is helpful to make a replica of the production database to be available in other availability zones. They come handy in case of disaster recovery and primary database shutdown, to have a complete set of database as a backup.

190.What is AWS IoT in AWS DevOps?

  • The AWS IoT is a managed cloud platform that lets connected devices easily and securely interact with cloud applications and other devices.

191.How will you access the data on EBS in AWS?

  • Elastic Block Storage provides highly functional block-level storage that can be connected to any EC2 instance and accessed easily.
  • This question is basically asked to the freshers to test their understanding on Elastic Block Storage in AWS.

192.How does Elastic Beanstalk update?

  • Elastic Beanstalk creates a replica of an instance and routes the traffic to the duplicate instance before updating an instance. In case the update fails, it will roll back to the original instance providing a hassle-free user experience.

193.Mention some of the popular tools used with DevOps?

  • There are a number of popular tools with which DevOps is used:
    • Git
    • Jenkins
    • Ansible
    • Puppet
    • Nagios
    • Docker
    • ELK (Elasticsearch, Logstash, Kibana)

194.What are Amazon EBS-Optimized instances?

  • Amazon EBS streamlined occasions to guarantee that the Amazon EC2 case is set up to exploit the I/O of the Amazon EBS Volume. An Amazon EBS-improved occasion utilizes a streamlined setup stack and gives the extra devoted ability to Amazon EBS I/When you select Amazon EBS-upgraded for a case you pay an extra hourly charge for that instance.

195.Explain the AWS Certificate Manager.

  • AWS Certificate Manager is an administrative feature for various activities using Secure Socket Layers to arrange interchanges and setting up of the character of various sites over the internet.

196.What is SQS?

  • Simple Queue Service (SQS) by Amazon provides quick and reliable message queuing service in which messages are queued temporarily until the user wish to send them to consumers. Basic Amazon Web Services Interview Questions for both freshers and experienced.

197.What are the routing policies available in Amazon Route53

  • Various Routing Policies in Route53 are listed below. Simple, Failover, Weighted, Geolocation, Latency based

198.What is Geo Restriction in CloudFront?

  • A Geo-restriction feature causes you to keep clients of explicit geographic areas from getting to content which you’re conveying through a CloudFront web circulation.

199.What are security groups?

  • Security groups go about as a firewall that contains the traffic for at least one example. You can relate at least one security gathering to your occasions when you dispatch at that point. You can add guidelines to every security bunch that enables traffic to and from its related examples. You can alter the guidelines of a security bunch whenever the new standards are naturally and promptly connected to every one of the occasions that are related to the security group.

200.How to Use Amazon Sqs?

  • Amazon SQS (Simple Queue Service) is a message-passing system that is utilized for correspondence between various connectors that are associated with one another. It likewise goes about as a communicator between different segments of Amazon. It keeps all the distinctive utilitarian segments together. This usefulness causes various parts to be inexactly coupled and gives engineering that is a more failure resilient system.

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