30+ Azure DevOps Interview Questions

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Max Online Training have shortlisted these 30+ Azure DevOps Interview Questions that you mush go through after finishing your Azure DevOps Online Training. These Azure FAQ Interview Questions will help you to achieve some extra knowledge on Azure Training and Certification Course.

30+ Azure DevOps Interview FAQs

1. What do you know about DevOps?

Your answer must be simple and straightforward. Begin by explaining the growing importance of DevOps in the IT industry. Discuss how such an approach aims to synergize the efforts of the development and operations teams to accelerate the delivery of software products, with a minimal failure rate. Include how DevOps is a value-added practice, where development and operations engineers join hands throughout the product or service lifecycle, right from the design stage to the point of deployment.

The most popular DevOps tools include:

  1. Selenium
  2. Puppet
  3. Chef
  4. Git
  5. Jenkins
  6. Ansible
  7. Docker

3. 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

4. What is the difference between continuous delivery and continuous deployment?

Continuous DeliveryContinuous Deployment
Ensures code can be safely deployed on to productionEvery change that passes the automated tests is deployed to production automatically
Ensures business applications and services function as expectedMakes software development and the release process faster and more robust
Delivers every change to a production-like environment through rigorous automated testingThere is no explicit approval from a developer and requires a developed culture of monitoring 

5. 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.

6. 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.

7. How is IaC implemented using Azure?

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 Azure, 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.

8. Which of the following CLI commands can be used to rename files?

  1. git rm
  2. git mv
  3. git rm -r
  4. None of the above

The correct answer is B) git mv

9. Explain the difference between git fetch and git pull.

Git fetchGit pull
Git fetch only downloads new data from a remote repositoryGit pull updates the current HEAD branch with the latest changes from the remote server
Does not integrate any new data into your working filesDownloads new data and integrate it with the current working files
Users can run a Git fetch at any time to update the remote-tracking branchesTries to merge remote changes with your local ones
Command – git fetch origin                  git fetch –-allCommand – git pull origin master 

10. 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

11. 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

12. 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.

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

  1. java –jar Jenkins.war
  2. java –war Jenkins.jar
  3. java –jar Jenkins.jar
  4. java –war Jenkins.war

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

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

  1. build.xml
  2. pom.xml
  3. dependency.xml
  4. Version.xml

The correct answer is B) pom.xml

15. 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. 

16. 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.

17. What are the different exceptions in Selenium WebDriver?

Exceptions are events that occur during the execution of a program and disrupt the normal flow of a program’s instructions. Selenium has the following exceptions:

  • TimeoutException – It is thrown when a command performing an operation does not complete in the stipulated time.
  • NoSuchElementException – It is thrown when an element with specific attributes is not found on the web page.
  • ElementNotVisibleException – It is thrown when an element is present in Document Object Model (DOM) but is not visible. Ex: Hidden Elements defined in HTML using type=“hidden”.
  • SessionNotFoundException – The WebDriver is performing the action immediately after quitting the browser.

18. What are the different test types that Selenium supports? 

Functional – This is a type of black-box testing in which the test cases are based on the software specification.

Regression – This testing helps to find new errors, regressions, etc. in different functional and non-functional areas of code after the alteration. 

Load Testing – This testing seeks to monitor the response of a device after putting a load on it. It is carried out to study the behavior of the system under certain conditions.

19. How can you handle keyboard and mouse actions using Selenium?

You can handle keyboard and mouse events with the advanced user interaction API. The advanced user interactions API contains actions and action classes.

Method Description
clickAndHold()Clicks without releasing the current mouse location 
dragAndDrop()Performs click-and-hold at the location of the source element 
keyDown(modifier_key)Performs a modifier key press (ctrl, shift, Fn, etc.) 
keyUp(modifier_key)Performs a key release

20. Which of these options is not a WebElement method?

  1. getText()
  2. size()
  3. getTagName()
  4. sendKeys()

The correct answer is B) size()

21. What are the different phases in DevOps?

The various phases of the DevOps lifecycle are as follows:

  • Plan – Initially, there should be a plan for the type of application that needs to be developed. Getting a rough picture of the development process is always a good idea.
  • Code – The application is coded as per the end-user requirements. 
  • Build – Build the application by integrating various codes formed in the previous steps.
  • Test – This is the most crucial step of the application development. Test the application and rebuild, if necessary.
  • Integrate – Multiple codes from different programmers are integrated into one.
  • Deploy – Code is deployed into a cloud environment for further usage. It is ensured that any new changes do not affect the functioning of a high traffic website.
  • Operate – Operations are performed on the code if required.
  • Monitor – Application performance is monitored. Changes are made to meet the end-user requirements.

22. 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.

23. 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.

24. What is the role of Azure in DevOps?

Azure 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 Azure services.
  • Automation – Azure lets you automate tasks and processes, giving you more time to innovate
  • Secure – Using Azure Identity and Access Management (IAM), you can set user permissions and policies.
  • Large partner ecosystem – Azure supports a large ecosystem of partners that integrate with and extend Azure services.

25. 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).

26. What is the process for reverting a commit that has already been pushed and made public?

There are two ways that you can revert a commit: 

  1. Remove or fix the bad file in a new commit and push it to the remote repository. Then commit it to the remote repository using:

    git commit –m “commit message”
  2. Create a new commit that undoes all the changes that were made in the bad commit. Use the following command:

    git revert <commit id>

Example: git revert 56de0938f

27. 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.

28. Which of the following commands would you use to stop or disable the ‘httpd’ service when the system boots?

  1. # systemctl disable httpd.service
  2. # system disable httpd.service
  3. # system disable httpd
  4. # systemctl disable httpd.service

The correct answer is A) # systemctl disable httpd.service

29. Which open source or community tools do you use to make Puppet more powerful?

  • Changes in the configuration are tracked using Jira, and further maintenance is done through internal procedures. 
  • Version control takes the support of Git and Puppet’s code manager app.
  • The changes are also passed through Jenkin’s continuous integration pipeline.

30. What are the resources in Puppet?

  • Resources are the basic units of any configuration management tool.
  • These are the features of a node, like their software packages or services.
  • A resource declaration, written in a catalog, describes the action to be performed on or with the resource.
  • When the catalog is executed, it sets the node to the desired state.

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