Top DevOps Interview Questions

The development and distribution of software products have been transformed by DevOps, which stands for Development and Operations. The DevOps technique prioritizes delivering regular, incremental improvements over sporadic, large feature sets.

DevOps is quite beneficial for IT operations as, before the introduction of DevOps, the IT staff continued to have several internal challenges. This entire process changed with the introduction of DevOps. As it enabled the IT operations to communicate these issues to the rest of the company, improving collaboration and transparency.

The top interview questions and answers to ace your next DevOps interview are listed below.

1. What is DevOps?

The words "DevOps" are a combination of two terms: "software development" and "operations." The complete application lifecycle, including development, testing, deployment, and operations, can be managed by a single team thanks to DevOps. System administrators, QA engineers, and software developers may communicate more effectively thanks to DevOps.

2. What is the DevOps fundamental tenet?

The DevOps movement is a culture shift that unites development and operations teams for the duration of the life cycle of a product or service. The goal is to facilitate speedier product distribution and facilitate simpler maintenance.

3. What are the guiding principles/principles of DevOps?

The following are the guiding principles/principles of DevOps −

• Continuous deployment

• Infrastructure as code

• Automation

• Monitoring

• Security

4. What approach is connected to DevOps?

The agile approach and DevOps are connected.

5. What are the different stages of DevOps?

DevOps is often divided into six stages. Phases are not, however, clearly delineated, and no phase starts until the last one has fully concluded.

1. Organizing/Planning

The first stage of the DevOps lifecycle involves planning and developing software. The project must be adequately understood throughout this phase for each participant's final job aim.

2. Development

In this stage, the project is constructed through the creation of infrastructure, codes, test definitions, or automated processes.

3. Continuous Integration

The process for testing and validation is automated at this phase. This includes a special feature that makes sure the development environment is correctly published in service before being integrated with the other apps.

4. Automated Deployment

With the ultimate objective of automating the entire process with the activation of a feature, DevOps encourages the use of tools and scripts to automate deployments.

5. Operations

Since the infrastructure is always changing, all DevOps operations often take place continuously during the course of software development. Opportunities for transformation, availability, and scalability are offered during this period.

6. Monitoring

This phase is a permanent phase of the DevOps process. DevOps monitors and analyzes information that displays the current status of the application

6. What are the requirements for implementing DevOps?

Prerequisites for implementing DevOps are −

• proper teamwork including effective communication.

• At least one version control software (e.g., GitHub)

• Automated testing

• Automated deployment.

7. What are the key elements of DevOps'?

The key elements of DevOps −

• Continuous integration

• Continuous testing

• Continuous supply

• Continuous mongering

8. What advantages does DevOps offer?

DevOps offers a variety of advantages, such as innovation, stability, functionality, and speed.

9. What is a vagrant?

In DevOps, a Vagrant is a tool that can be used to build and maintain virtualized environments for software testing and development.

10. How do Ansible and Puppet work?

For administering a large number of servers, Puppet and Ansible are the tools of choice. These technologies, which are also known as Remote Execution and Configuration Management tools, enable the administrator to carry out or execute the instructions on several servers at once. Its primary function is often the simultaneous maintenance and configuration of thousands of servers.

11. What are the advantages of utilizing a version control system (VCS)?

Version control has the following main advantages −

• Every employee has unlimited access to the file at all times thanks to the Version Control System (VCS). Additionally, it permits the merging of all modifications made to a single version.

• Sharing text files between different computers is very simple since it is intended to facilitate collaborative text editing by several users.

• They give an audit trail for redrafting and updating final versions, which is useful for papers that need a lot of review and redrafting.

• It enables all team members to have access to the whole project history so that, in the event of a server failure, we may use any teammate's repository.

• The VCS has all of the prior iterations and variations neatly organized. You can request any version at any time to learn more about previously finished projects.

12. What does configuration management serve as a DevOps tool?

An organization's agility is increased via configuration management, which automates otherwise time-consuming and laborious activities. Simplifying design, documentation, control, and change implementation during multiple project phases promotes consistency and enhances the process of a product/service.

13. Define Scrum.

Using iterations and growing techniques, Scrum is meant to break down complex software and product development tasks into manageable pieces. Three roles are included in the scrum, including:

• Product owner

• Scrum master

• Team

14. What programming languages and tools are utilized in DevOps?

The DevOps process makes use of both Python and Ruby scripting technologies.

15. What exactly is a merge conflict in Git, and how do you fix one?

Merge conflicts happen when multiple persons are simultaneously making changes to the same file. Git won't be able to determine which of the several versions is the right version as a result.

We must build a new Git repository, add a file, construct a branch, make the necessary alterations, and then commit the changes to resolve the conflicts. The new branch must then be merged with the master. When this is finished, Git displays the differences between the various versions of the file as well as the locations where adjustments must be made to resolve conflicts.

Conclusion

In this article we discussed most commonly asked 15 questions in DevOps Interview. These questions can help you examine and improve your present level of awareness in addition to enhancing your chances of landing a DevOps position.