DevOps interview questions are primarily based on key DevOps principles that drive the DevOps methodology. DevOps is a working culture or method adopted to develop and deliver quality-oriented software products quickly but effectively and efficiently.
DevOps interview questions may assess your knowledge of DevOps principles themselves or centered around the tools, techniques, technologies, processes, and functions utilized to put them into practice.
This article covers essential DevOps principles to help you prepare for a DevOps interview. Also included are sample DevOps interview questions you can expect about these principles.
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In this article, we cover:
DevOps is a methodology, approach, or work culture for developing software through collaboration between the software development and IT operations teams. Some of the critical benefits DevOps offers are:
You can expect DevOps interview questions based on the top DevOps Principles that underlie the DevOps methodology at a technical interview.
The following principles must be followed for DevOps to be fully implemented in an organization. We’ve also listed some common sample DevOps interview questions based on key DevOps principles.
DevOps and Agile are methodologies for developing software quickly and efficiently through collaboration between teams without cross-functionalities.
Automation is a fundamental part of the DevOps essential practices of Continuous Integration and Continuous Development. Automation results in minimizing human errors to enhance quality and productivity. It frees up developers to work on additional and advanced features. It also allows for continuous improvement by enabling efficient feedback between developers and operations teams for quick iterations. This increases reliable deliveries over multiple platforms.
A CI / CD pipeline is a process comprising four stages — Source, Build, Test, Deploy, and using CI /CD tools — Jenkins, Circle CI, Bamboo.
In DevOps, continuous monitoring refers to the automated process of identifying compliance and security risks of software deployed into production. Continuous monitoring enhances security and transparency, maintains and improves software performance, resolves errors, monitors user behaviors. Continuous monitoring applies to network activity, infrastructure processes, and application performance.
DevOps' continuous monitoring tools include Nagios, Akamai mPulse, Splunk, Dynatrace, Kibana, Sensu, etc.
Version control is a central repository in which developers store and track changes to code for -software development workflows. Version control systems allow developers to maintain a project’s source code in its original form. Teams can then develop branches or work on copies of the source code, which multiple developers can track and collaborate on. Code updates are tested for errors and compatibility with existing code before deployment to production.
GitHub is a popular version control system that allows all developers to view revisions and track issue resolution.
DevOps is based on several concepts centered around bringing together software development and operations teams, which otherwise perform as separate functions. Besides the key principles mentioned above, some other important DevOps principles that underlie the successful adoption of the DevOps culture, based on which various DevOps tools and technologies are developed and used, are:
To successfully answer DevOps interview questions, including real-time interview questions on DevOps, you should be well prepared on the following:
Q1. Why does DevOps recommend shift-left testing principles?
Shift-left testing questions are usually DevOps interview questions for experienced engineers. Shift-left testing enables quick, effective development of high-quality solutions by identifying errors at the initial stages of the SDLC.
Q2. What does a DevOps engineer do?
DevOps interview questions can focus on the main responsibilities of a DevOps engineer. DevOps engineers work with the product development and operations teams to ensure customer satisfaction by quickly delivering and monitoring quality products by following key DevOps principles for software development.
Q3. How do I prepare for a DevOps interview?
To answer DevOps interview questions effectively, you should be familiar with DevOps principles, practices, benefits, and tools and possess DevOps technical and soft skills — CI / CD, Linux, Scripting, Coding, Testing, Cloud, Configuration, Collaboration, Communication, etc.
Q4. What DevOps tools should I know to answer DevOps interview questions?
To prepare for your DevOps interview, you should be familiar with key DevOps tools — Git, Jenkins, Docker, Ansible, Selenium, etc.
Q5. What are some top DevOps interview questions for experienced engineers?
DevOps interview questions for experienced professionals cover pair programming, Dogpile effect, Jenkins, Linux OS, IAC, etc.
If you’re a software engineer or a software developer preparing for a role in DevOps, here’s how you can develop the skills you’ll need to answer DevOps interview questions to crack your tech interview at top tech companies.
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