One of the hottest buzzwords in the tech world today is DevOps. But it is much more than just a buzz, especially considering how its popularity is increasing even as you read this DevOps interview questions blog. It comes as an amalgamation of two words - development and operations - the two departments in it work to maintain coordination.
There is a lot of scope for growth for those who complete their DevOps certification. If you too want to learn DevOps, then there are ample options including a DevOps tutorial or an online class.
When you step out to work in the company of your dreams, it is important you give a stellar interview. And this blog will guide you to make it happen.
Depending upon the business type and your previous experience, what you get asked during an interview may vary. However, to help you increase your chances of getting hired, here is a list of top DevOps interview questions and answers.
We have segregated these questions for general DevOps engineers, Azure DevOps, and AWS DevOps. Let's begin!
Once you complete your DevOps training online or offline and get certified, it is time to put that certification to good use. Here are some of the top DevOps engineer interview questions.
Answers. DevOps has a wide range of tools including-
Answers. There are both technical and business benefits of DevOps.
Technical benefits-
Business benefits-
Answers. The DevOps lifecycle has these phases -
Answers. Configuration management plays a big role in DevOps.
Answers. Four important DevOps KPIs are -
Answers. The "shift left" concept used in DevOps is implemented with the aim of reducing the time between identifying bugs and fixing them.
The simple practice of moving testing is promoted earlier in the stage rather than once the entire integration is done. As errors and bugs are found earlier on in the development stage, less time, money, and effort are wasted later.
Answers. When a manual process is automated to test a system or an application, it is referred to as automation testing. It includes using independent testing tools that aid the user in developing test scripts. These can be run endlessly without any human interaction.
There are dozens of benefits of using Automation Testing. Some of them are -
Answers. Git clone
Answers. When a developer working with a branch is thinking about switching to another branch to work on another task but is unwilling to commit any changes to the current work, they use Git stash. It helps the developer by saving their modified tracked files.
Answers. Some ways in which a Build can be run/ scheduled in Jenkins are -
Now that we have covered the basic questions asked to a DevOps engineer, let us see what Azure DevOps interview questions can be asked.
Answers. Azure DevOps is an application lifecycle management tool, earlier called Microsoft VSTS (Visual Studio Team Services). It aids in project planning via various templates and tools. Azure DevOps also aids with solution deployments across multiple platforms using Azure Pipelines. It allows CI/CD.
Answers. Azure Repos manages the various code versions and even the code itself across the lifecycle of development. This version control system makes it easy to track all the changes in the code. The entire history of changes is kept in detail to be merged at a later stage.
Answers. Azure DevOps supports the following containers -
Answers. A service offered by Azure DevOps, Azure Test Plans offers a browser-based test management solution. It also provides important capabilities in planned manual testing, user acceptance testing, and exploratory testing. Azure Test Plans include a browser extension to have provision for stakeholder feedback and exploratory testing.
Answers. Azure DevOps Server is an on-premises that is built on an SQL Server backend. Customers who wish to retain their data within their network tend to choose this version. Similarly, those who wish to access the SQL Server reporting services that integrate with Azure DevOps Server tools and data.
Azure DevOps Services, on the other hand, offers a reliable and scalable hosted service that is available globally. It is present in local data centers across the globe, is monitored by Microsoft's 24*7 operations team, and is backed by 99.9% SLA.
There are some additional benefits of using Azure DevOps Services including -
Answers. Azure DevOps offers a myriad of tools to enable communication among various members of the development team who are working in all parts of the world. Some of the best ones are -
Answers. The Scrum Master is tasked with many responsibilities within the Scrum process of the development team. A Scrum Master's job in Azure Boards is to ensure the team understands and sticks to the Scrum framework. This person is also responsible for the entire team's efficiency and effective working.
Specific responsibilities shouldered by a Scrum Master in Azure Boards include -
In Azure Boards, a Scrum Master does a lot of other things as well. This includes using the built-in backlogs, dashboards, and Scrum boards to track the progress and manage the sprint. They are also tasked with communicating with the stakeholders.
Answers. VNet or Virtual Network is a service offered by Microsoft's cloud computing platform named Azure. VNet enables users to create their private network, connect it with different Azure resources or their on-premises infrastructure, and manage virtual networks in the cloud.
It comprises a lot of features including VPN connectivity, subnet creation, IP address assignment, and network security, among others.
Answers. The Dogpile effect is a vastly occurring phenomenon that occurs in caching systems as a result of multiple requests for one resource arriving at the same time while the cache for the said resource has expired. The result is a spike in traffic as a lot of requests arrive at the origin server at the same time. This can lead to an overload of the origin server.
However, this effect is preventable by using a technique known as "cache key lock" or "cache stampede protection". With this technique, a lock is used on the cache key that makes sure only a single request is able to regenerate the cache at a time. Any other request made at the same time is made to wait for the lock's release.
Answers. Microsoft Azure DevOps offers a service named Azure Pipelines that facilitates the user in automating their software testing, deploying, and building processes. It has a lot of benefits for those who use it including -
When it comes to pinning down AWS DevOps interview questions, the task is quite humongous. There are many questions that can be asked during an interview and you should be prepared to answer all of them. Of course, the one thing that will help you a lot in preparing you for that part of a good DevOps training. Additionally, these interview questions will help you a lot.
Answers. AWS is a cloud platform by Amazon that facilitates the user in carrying out DevOps practices with ease. It offers a bunch of amazing tools that help in the automation of manual tasks. Thus, aiding engineers to work efficiently and teams to manage complex environments.
Answers. Companies throughout the globe are benefiting greatly as they use AWS for DevOps. Here are some of the reasons why every leading company or a company that wants to be a leading name is going for it -
Image Resource- Market.us
Answers. A service offered by AWS, Codepipeline offers CI/CD services. It also boasts provisions of infrastructure. It allows the user to swiftly model and configure various phases of a software release process.
Answers. AWS Lambda is AWS DevOps is a computation service that facilitates the user to run their code but without the need to manage or provision servers explicitly. No prior integration is needed to run a code for their services or applications.
Answers. Viewing prior build results in AWS CodeBuild is quite easy. We can either make use of the API or the console to do it. The result we receive will include-
Answers. Microservices refer to organizational and architectural approaches to software development. Here, software is made of small independent services that can carry out communication via well-defined APIs.
Microservices Architectures render the applications faster to develop and easier to scale. Both factors enable innovation.
Answers. AMI or Amazon Machine Image is a maintained and supported image offered by AWS. It provides all the necessary information for launching an instance. The user has to specify the AMI when launching an instance. If the user requires various instances having the same configuration, then multiple instances can be launched from a single AMI.
Answers. Infrastructure as Code or IaC is when the infrastructure is managed and provisioned through code rather than through manual processes.
Editing and distributing configurations are made easy with configuration files containing your infrastructure specifications. Undocumented configuration changes can be avoided with configuration management.
Answers. A hybrid cloud is a computing environment that amalgamates an on-premises data center (or a private cloud) and a public cloud to facilitate the sharing of applications and data between them. There are dozens of benefits of a hybrid cloud and that is probably why so many businesses are adopting it.
When a business experiences heightened processing and computing demand that the on-premises data centers cannot take care of, they can switch to the cloud instantly.
Answers. Pod is a simple entity that is used to map between containers in Kubernetes. Each of these pods can consist of one or more containers at a time. These pods have a flat network hierarchy that facilitates straightforward communication between these pods in the overlay network.
The topic of DevOps is never-ending. There are hundreds of questions that the hiring manager can ask you during your interview. But if we are being honest, we don't even need to mention all of them here. Why? Because once you complete your DevOps training online from a good institute, you will be able to get all the answers by yourself.
Of course, it is extremely important you pick the right institute to learn from and give it your all when it comes to preparing for the interview.
Ans. DevOps engineers are hardly ever required to code from scratch. However, it is still essential for them to have a good understanding of top software development languages. They should have working knowledge about development tools used to create new code and even update existing code.
Ans. To become a DevOps engineer, one must at least have a relevant degree in computer engineering, computer science, etc. Additionally, a certification is important. There are a plethora of certifications in the market. Microsoft Certified DevOps Engineer Expert and Amazon Web Services Certified DevOps Engineer are considered good ones.
Ans. It usually takes somewhere around six months to become a DevOps Engineer. Even after that, it is a field where you will have to learn constantly and grow as technology and tools advance.
Ans. DevOps goals are often divided into four categories together called CAMS.
Ans. Python has turned out to be the most popular and widely used language for DevOps.
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