Devops Interview Questions For Freshers & Experienced

Sharad Jaiswal
12th Dec, 2019
779 Followers

Nowadays software development is not a just investment sound, instead, it has become a main strategic benefit of the business. Thus, it is necessary to have great quality, security, the performance of your product and faster deployment too. Therefore, to ensure the value of the software product, DevOps is emerged to create a more holistic approach to software development and deployment. Now the question arises what is DevOps and how it works? Let's answer it.

DevOps, a set of tools/practices that automates the operations between development and testing teams to deliver the valuable product to the users. In short, DevOps focus on people, integrate the development and operational teams and provide the tools to work together. It is a software life cycle development model that includes activities such as designing, development, maintenance, and scaling. So, DevOps becomes the product-centric and accept the "you build it, you run it" approach. To know more about DevOps, check our online DevOps interview questions.

Key Features of Devops

Below are few major features of Devops

Easily scalable

Automated Tasks

Provides Collaboration

Faster delivery

Better release control & versioning

Reduced Cost over time

Continuous Development

Minimum down time

Lower failure rates

Devops Interview Questions

DevOps vs Agile. Which is better?

DevOps	Agile
DevOps is a set of practices for bringing development and operations teams together.	Agile is an iterative approach which focuses on customer feedback, and rapid releases.
DevOps focuses on regular testing and delivery.	Agile process focuses on continuous changes.
Relatively larger team size as it involves the integration of teams.	Small Team is the focus of Agile.
Feedback is given by the internal team.	Feedback comes from the customer.
Automation is the main goal of DevOps.	Agile doesn't stress on automation.
It addresses the rift between development, testing, and Ops teams.	It addresses the gap between development & testing teams and end-users.
The popular DevOps tools are Puppet, Chef, TeamCity OpenStack, AWS.	JIRA, Bugzilla, Kanboard are some famous Agile tools.

Pros of DevOps:

Communication between teams: It is a traditional hierarchy that the development team and the operational team have a lack of communication. Operation team has to adjust the code each time whenever the codes have similar problems. So, to improve the efficiency of work, DevOps provide the solution by integrating these two teams. These two teams discuss their common problems and solve them respectively. This reduces the development time and increases productivity.
Faster delivery: DevOps means faster testing and deployment as two teams are working together now. And, thanks to the advanced continuous integration and automation tools for speeding up the process of development.
Reduce the chance of failure: The companies who are using DevOps have found that their recovery rate from failures is faster than others which is nearly 24 times more.
Faster in development: The development of an application is 200 times faster in DevOps approved companies in comparison with those who have not adopted DevOps.
Improved flexibility and support: The applications developed using DevOps are easy to maintain and can be used on a large scale i.e., they are more scalable. This is possible because of the microservices and cloud technologies features present in DevOps.
Improved Quality: As the knowledge of the product is not scattered between different teams, so the quality of an application is improved drastically.
Employees and clients: With DevOps, the employee’s loyalty rate is increased. The clients also are happy because they got their application on time with enthralling services.

Cons of DevOps:

Lack of experience: The experts in DevOps are very hard to find. Usually, the specialists have 0-4 years of experience in this field which is not enough for large projects. That's why the companies are finding difficult to fill the position of this job.
Security measures: DevOps is good for development but in that case, security takes a back seat. This happens because companies never integrate the security teams with DevOps and they don’t know about the methods or tools used to develop the application. Instead of security, DevOps teams chose speed which in turn, introduces flaws that are difficult to find by the security team.
Choice of tools: Choosing the tools that perfectly matches with your application is a burdensome task. Sometimes you don't know about the functionality of all the tools, and sometimes you don't know which tool is beneficial for your project. Moreover, switching the tools can be a big challenge as you have to transfer all of your projects. Also, this wastes a lot of time.

To adapt with DevOps, you might have to rebuild your team as all current members might not know about DevOps. This may include changing roles of team members, hiring DevOps expertise, understanding of new tools and many more.

About Author :

Sharad Jaiswal

Sharad Jaiswal is Sr. Web Developer from Noida area. He have rich experience in PHP, Angular Js, React, javascript and Node .If you any query or project on these programming you can drop your enquiry in comment section.