DevOps is more of a mindset then it is a tool integrating with different technologies to bring ease, cost-effective operations, and automation into a business. DevOps serve the purpose of automating various processes by building a collaborative approach between the development team and the operations team. That is why it might take you years or months at least to perfect your version of the DevOps.
But on the other hand, if you are a DevOps professional and in search of a job then chances are that you might be given a hard time from the interviewer during your Q&A session about the DevOps. Things can go both ways, chances are that either you will find a lenient or supportive interviewer not in the habit of twisting things up or on the contrary your interviewer will try their best to lure you into one of their twisted traps.
It is, therefore, better to be prepared beforehand than having to regret preparing for the interview before the schedule. You might want to prepare for them by signing up our courses, yes courses because DevOps isn’t as easy as instating a network for a company it is much more complex than that.
However, following is a list of the most susceptible questions an interviewer can ask you;
Interview Q/A regarding DevOps
Q1: How would you differentiate between DevOps and Agile?
DevOps can be stated as an updated version of agility. Agility only goes as far as having to speed up the development process and has nothing to do with the operations side. Whereas DevOps provides agility in both development and operations. Different processes such as continuous integration and development are involved in DevOps while different tools such as Agile Kanban and Scrum are basically used in the agile method. With DevOps, you have the scope for increased agility and automation but with agile, you only get the agility and nothing else.
Q2: Why there is a need for DevOps?
Companies and businesses were doing fine before DevOps was here but they won't be able to operate similarly if DevOps were to leave them any time in the future. There are many advantages of using DevOps technology such as;
- Production cycles are converged with the speedy delivery of products
- Zero or minimum failure rate
- If a crash occurs then it would only take a limited timeframe to build everything again
- Continuous delivery and operations make the whole business flourish
- Instead of having to promise automation, DevOps actually delivers
Q3: Can you explain some of the latest tools used in a DevOps environment?
DevOps, in fact, used plenty of tools and software to attend to day to day needs of businesses, Here is a list of the tool that is often used in the world of DevOps;
- Git
- Jenkins
- Puppet, Chef, Ansible
- Nagios
- Docker
- Selenium
If you have briefly worked with any or all the tools mentioned above then you can periodically fill in your interviewer with more discreet details. But on the other hand, if you haven't then there is no need to open that Pandora box. Simply stating the names of the tools that you happen to know related to DevOps would do just fine.
Q4: Can you state various technical and business advantages of using DevOps technology?
The benefits associated with DevOps might continue to change based on your interaction with it or how it helped you around in the last project. But if you don’t have any hands-on experience with DevOps in the field then limit your answer to the following benefits;
Technical Advantages
- Speedy fix for pertaining technical problems
- Faster delivery of the products in an automated way
- Very fixating technology to be used in technical fields with continuous delivery and continuous integration
Business benefits
- It offers a more stable and checked operational environment
- It is cost-effective and can indicate the businesses to cut various costs at various nodes
- Can be customized according to the business objectives rather having to try and change the objectives of businesses according to it
Other various benefits include providing your business with a blueprint of how to take on the effective operation of development and delivery of the products, timely delivery to the clients as well as automation of every single process being used.
Q5: How would you explain version control?
Version control is an important integrated system that is being used by DevOps systems. It allows the other users to pick up any given file and start working on it. Later on, all the changes made to a specific file or project can then be integrated and overlapped. It can also encompass various previous versions of the software or tool that you are working on and upon request, you can have the complete project with all other relative files at hand.
When a particular file or project is being edited and relative changes are made, the VCS (version control system) would store all the information such as what changes were made and who made them so this updated information can be supplied to whoever requires it.
Q6: Explain in detail the single most important thing that DevOps can help us achieve?
The only thing that DevOps helps us achieve in the long run of events is automation. How everything falls into the right pieces over time, how you can effectively scale up and down whenever you like are the characteristics applications that DevOps helps us achieve. Diverging into the concept of automation, DevOps helps by speeding up the delivery as well as the production of the products in an automated fashion with zero to minimal human activity involved. This incurs fewer costs and reduces the delivery time for the products to reach the users.
These are mainly the questions that you will be asked about while in an interview for a DevOps oriented job. But on the other hand, only directing your approach to these questions is not enough as they can change in relation to what the interviewer has in mind and the circumstances in which interview would be conducted. DevOps cloud training is important for those who only have beginner-level experience with the concept to be able to strengthen their career for years to come.