10 Microservices Interview Questions You Must Know

10 Microservices Interview Questions You Must Know

10 Microservices Interview Questions You Must Know. Do you want to get a job as a microservices developer? Are you looking for some practical microservices interview questions? Microservices Interview Questions and Answers along with the Interviewer's Perspective on each answer.

Microservices Interview Questions and Answers along with the Interviewer's Perspective on each answer.

Do you want to get a job as a microservices developer? Are you looking for some practical microservices interview questions? If so, this article is for you, wherein you will get to know about the most important microservices interview questions around the day-to-day job responsibilities of a microservices developer. You will also get an insight about how to answer them and an interviewer's perspective to the answers (something unique which you may have never seen before). Isn't that cool?

Ready? Let's get started.

When it comes to hiring a developer for microservices, it is essential to look for practical knowledge in the candidate, in comparison to the theoretical aspects. Of course, conceptual understanding is a must. On top of that, evaluating a candidate based on practical questions certainly helps to gauge the real knowledge of the candidate. It helps to determine if the candidate could be the best fit to be a part of your development team or not.

Microservices Developer Roles and Responsibility

Before we start with the microservices interview questions, let us first understand the job responsibilities of a microservices developer at a high level. Being a microservices developer, the core job responsibility would be to mainly develop the awesome API(s) for the microservices. Test them, make sure they are working fine and in case any issue comes, then debug/troubleshoot the issue and fix it.

These are just the preliminary set of responsibilities of a microservices developer, and it is not an extensive list. There are various other aspects as well a developer would be involved in. However, to begin with, the hands-on practical knowledge around the above areas is a must, to perform a microservices developer role effectively.

With that, let us now look at some interview questions for a microservices developer. These are very basic questions a microservices developer must have knowledge about, as per my viewpoint. I have tried to add the answers to them and also included an interviewer's viewpoint about each answer.

I have tried to keep the questions list around microservices REST API development only and haven't included questions about other areas such as version control knowledge and so on.

Okay, with that, the microservices interview questions list goes as follows.

Microservices Practical Interview Questions for Developers

Q1:  Explain how you develop a REST API step-by-step.

Q2.  When do you use HTTP verbs GET, PUT, POST, DELETE while developing a REST API?

Q3.  What is the difference between the URI parameter and the Query String parameter?

Q4.  How do you return error response and valid response from the REST API?

Q5.  You have developed one REST API as a part of your microservice, built it, deployed it on the local machine. Now, how do you test the REST API on your local machine?

Q6. REST API is deployed on the dev server and has been integrated with the UI. Now, if required, how will you debug the REST API call from UI?

Q7:  How do you authenticate a user for accessing the REST API?

Q8:  What is Filter/Middleware? In which scenario, it would be used?

Q9:  What is the difference between logging and tracing in microservices? Which tools do you use to see them?

Q10:  What is Swagger? What is the use of it?

microservices

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