Top 20 Test Engineer Interview Questions & Answers


It is crucial to be fully prepared before going for a job interview. In this article, we will look at the top 20 interview questions and answers that could be used when interviewing for a Test Engineer position.

1.   Why Are You Interested In This Role? 

Tip 1: Mention your interest in this field

Tip 2: Try relating a story of why you wanted to come into this field 

Answer: I found this position and this role when I was starting college. I realized this field is a very flexible career as it has its ends in business and technical roles as well. I wanted to begin with my career in technology and acquire skills that could be used in software development. I wanted to be in this sector as I always found myself more observant than most people, and I could easily spot errors and backfalls. Hence my efficiency in this field comes from this natural ability.

2.   What Are The Roles Of A Test Engineer? 

Tip 1: He wants to know how much knowledge you have

Tip 2: Mention the roles you have played in the previous position 

Answer: Test Engineers are assigned to implement and design the tests that make sure that the end products have the quality and functionality required. They are also a core part of all of the phases of a testing program, from designing test parameters to troubleshooting the errors and writing the final test procedures. Testers also execute and log tests, evaluate their results, and document all of the problems found. They monitor the process of testing and test the environment. 

3. What Are The Qualities That A Test Engineer Should Possess To Be Effective?

Tip 1: Mention the qualities that made you excel in your role as a test engineer

Tip 2: Try making sure you show your homework done about this interview 

Answer: A Test Engineer must have certain qualities that allow him to find out errors and backfalls of products no matter how small or insignificant they are. His qualities also include having a test to break behavior towards his daily tasks. He should be able to view products from the customer perspective and must be quality driven. He should be diplomatic and tactful and must be able to maintain a highly cooperative relationship with the developers. 

4. What Major Challenges Did You Face During Your Last Role? How Did You Handle It? 

Tip 1: He wants to know your ability to fit in a new surrounding

Tip 2: Show him how well you adapt to new surroundings

Answer: Though my previous job position was great to help me learn something new every day, I was always challenged when I had to go through communication issues. Most errors and mistakes happen in products only because of the communication gap organizations have. Also, I feel challenged when I find a lack of requirements document and an unstable environment. These factors, though, have also helped me adapt to situations where I have to utilize my testing and analytical skills only to test products.

5. Describe Your Daily Routine as a Test Engineer?

Tip 1: Show how much working tasks you can deliver per day

Tip 2: Keep it concise and mention the tasks you did best

Answer: Being a testing engineer, my days always began with testing the emails that I had received from the previous day and overnight. Then I had to create the test plans to test new product features, update the tests, and perform manual testing and reporting on their bugs. This involved my daily routine of keeping an eye on the products that were already tested.

6. Describe Briefly Your Test Engineer Experience? 

Tip 1: Show what you enjoyed and what you didn’t

Tip 2: He wants to know how experienced you are for this role

Answer: Being on the testing end, I really enjoyed my role. It was always a source of learning new things and new technologies while being paid for it. My interest in technologies and business-led me to this job, and hence I always find it great to be having an opportunity to test products that are going to go into the hands of millions of people.

7. What Kind Of Strategies And Mindset Is Required For This Role? Explain With Example 

Tip 1: Show him that you have a personal mindset and strategy to work with

Tip 2: Be clear of what you think is the right mindset 

Answer: A Test engineer should have a mindset of curiosity and having the freedom to ask questions. These two mindsets allow testers to be able to check products and find unclear and invisible errors and pitfalls. He should also have the right will to help other team members develop their testing skills and work together as a team. This allows the team to form quality products and come up with the best end results that are error-free. 

8. What Is The Biggest Challenge That You Foresee In This Job? 

Tip 1: He wants to see if you are ready to get started on this role

Tip 2: Mention the challenges that you believe this role, in general, would have.

Answer: Being in this job role has allowed me to handle challenges and adapt to changing work environments. I believe this role can also have challenges like the inability to address the team’s people of the flaws and issues because of their personal and personality issues. But I believe I will be able to adapt to this role as I am for this, i.e., finding errors and fixing them or dealing with them to make them less harmful for the company.

9. How Do You Stay Motivated At Work? 

Tip 1: Show what are the driving forces that make you do your best

Tip 2: Talk about the things that motivated you in your worst and best as well

Answer: I am always motivated by being curious about product development processes and the challenges I face. I believe this position is of high importance as any product reaching customers’ hands can not be brought back for fixing things. Hence I am motivated by the daily pressure we testers have on us to provide the very best quality.

10. Describe A Time You Failed In This Role And The Lesson You Learned

Tip 1: Don’t ever say you never failed 

Tip 2: Show how you are learning and coping with things that made you fail

Answer: Once a small error in the end product, I ignored thinking of it being insignificant. But soon, when the product became a failure, I realized that only if I could have known the value of that small error. But through this experience, I have understood that my analytical skills are of very high importance, and I should use them to assess what is coming ahead.

11. State The Major Difference In QA And Software Testing?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: A QA is responsible for monitoring the quality of the process needed to prepare the software. While the testing is the process of making sure that the end product meets most or all of the requirements stated by the customer 

12. What is the difference between build and release?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: A build is a number given to any installable software given to the team’s testing team at the development end.  Simultaneously, the release is the number of installable software given to the customer by the tester or the developer.

13. What is the difference between quality control, quality assurance, and testing?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: Quality assurance is a process of planning and defining the monitoring methods and implementing quality in a team. This defines and sets the standards of quality of projects. 

Quality control is the finding of defects and also providing suggestions to make quality improvements. 

Testing is the entire process of finding bugs or defects. It makes sure if the product being built meets the requirement set provided by the user or not.

14. What Do The Test Strategy And Test Plan Include?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: Test strategy is at a higher level that is mostly created by the project manager that shows the whole approach of testing for the entire project. In comparison, the test plan shows how testing must be performed for any particular application that falls under a project. 

15. Do You Think QAs Can Take Part In Resolving Production Issues?

Tip 1: He wants to see your experience in this field

Tip 2: respond with the best practice you found in your previous role

Answer: Yes, it is a great learning curve for the QAs to solve production issues. Most of the time, the production issues may get resolved by clearing all of the logs or by making a few registry settings. The QA team may well fix such environmental issues. If a test engineer has a skill in production issues, he may add them while writing the test cases. 

16. What Is The Difference Between Functional And Nonfunctional Testing?

Tip 1: He wants to see your experience in this field

Tip 2: respond with the best practice you found in your previous role

Answer: Functional testing is all about the functional aspects of the application. This is the technique that tests that if the system is acting as required. These are also directly connected with what the customer requires. This also involves the validation of test cases that are against the specified requirements and also making the test results accordingly as passed or failed. 

17. What Is Negative Testing?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: the negative testing is the technique that validates the system behavior as required if there are any invalid inputs. Just as if the user enters any invalid data in the text box, the system must show a proper message instead of just the technical message that the user doesn’t understand. It is different from positive testing as the latter only gives validation of the system that it is working as expected. 

18. How Will, You Make Sure That Your Testing Is Complete With Good Coverage?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: for this, I will use the requirement traceability matrix and the test coverage matrices. This helps us make sure that we have great coverage. The first one helps us determine that the test surroundings are enough to make sure that the requirements are completely covered. 

19. What Is Validation And Verification?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: Validation is evaluating the final product to check if the software meets all the business needs. The test execution that we do in our daily life is the validation activity that includes smoke testing, regression testing, functional testing, etc. 

The verification is evaluating the intermediary work products of the software development lifecycle to find out if we are on the right track to creating the final product. 

20. What Is The Difference Between Load And Stress Testing?

Tip 1: Show that you have done your homework well 

Tip 2: He wants to know your understanding of the role 

Answer: Stress testing validates the behavior of the product or system when it is executed under stress. We reduce the resources while also checking the behavior of the entire system. We initially understand the upper limit of the product and then reduce the resources and go for checking the system behavior. In contrast, load testing is the validation of product or system behavior in the expected load. This load may be of the concurrent user or the resources that are assessing the system simultaneously.

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