Although the main job of software testers is to perform testing activities in different phases of a project, when it comes to testing their own skills, they lack choosing an appropriate approach at times.
Facing an interview as an experienced software tester requires you to be fully prepared in terms of understanding the job profile thoroughly and checking the requirements in terms of experience.
Here, we have prepared a list of 10 important questions that are generally asked to experienced testers at an interview.
1. Walk us through the process of creating a test script?
The interviewer wants to assess your conceptual knowledge here. You will have to explain the detailed process for creating a test script which involves three main steps:
• To get a detailed understanding of the AUT either through requirement docs or by the point of references such as screenshots or a previous version of the application.
• The next step is to get familiar with the requirements by making a list of important areas in the application that needs to be tested.
• The last step is to focus on curating detailed steps about how to do the testing for a particular feature followed by working on the test data and the anticipated results.
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2. Can you tell us the difference beta testing and pilot?
The interviewer is trying to assess your previous testing knowledge here. You have to explain to them that the pilot testing usually takes place in the earlier phase of the development cycle whereas beta testing is performed when the product is about to be released to the end user.
3. Explain the benefits of statement coverage metric of software testing
Here you need to talk about the main benefits of statement coverage metric that it does not require processing source code and can be directly applied to the object code. Additionally, the percentage of executable statements covered shows the percentage of faults discovered as the bugs are evenly distributed through code.
4. What, according to you, is the purpose of the software testing process?
You need to be precise yet clear with this answer. A short and simple answer here is to explain that the purpose of the software testing process is to verify that input data produces the expected output. In other words, various testing techniques are basically used for the dual purpose of identifying defects and to subsequently reduce the number of test cases.
5. Explain the difference between retesting and regression testing?
Retesting is the process of simply running the same testing again. On the other hand, regression testing is the process of performing tests to ensure that the modifications made to a system or module do not affect the previous releases negatively.
6. Define the concept of exploratory testing?
This is one of the frequently asked questions to experienced testers. You need to explain that the exploratory testing is the process where test design and execution is done simultaneously against an application. In exploratory testing, the tester uses both the experience and domain knowledge to predict the unique conditions when the system might behave unexpectedly.
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7. Is QA and testing same or different?
This is again a question to assess your conceptual understanding. You need to explain that QA and testing aren’t the same and differ in terms of their respective goals. While the purpose of QA is to prevent errors in the application, testing is performed to find errors.
8. Explain the terms bug, error, failure, defect, fault, and mistake?
This seemingly simple question tests your knowledge as an experienced tester. You need to talk about how error and mistake are the same things whereas bug, fault, and defect are the same thing. When a mistake (error) is made, it produces a defect (bug, fault) in the software application that might cause a failure.
9. What are some of the challenges of software testing?
Among the main challenges include time constraint, lack of skilled testers, lack of tools, resources & training, understanding of specific requirements, and constantly changing the business environment
10. Explain gray box testing?
One of the advanced testing concepts, gray box testing is the amalgamation of the black box and white box testing. Here, the test engineer designs test cases based on the knowledge of coding section of the component.
Apart from these, some of the other important testing questions asked to experienced testers may include:
a. What is your understanding of the test scenario and test case?
b. What are the different steps involved in sanity testing?
c. Explain the test harness?
d. What are the basic principles of testing?
e. What is the difference between bug severity and bug priority?
f. Define Requirement Traceability Matrix?
g. What is the criterion for automating a test?
h. Is web application testing different from desktop application testing?
i. Talk about the difference between system testing and integration testing?
As you go for your software testing interview, remember that the interviewers are more interested in hiring a candidate with a practical approach rather than looking for ideal cases. Showcasing your unique approach at solving the problems coupled with the right attitude and your confidence level with which you take the questions is key for nailing the interview.
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