45 Questions For Software Testing Interview With Sample Answers (Part 1)
Software testing is a vital part of the software development life cycle. The ultimate goal of software testing is to verify that the software operates smoothly and complies with the requirements.
When interviewing for positions as a software tester or QA, you must answer questions to show your technical skills and abilities related to software quality control. Interviewers want to ensure you can handle tasks effectively. Practicing questions for software testing interviews can help you feel well-prepared in front of experienced people.
This series of articles by GCT Solution provides the frequently asked software testing interview questions for positions as a QA, an automation tester or a manual tester.
45 Common Questions For Software Testing Interview (Part 1)
1. Differentiate quality control, quality assurance and testing?
Example answer:
Quality control involves multiple activities, including testing, that support the achievement of appropriate levels of quality.
Quality assurance is typically focused on adherence to proper processes, in order to provide confidence that the appropriate levels of quality will be achieved.
Testing includes finding issues, bugs or errors. The testing process ensures that the software meets standards and user requirements.
2. Give a brief description of the software testing life cycle?
Example answer:
The software testing life cycle is a testing process including certain steps to complete one by one. This process ensures that the development team constructed proper functions and satisfied client requirements.
3. What are the different methods of testing?
Example answer:
There are three methods of software testing:
Black-box testing: It is based on requirements and specifications. It does not require knowledge of internal paths, structures, or implementation of the software.
White-box testing: It is based on internal paths, code structures, and implementation of the software. This technique requires testers to have programming skills.
Gray-box testing: It is the optimal strategy in which the tester has limited knowledge of the internal details of the software.
4. Can you name levels of testing?
Example answer:
There are four main testing levels:
Unit Testing
Integration Testing
System Testing
User Acceptance Testing
5. Differentiate Verification and Validation in Software Testing?
Example answer:
Verification is a static technique of analysis. Testing is performed without executing the code. Examples consist of reviews, inspection, and walkthrough.
Validation is a dynamic technique of analysis. Testing is performed by executing the code. Examples consist of functional and non-functional testing.
6. Name major differences between non-functional and functional testing?
Example answer:
Functional testing answers the question “what should the system do?”.
Non-functional testing answers the question “how well does the system behave?”.
The thoroughness of functional testing can be measured through functional coverage, which is the extent to which some functionality has been exercised by tests, and is expressed as a percentage of the types of element being covered.
The thoroughness of non-functional testing can be measured through non-functional coverage, which is the extent to which some type of non-functional element has been exercised by tests, and is expressed as a percentage of the types of element being covered.
7. Differentiate negative and positive testing?
Example answer:
Negative testing validates how the system works when a user inputs invalid commands
Positive testing validates how the system works when a user inputs valid commands.
8. What is regression testing?
Example answer:
When new features are added to the existing code, new changes may negatively impact a working feature.
Regression testing helps ensure that the new changes do not break the system operation, and verify that the new code interacts well with the existing code.