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Software Testing Questions

I have so many questions in my mind when I think of any interview questions for Software testing / QA Engineer. Would you be able to answer all of them?

1. What is Software Testing?
2. What is the Purpose of Testing?
3. What types of testing do testers perform?
4. What is the Outcome of Testing?
5. What kind of testing have you done?
6. What is the need for testing?
7. What are the entry criteria for Functionality and Performance testing?
8. What is test metrics?
9. Why do you go for White box testing, when Black box testing is available?
10. What are the entry criteria for Automation testing?
11. When to start and Stop Testing?
12. What is Quality?
13. What is Baseline document, Can you say any two?
14. What is verification?
15. What is validation?
16. What is quality assurance?
17. What is quality control?
18. What is SDLC and TDLC?
19. What are the Qualities of a Tester?
20. When to start and Stop Testing?
21. What are the various levels of testing?
22. What are the types of testing you know and you experienced?
23. What exactly is Heuristic checklist approach for unit testing?
24. After completing testing, what would you deliver to the client?
25. What is a Test Bed?
26. What is a Data Guidelines?
27. Why do you go for Test Bed?
28. What is Severity and Priority and who will decide what?
29. Can Automation testing replace manual testing? If it so, how?
30. What is a test case?
31. What is a test condition?
32. What is the test script?
33. What is the test data?
34. What is an Inconsistent bug?
35. What is the difference between Re-testing and Regression testing?
36. What are the different types of testing techniques?
37. What are the different types of test case techniques?
38. What are the risks involved in testing?
39. Differentiate Test bed and Test Environment?
40. What ifs the difference between defect, error, bug, failure, fault?
41. What is the difference between quality and testing?
42. What is the difference between White & Black Box Testing?
43. What is the difference between Quality Assurance and Quality Control?
44. What is the difference between Testing and debugging?
45. What is the difference between bug and defect?
46. What is the difference between verification and validation?
47. What is the difference between functional spec. and Business requirement specification?
48. What is the difference between unit testing and integration testing?
49. What is the diff between Volume & Load?
50. What is diff between Volume & Stress?
51. What is the diff between Stress & Load Testing?
52. What is the Diff between Two Tier & Three tier Architecture?
53. What is the diff between Client Server & Web Based Testing?
54. What is the diff between Integration & System Testing?
55. What is the Diff between Code Walkthrough & Code Review?
56. What is the diff between walkthrough and inspection?
57. What is the Diff between SIT & IST?
58. What is the Diff between static and dynamic?
59. What is the diff between alpha testing and beta testing?
60. What are the Minimum requirements to start testing?
61. What is Smoke Testing & when it will be done?
62. What is Adhoc Testing? When it can be done?
63. What is cookie testing?
64. What is security testing?
65. What is database testing?
66. What is the relation ship between Quality & Testing?
67. How do you determine, what to be tested?
68. How do you go about testing a project?
69. What is the Initial Stage of testing?
70. What is Web Based Application Testing?
71. What is Client Server Application Testing?
72. What is Two Tier & Three tier Architecture?
73. What is the use of Functional Specification?
74. Why do we prepare test condition, test cases, test script (Before Starting Testing)?
75. Is it not waste of time in preparing the test condition, test case & Test Script?
76. How do you go about testing of Web Application?
77. How do you go about testing of Client Server Application?
78. What is meant by Static Testing?
79. Can the static testing be done for both Web & Client Server Application?
80. In the Static Testing, what all can be tested?
81. Can test condition, test case & test script help you in performing the static testing?
82. What is meant by dynamic testing?
83. Is the dynamic testing a functional testing?
84. Is the Static testing a functional testing?
85. What are the functional testing you perform?
86. What is meant by Alpha Testing?
87. What kind of Document you need for going for an Functional testing?
88. What is meant by Beta Testing?
89. At what stage the unit testing has to be done?
90 Who can perform the Unit Testing?
91. When will the Verification & Validation be done?
92. What is meant by Code Walkthrough?
93. What is meant Code Review?
94. What is the testing that a tester performs at the end of Unit Testing?
95. What are the things, you prefer & Prepare before starting Testing?
96. What is Integration Testing?
97. What is Incremental Integration Testing?
98. What is meant by System Testing?
99. What is meant by SIT?
100 .When do you go for Integration Testing?
101 Can the System testing be done at any stage?
102. What are stubs & drivers?
103. What is the Concept of Up-Down & Down-Up in Testing in integration testing?
104. What is the final Stage of Integration Testing?
105. Where in the SDLC, the Testing Starts?
106. What is the Outcome of Integration Testing?
107. What is meant by GUI Testing?
108. What is meant by Back-End Testing?
109. What are the features, you take care in Prototype testing?
110. What is Mutation testing & when can it be done?
111. What is Compatibility Testing?
112. What is Usability Testing?
113 What is the Importance of testing?
114. What is meant by regression Testing?
115. When we prefer Regression & what are the stages where we go for Regression Testing?
116. What is performance testing?
117. What is the Performance testing; those can be done Manually & Automatically?
118 What is Volume, Stress & Load Testing?
119. What is a Bug?
120. What is a Defect?
121. What is the defect Life Cycle?
122. What is the Priority in fixing the Bugs?
123. Explain the Severity you rate for the bugs found?
124. Diff between UAT & IST?
125. What is meant by UAT?
126. What all are the requirements needed for UAT?
127. What are the docs required for Performance Testing?
128. What is risk analysis?
129. How to do risk management?
130. What are test closure documents?
131. What is traceability matrix?
132. What ways you followed for defect management?

133. What is diff betn Smoke Testing and Sanity Testing?

Test Automation job interview questions:
1. What automating testing tools are you familiar with?
2. How did you use automating testing tools in your job?
3. Describe some problem that you had with automating testing tool.
4. How do you plan test automation?
5. Can test automation improve test effectiveness?
6. What is data – driven automation?
7. What are the main attributes of test automation?
8. Does automation replace manual testing?
9. How will you choose a tool for test automation?
10. How you will evaluate the tool for test automation?
11. What are main benefits of test automation?
12. What could go wrong with test automation?
13. How you will describe testing activities?
14. What testing activities you may want to automate?
15. Describe common problems of test automation.
16. What types of scripting techniques for test automation do you know?
17. What are principles of good testing scripts for automation?
18. What tools are available for support of testing during software development life cycle?
19. Can the activities of test case design be automated?
20. What are the limitations of automating software testing?
21. What skills needed to be a good software test automator?
22. How to find that tools work well with your existing system?
23. Describe some problem that you had with automating testing tool.
24. What are the main attributes of test automation?
25. What testing activities you may want to automate in a project?
26. How to find that tools work well with your existing system?
27. What are some of the common misconceptions during implementation of an automated testing tools for the first time?

WinRunner interview questions
QuickTest Professional coming soon

1. Give one line answer about WinRunner?
2. How do you define WinRunner on your own?
3. WinRunner is suitable for which type of applications?
4. What are all the types of applications WinRunner can use?
5. What’s the WinRunner version number you used for your applications?
6. What are all the different types of recordings available in WinRunner?
7. When do you go for Context Sensitive and Analog recordings? What’s the difference between them?
8. What are all the Limitations & Advantages of WinRunner?
9. Where you find that you can’t use WinRunner for automation?
10. What’s the types application you working on using WinRunner?
11. What’s your comfort level in using WinRunner?
12. What is meant by Synchronization? How do you implement it in WinRunner?
13. What is meant by Check points? Types of Check points? In what situation will you use it?
14. What are all the different platforms that WinRunner can be used?
15. Any knowledge of Test Director?
16. Difference between WinRunner and Test Director?
17. What databases can Test Director reside on?
18. Explain the project tree in Test Director.
19. Advantages of WinRunner over other market tools silk, robot etc.?
20. How does Winrunner identify GUI Objects?
21. What’s the use of GUI Map Editor?
22. Winrunner GUI map modes?
23. What are the two GUI Map modes available in WinRunner?
24. What is the use of rapid test script wizard?
25. How will you synchronize tests using WinRunner? When should you synchronize? Synchronize settings?
26. How do you check GUI objects?
27. How do you check a bitmap?
28. What is meant by GUI Spy?
29. Besides Record and Replay what else can be done using WinRunner?
30. What are different types of running a test?
31. When do you use Verify/Debug/Update Modes?
32 When do you use Break Points?
33. What is Toggle Break Points? How it differ from Break points?
34. What’s Step and Step into?
35. What’s the role of GUI Map Editor? (Its connects logical name in the script to the physical attributes of the object in the GUI Map Editor).
36. What is meant by Function Generator? (F7).
37. How do you load GUI Map Editor?
38. What is injector in load runner?
39. What is TSL? What 4GL is it similar too?
40. How do you program tests with TSL?
41. How do you invoke an application using TSL?
42. What is Module? What’s Compiled Module?
43. Explain data parameterization in WinRunner.
44. What is User Define Functions? What are all the different types of User
45. What is Function? Types of Functions?
46. Defined Functions available in WinRunner?
47. Name a couple of standard web function found in the function generator? And explain their purpose.
48. Where do you use Private/Public function in your script?
49. How do you forcibly capture an Object using WinRunner (when WinRunner not able identify it)?
50. Can you test DB using WinRunner?
51. What are all the different DB that WinRunner can support?
52. How do you set a Query to get/fetch data from the DB?
53. How TSL looks like?
54. What are all the default codes WinRunner will generates when you start an application?
55. What are the other codes you can write/call with in TSL? 56. What are all the different languages can be called using TSL in between the scripts?
57. How do you handle an Exception in WinRunner?
58. Types of Exception available in WinRunner?
59. How do you define an Exception for complete application or for a particular function?
60. How do you run tests on a new version of WinRunner?
61. What are data driven tests & How Do you create it in WinRunner?
62. What’s the File Format used in Data Table?
63. How do you link a Data Table in your script?
64. How do you read text from an application?
65. What is a batch test? How do you program a batch test?
66. What happens when user interface changes?
67. Does load testing possible using WinRunner?
68. Does WinRunner help you in web testing?
69. How do you manage test data, test result?
70. Questions on TSL: How to generate Functions?
71. Running tests from the command line?
72. Explain WinRunner Testing Modes?
73. Have you completed the CPS exam? Which one?
74. Write a short compiled module which selects random numbers; and what function is used to call your customized compiled module?
75. What’s the purpose of the wrun.ini file?
All the answers to these interview questions are given in the WinRunner User Guide (PDF)& WinRunner Tutorial (PDF) which comes along with WinRunner License Version.

Load Testing interview questions:

1.What criteria would you use to select Web transactions for

load testing?

2.For what purpose are virtual users created?

3.Why it is recommended to add verification checks to your

 all your scenarios?

4.In what situation would you want to parameterize a

text verification check?

5.Why do you need to parameterize fields in your virtual user script?

6.What are the reasons why parameterization is necessary when

 load testing  the Web server and the database server?

7.How can data caching have a negative effect on load testing results?

8.What usually indicates that your virtual user script has

 dynamic data that is dependent on you parameterized fields?

9.What are the benefits of creating multiple actions within

any virtual user script?

10. What is a Load Test Results Summary Report?   General interview questions QA for Software testers and QA professionals: 

1.  What types of documents would you need for QA, QC, and Software Testing?

2.  What did you include in a test plan? 

3.  Describe any bug you remember.

4.  What is the purpose of the software testing?

5.  What do you like (not like) in this job? 

6.  What is QA (quality assurance)?

7.  What is the difference between QA and software testing?    Read the answer for this 
interview question    for software testers

8.  How do you scope, organize, and execute a test project?

9.  What is the role of QA in a development project? 

10. What is the role of QA in a company that produces software?

11. Define quality for me as you understand it

12. Describe to me the difference between validation and verification.

13. Describe to me what you see as a process. Not a particular process, just the basics of having a process.

14. Describe to me when you would consider employing a failure mode and effect analysis.

15. Describe to me the Software Development Life Cycle as you would define it.

16. What are the properties of a good requirement? 

17. How do you differentiate the roles of Quality Assurance Manager and Project Manager?

18. Tell me about any quality efforts you have overseen or
implemented. Describe some of the challenges you faced and how you
overcame them. 
19. How do you deal with environments that are hostile to quality change efforts?

20. In general, how do you see automation fitting into the overall process of testing? 

21. How do you promote the concept of phase containment and defect prevention? 

22. If you come onboard, give me a general idea of what your first overall tasks will be as far as starting a quality effort.

23. What kinds of software testing have you done?

24. Have you ever created a test plan? 

25. Have you ever written test cases or did you just execute those written by others?

26. What did your base your test cases?

27. How do you determine what to test? 

28. How do you decide when you have 'tested enough?' 

29. How do you test if you have minimal or no documentation about the product?

30. Describe me to the basic elements you put in a defect report?

31. How do you perform regression testing of software? 

32. At what stage of the life cycle does testing begin in your opinion? 

33. How do you analyze your test results? What metrics do you try to provide?

34. Realising you won't be able to test everything - how do you decide what to test first? 

35. Where do you get your expected results? 

36. If automating - what is your process for determining what to automate and in what order?

37. In the past, I have been asked to verbally start mapping out a
test plan for a common situation, such as an ATM. The interviewer might
say, "Just thinking out loud, if you were tasked to test an ATM, what
items might you test plan include?" These type questions are not meant
to be answered conclusively, but it is a good way for the interviewer
to see how you approach the task.

38. If you're given a program that will average student grades, what kinds of inputs would you use?

39. Tell me about the best bug you ever found.

40. What made you pick software testing over another career? 

41. What is the exact difference between Integration & System testing, give me examples with your project.

42. How did you go about software testing a project?

43. When should software testing start in a project? Why?

44. How do you go about testing a web application?

45. Difference between Black & White box software testing

46. What is Configuration management? Tools used?

47. What do you plan to become after say 2-5yrs (Ex: QA Manager, Why?)

48. Would you like to work in a team or alone, why?

49. Give me 5 strong & weak points of yours

50. Why do you want to join our company?

51. When should software testing be stopped?

52. What sort of things would you put down in a bug report? 

53. Who in the company is responsible for Quality?

54. Who defines quality? 

55. What is an equivalence class? 

56. Is a "A fast database retrieval rate" a testable requirement? 

57. Should we test every possible combination/scenario for a program? 

58. What criteria do you use when determining when to automate a test or leave it manual? 

59. When do you start developing your automation tests? 

60. Discuss what test metrics you feel are important to publish an organization?

61. In case anybody cares, here are the questions that I will be asking: 

62. Describe the role that QA plays in the software lifecycle. 

63. What should Development require of QA? 

64. What should QA require of Development? 

65. How would you define a "bug?" 

66. Give me an example of the best and worst experiences you've had with QA. 

67. How does unit testing play a role in the development / software lifecycle? 

68. Explain some techniques for developing software components with respect to testability. 

69. Describe a past experience with implementing a test harness in the development of software. 

70. Have you ever worked with QA in developing test tools? Explain the participation 

Development should have with QA in leveraging such test tools for QA use. 

71. Give me some examples of how you have participated in Integration Testing. 

72. How would you describe the involvement you have had with the bug-fix cycle between Development and QA?

72. What is unit testing?

73. Describe your personal software development process.

74. How do you know when your code has met specifications?

75. How do you know your code has met specifications when there are no specifications?

76. Describe your experiences with code analyzers.

77. How do you feel about cyclomatic complexity?

78. Who should test your code?

79.How do you survive chaos?

80. What processes/methodologies are you familiar with?

81. What type of documents would you need for  QA/QC/Software Testing?

82. How can you use technology to solve problem?

83. What type of metrics would you use?

84. How to find that tools work well with your existing system?

85. What automated tools are you familiar with?

86. How well you work with a team?

87. How would you ensure 100% coverage during software testing?

88. How would you build a test team?

89. What problem you have right now or in the past? How you solved it?

90. What you will do during the first day of job? 

91. What would you like to do five years from now?

92. Tell me about the worst boss you've ever had.

93. What are your greatest weaknesses?

94. What are your strengths?

95. What is a successful product?

96. What do you like about Windows?

97. What is good code?

98. Who is Kent Beck, Dr Grace Hopper, Dennis Ritchie?

99. What are basic, core, practises for a QA specialist?

100. What do you like about QA?

101. What has not worked well in your previous QA experience and what would you change?

102. How you will begin to improve the QA process?

103. What is the difference between QA and QC?

104. What is UML and how to use it for software testing?

105. What is CMM and CMMI? What is the difference?

106. What do you like about computers?

107. Do you have a favourite QA book? More than one? Which ones? And why.

108. What is the responsibility of programmers vs QA?

109.What are the properties of a good requirement?

110.Ho to do test if we have minimal or no documentation about the product? 

111.What are all the basic elements in a defect report? 

112.Is an "A fast database retrieval rate" a testable requirement?

113.Why should you care about objects and object-oriented testing?

114. What does 100% statement coverage mean? 

115. How do you perform configuration management with typical revision 
control systems? 

116. What is code coverage?

117. What types of code coverage do you know?

118. What tools can be used for code coverage analysis?

119. Is any graph is used for code coverage analysis? 

120. At what stage of the development cycle software errors are least costly to correct?

121. What can you tell about the project if during testing you found 80 bugs in it?

122. How to monitor test progress?

123. Describe a few reasons that a bug might not be fixed.

124. What are the possible states of software bug�s life cycle?

125. What books about QA (software testing) did you read?

126. What type of testing based specifically on a program code?

127. What type of testing based on any document that describes the "structure of the software"?

128. Please describe test design techniques like: state-transition diagrams, decision tables, activity diagrams.

129. Describe business process testing and what test design technique would you use for it?     Good interview questions QA from Cem Kaner article: "Recruiting testers" December 1999

1.  What is software quality assurance? 

2.  What is the value of a testing group? How do you justify your work and budget? 

3.  What is the role of the test group vis-à­¶is documentation, tech support, and so forth? 

4.  How much interaction with users should testers have, and why? 

5.  How should you learn about problems discovered in the field, and what should you learn from those problems? 

6.  What are the roles of glass-box and black-box testing tools? 

7.  What issues come up in test automation, and how do you manage them? 

8.  What development model should programmers and the test group use? 

9.  How do you get programmers to build testability support into their code? 

10. What is the role of a bug tracking system? 

11. What are the key challenges of software testing? 

12. Have you ever completely tested any part of a product? How? 

13. Have you done exploratory or specification-driven testing? 

14. Should every business test its software the same way? 

15. Discuss the economics of automation and the role of metrics in testing. 

16. Describe components of a typical test plan, such as tools for
interactive products and for database products, as well as
cause-and-effect graphs and data-flow diagrams. 
17. When have you had to focus on data integrity? 

18. What are some of the typical bugs you encountered in your last assignment? 

19. How do you prioritize testing tasks within a project? 

20. How do you develop a test plan and schedule? Describe bottom-up and top-down approaches. 

Here are some interview questions you might be asked on a job interview for a testing opening: (sample from MU COSC 198 Software Testing by Dr. Corliss)

  1. Why did you ever become involved in QA/software testing?
  2. What is the software testing lifecycle and explain each of its phases?
  3. What is the difference between testing and QA (Quality Assurance)?
  4. What is Negative testing?
  5. What was a problem you had in your previous assignment (testing if possible)? How did you resolve it?
  6. What are two of your strengths that you will bring to our QA/testing team?
  7. How would you define (QA) Quality Assurance?
  8. What do you like most about Quality Assurance/Software Testing?
  9. What do you like least about Quality Assurance/Testing?
  10. What is the Waterfall Development Method and do you agree with all the steps?
  11. What is the V-Model Development Method and do you agree with this model?
  12. What is the Capability Maturity Model (CMM)? At what CMM level were the last few companies you worked?
  13. What is a “Good Software Tester”?
  14. Could you tell me two things you did in your previous assignment (QA/Testing related hopefully) that you are proud of?
  15. List 5 words that best describe your strengths.
  16. What are two of your weaknesses?
  17. What methodologies have you used to develop test cases?
  18. In an application currently in production, one module of code is being modified. Is it necessary to re- test the whole application or is it enough to just test functionality associated with that module?
  19. Define each of the following and explain how each relates to the other: Unit, System, and Integration testing.
  20. Define Verification and Validation. Explain the differences between the two.
  21. Explain the differences between White-box, Gray-box, and Black-box testing.
  22. How do you go about going into a new organization? How do you assimilate?
  23. Define the following and explain their usefulness: Change Management, Configuration Management, Version Control, and Defect Tracking.
  24. What is ISO 9000? Have you ever been in an ISO shop?
  25. When are you done testing?
  26. What is the difference between a test strategy and a test plan?
  27. What is ISO 9003? Why is it important
  28. What are ISO standards? Why are they important?
  29. What is IEEE 829? (This standard is important for Software Test Documentation-Why?)
  30. What is IEEE? Why is it important?
  31. Do you support automated testing? Why?
  32. We have a testing assignment that is time-driven. Do you think automated tests are the best solution?
  33. What is your experience with change control? Our development team has only 10 members. Do you think managing change is such a big deal for us?
  34. Are reusable test cases a big plus of automated testing and explain why.
  35. Can you build a good audit trail using Compuware’s QA Center products. Explain why.

Questions to ask during an interview

  1. What is the structure of the company?
  2. Who is going to do the interview-possible background information of interviewer?
  3. What is the employer’s environment (platforms, tools, etc.)?
  4. What are the employer’s methods and processes used in software arena?
  5. What is the employer’s philosophy?
  6. What is the project all about you are interviewing for-as much information as possible.
  7. Any terminologies that the company may use.
  8. What is the structure of the software testing team?
  9. What are the responsibilities of the software testing team members?
  10. How many computers are in the software testing lab?
  11. What kinds of software testing tools are installed in the software testing lab?
  12. What is the ratio between software developers and testers in the company?
  13. What development and QA methodologies is the company using?

  1. January 20, 2008 at 3:26 am

    Cannot answer all of them.
    But you should give the answers.

    Frederic Torres
    Web Testing With C# or VB.NET

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