Behavioral S/W Quality Assurance Interview Questions & Answers:

1. If the pseudo code below were a programming language ,how many tests are required to achieve 100% statement coverage?
1.if x=3 then
2. display_messagex;
3. if y=2 then
4. display_messagey;
5. else
6. display_messagez;
7.else
8. display_messagez;

C. 3

But I want to know why 3 test cases to cover 100% Statement coverage. Anyone please explain.
Thanks

2. Explain Coverage measurement
a. is nothing to do with testing
b. is a partial measure of test thoroughness
c. branch coverage should be mandatory for all software
d. can only be applied at unit or module testing, not at system testing

b. is a partial measure of test thoroughness

3. Explain Which of the following is NOT a type of non-functional test?
a. State-Transition
b. Usability
c. Performance
d. Security

a. State-Transition

4. Explain What is the important criterion in deciding what testing technique to use?
a. how well you know a particular technique
b. the objective of the test
c. how appropriate the technique is for testing the application
d. whether there is a tool to support the technique

b. the objective of the test

5. Tell me What is Agile Testing?

Testing practice for projects using agile methodologies, treating development as the customer of testing and emphasizing a test-first design paradigm.

6. Can you explain What is Acceptance Testing?

Testing conducted to enable a user/customer to determine whether to accept a software product. Normally performed to validate the software meets a set of agreed acceptance criteria.

7. Explain What is Ad Hoc Testing?

A testing phase where the tester tries to 'break' the system by randomly trying the system's functionality. Can include negative testing as well.

8. Explain When should you stop testing?
a. when time for testing has run out.
b. when all planned tests have been run
c. when the test completion criteria have been met
d. when no faults have been found by the tests run

c. when the test completion criteria have been met

9. Explain Which of the following is a black box design technique?
a. statement testing
b. equivalence partitioning
c. error- guessing
d. usability testing

b. equivalence partitioning

10. Explain Which is not true-The black box tester
a. should be able to understand a functional specification or requirements document
b. should be able to understand the source code.
c. is highly motivated to find faults
d. is creative to find the system?s weaknesses

b. should be able to understand the source code.

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11. Explain What is Basis Path Testing?

A white box test case design technique that uses the algorithmic flow of the program to design tests.

12. Using the same specifications as question 29, which of the following covers the MOST boundary values?
a. 9,10,11,22
b. 9,10,21,22
c. 10,11,21,22
d. 10,11,20,21

b. 9,10,21,22

13. Explain which of the following statements is not true
a. performance testing can be done during unit testing as well as during the testing of whole system
b. The acceptance test does not necessarily include a regression test
c. Verification activities should not involve testers (reviews, inspections etc)
d. Test environments should be as similar to production environments as possible

c. Verification activities should not involve testers (reviews, inspections etc)

14. Explain The later in the development life cycle a fault is discovered, the more expensive it is to fix. why?
a. the documentation is poor, so it takes longer to find out what the software is doing.
b. wages are rising
c. the fault has been built into more documentation,code,tests, etc
d. none of the above

c. the fault has been built into more documentation,code,tests, etc

15. Explain Which of the following tools would you use to detect a memory leak?
a. State analysis
b. Coverage analysis
c. Dynamic analysis
d. Memory analysis

c. Dynamic analysis

16. Explain Which of the following is NOT a standard related to testing?
a. IEEE829
b. IEEE610
c. BS7925-1
d. BS7925-2

b. IEEE610

17. Explain What is the main reason for testing software before releasing it?
a. to show that system will work after release
b. to decide when the software is of sufficient quality to release
c. to find as many bugs as possible before release
d. to give information for a risk based decision about release

d. to give information for a risk based decision about release

18. Explain which of the following is the component test standard?

a. IEEE 829
b. IEEE 610
c. BS7925-1
d. BS7925-2

d. BS7925-2

19. Explain which of the following statements are true?
a. Faults in program specifications are the most expensive to fix.
b. Faults in code are the most expensive to fix.
c. Faults in requirements are the most expensive to fix
d. Faults in designs are the most expensive to fix.

c. Faults in requirements are the most expensive to fix

20. Suppose If the pseudocode below were a programming language ,how many tests are required to achieve 100% statement coverage?
1.If x=3 then
2. Display_messageX;
3. If y=2 then
4. Display_messageY;
5. Else
6. Display_messageZ;
7.Else
8. Display_messageZ;
a. 1
b. 2
c. 3
d. 4

c. 3

21. Explain Which of the following is the odd one out?
a. white box
b. glass box
c. structural
d. functional

d. functional

22. Explain Which of the following is not the integration strategy?
a. Design based
b. Big-bang
c. Bottom-up
d. Top-down

a. Design based

23. When reporting faults found to developers, testers should be:
a. as polite, constructive and helpful as possible
b. firm about insisting that a bug is not a ?feature? if it should be fixed
c. diplomatic, sensitive to the way they may react to criticism
d. All of the above

d. All of the above

24. Testware(test cases, test dataset)
a. needs configuration management just like requirements, design and code
b. should be newly constructed for each new version of the software
c. is needed only until the software is released into production or use
d. does not need to be documented and commented, as it does not form part of the released
software system

a. needs configuration management just like requirements, design and code

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25. Using the same code example as question 17,how many tests are required to achieve 100% branch/decision coverage?
a. 1
b. 2
c. 3
d. 4

c. 3

26. Increasing the quality of the software, by better development methods, will affect the time needed for testing (the test phases) by:
a. reducing test time
b. no change
c. increasing test time
d. cant say

a. reducing test time

27. Suppose A program with high cyclometic complexity is almost likely to be:
a. Large
b. Small
c. Difficult to write
d. Difficult to test

d. Difficult to test

28. Suppose IF YOU HAVE BEEN GIVEN THE RESPONSIBILITY TO ELICIT REQUIREMENTS FROM A CUSTOMER WHO TELL YOU HE IS TOO BUSY TO MEET WITH YOU. WHAT SHOULD YOU DO?

Create a questionaire and try to get as much information from the customer as possible.But be sure to make the questionarie more objective rather than subjective.
based on this questionaire have another set of questions formulated in continuation to answers provided to the first questioanire, this way you can make your understanding more concrete on the requirments and get what you are looking for in a few iterations of requestioning.

29. Suppose A program validates a numeric field as follows:
values less than 10 are rejected, values between 10 and 21 are accepted, values greater than or equal to 22 are rejected

which of the following input values cover all of the equivalence partitions?
a. 10,11,21
b. 3,20,21
c. 3,10,22
d. 10,21,22

c. 3,10,22

30. Explain Which of the following is a static test?
a. code inspection
b. coverage analysis
c. usability assessment
d. installation test

a. code inspection

31. In which order should tests be run?
a. the most important tests first
b. the most difficult tests first(to allow maximum time for fixing)
c. the easiest tests first(to give initial confidence)
d. the order they are thought of

a. the most important tests first

32. Explain Which of the following is true?
a. Component testing should be black box, system testing should be white box.
b. if u find a lot of bugs in testing, you should not be very confident about the quality of software
c. the fewer bugs you find,the better your testing was
d. the more tests you run, the more bugs you will find.

b. if u find a lot of bugs in testing, you should not be very confident about the quality of software

33. Faults found by users are due to:
a. Poor quality software
b. Poor software and poor testing
c. bad luck
d. insufficient time for testing

b. Poor software and poor testing

34. What is A test design technique is
a. a process for selecting test cases
b. a process for determining expected outputs
c. a way to measure the quality of software
d. a way to measure in a test plan what has to be done

a. a process for selecting test cases