ISTQB Software Testing Quiz 3
This ISTQB Software Testing Quiz 3 assesses knowledge on boundary values, unit testing, tester objectivity, test initiation, cyclomatic complexity, and statement coverage.
- 1.
An input field takes a year of birth between 1900 and 2004 inclusive. The boundary values for testing this field are:
- A.
0, 1900, 2004, 2005
- B.
1900, 2004
- C.
1899, 1900, 2004, 2005
- D.
1899, 1900, 1901, 2003, 2004, 2005
Correct Answer
C. 1899, 1900, 2004, 2005Explanation
The valid range for the birth years is from 1900 to 2004 inclusive. The boundary values are 1900 & 2004, plus the closest invalid values on each side. These are 1899 & 2005. (Note that it isn't necessary to include 1901 or 2003 because they're no different from 1900 or 2004 as far as testing is concerned).Rate this question:
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- 2.
To test a function during component (i.e. unit) testing, the programmer has to write a _________, which calls the function to be tested and passes it test data.
- A.
Stub
- B.
Driver
- C.
Proxy
- D.
Harness
Correct Answer
B. DriverExplanation
This typically occurs when the system is being built incrementally and the individual functions are coded first.Rate this question:
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- 3.
A key reason why developers have difficulty testing their own work is:
- A.
Lack of technical documentation
- B.
Lack of test tools on the market for developers
- C.
Lack of training
- D.
Lack of objectivity
Correct Answer
D. Lack of objectivityExplanation
They are too close to their work, and with their optimistic outlook are inclined to overlook things that may cause problems.Rate this question:
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- 4.
During the software development process, at what point can the test process start?
- A.
When the code is complete.
- B.
When the design is complete.
- C.
When the software requirements have been approved.
- D.
When the first code module is ready for unit testing.
Correct Answer
C. When the software requirements have been approved.Explanation
While we want to get underway as early as possible, there isn't much point in starting until the requirements have been approved.Rate this question:
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- 5.
What is the Cyclomatic Complexity of this program fragment? IF X < Y THEN Statement 1; ELSE IF Y >= Z THEN Statement 2;END
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
B. 3Explanation
Cyclomatic Complexity is the number of independent paths through the program. The easiest way to calculate it is to add up the number of decisions and add 1 to the result. We have 2 IF tests (i.e. 2 decisions) plus 1 = 3.Rate this question:
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- 6.
Statement coverage will not check for the following:
- A.
Missing statements
- B.
Unused branches
- C.
Dead code
- D.
Unused statements
Correct Answer
A. Missing statementsExplanation
Statement coverage means we execute every statement in the code. Clearly it can't check for statements that aren't there (i.e. missing statements).Rate this question:
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Current Version
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Mar 19, 2023Quiz Edited by
ProProfs Editorial Team -
Jul 12, 2009Quiz Created by
Tmccoy
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