CAST Test Design Techniques 3

Question 1

Which of the following is a WHITE-BOX test design technique?

Accepted Answer

Statement coverage

Answer

Statement coverage is a white-box technique that uses knowledge of the internal code structure to ensure every executable statement is executed at least once.

Question 2

What is cyclomatic complexity used to measure in white-box testing?

Accepted Answer

The minimum number of independent paths through the code

Answer

Cyclomatic complexity quantifies the number of linearly independent paths through a program's control flow graph, which determines the minimum number of test cases needed for full path coverage.

Question 3

Branch coverage (decision coverage) requires that:

Accepted Answer

Every branch (true and false outcome) of each decision is executed at least once

Answer

Branch coverage ensures that both the true and false outcomes of every decision point in the code are exercised at least once, catching more defects than statement coverage alone.

Question 4

Which relationship between statement coverage and branch coverage is CORRECT?

Accepted Answer

100% branch coverage guarantees 100% statement coverage

Answer

Achieving 100% branch coverage guarantees 100% statement coverage because exercising all branches necessarily executes all reachable statements.

Question 5

Which black-box test design technique is BEST for testing a system that has a large number of input parameters with discrete values?

Accepted Answer

Pairwise (combinatorial) testing

Answer

Pairwise testing efficiently handles large numbers of discrete input parameters by ensuring every pair of parameter values is covered, without the explosion of full combinatorial testing.

(CAST) Certified Associate in Software Testing Practice Test

(CAST) Certified Associate in Software Testing Practice Test

CAST Test Design Techniques 3