CAST Test Design Techniques 3

Question 1

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

Accepted Answer

Statement coverage

Answer

Equivalence partitioning

Answer

Use case testing

Answer

Error guessing

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

The number of equivalence partitions in the input domain

Answer

The total number of statements executed during testing

Answer

The number of valid transitions in a state machine

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

Every statement is executed at least once

Answer

Every path through the program is executed

Answer

Every condition in a compound decision is evaluated independently

Question 4

Which relationship between statement coverage and branch coverage is CORRECT?

Accepted Answer

100% branch coverage guarantees 100% statement coverage

Answer

100% statement coverage guarantees 100% branch coverage

Answer

They are independent metrics with no relationship

Answer

Branch coverage is always a subset of statement coverage

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

Statement coverage

Answer

Cyclomatic complexity-based testing

Answer

Control flow graph analysis

Question 6

When using boundary value analysis, the THREE-POINT approach tests:

Accepted Answer

The boundary value, one below it, and one above it

Answer

Only values inside the valid partition

Answer

The minimum, midpoint, and maximum of each partition

Answer

Only the first and last valid values

Question 7

Which statement BEST distinguishes black-box testing from white-box testing?

Accepted Answer

Black-box testing derives tests from the specification without knowledge of internal implementation

Answer

Black-box testing can only be performed by developers

Answer

White-box testing uses only manual techniques

Answer

Black-box testing always achieves higher code coverage than white-box testing