CAST Test Design Techniques 2

Question 1

State transition testing is MOST appropriate when:

Accepted Answer

The system reacts differently depending on its current state and input events

Answer

The system behavior depends only on current inputs

Answer

The number of inputs is small enough to test exhaustively

Answer

Code coverage metrics need to be maximized

Question 2

In a state transition diagram, what does a 'transition' represent?

Accepted Answer

A movement from one state to another triggered by an event or condition

Answer

A stable condition in which the system remains

Answer

An invalid sequence of inputs

Answer

A test case that verifies system behavior

Question 3

Use case testing derives test cases from:

Accepted Answer

Interactions between actors and the system that deliver value

Answer

The internal code structure of the application

Answer

Statistical analysis of past defect data

Answer

The boundary conditions of numeric input fields

Question 4

Which coverage criterion requires that every valid and invalid transition in a state transition model be exercised at least once?

Accepted Answer

Transition coverage

Answer

State coverage

Answer

All-paths coverage

Answer

Boundary coverage

Question 5

A tester finds that a field accepts alphabetic characters when only numeric input should be allowed. Which black-box technique BEST helps design a test case to detect this flaw?

Accepted Answer

Equivalence partitioning with an invalid partition for non-numeric input

Answer

Statement coverage testing

Answer

Cyclomatic complexity analysis

Answer

Decision table with only valid conditions

Question 6

Which test design technique is SPECIFICALLY designed to handle situations where the same input can produce different outputs depending on previous inputs?

Accepted Answer

State transition testing

Answer

Equivalence partitioning

Answer

Boundary value analysis

Answer

Decision table testing

Question 7

When designing test cases using a decision table, a 'don't care' condition (marked as '-') means:

Accepted Answer

The value of that condition does not affect the rule's outcome

Answer

The condition must always be true for the rule to apply

Answer

The condition should be tested with boundary values only

Answer

The condition is invalid and should be excluded