CAST Software Testing Fundamentals 3

Question 1

What distinguishes verification from validation?

Accepted Answer

Verification checks if we built it right; validation checks if we built the right thing

Answer

Verification confirms the product meets specifications, while validation confirms it meets user needs.

Question 2

Which level of testing checks the interaction between integrated modules?

Accepted Answer

Integration testing

Answer

Integration testing verifies that combined modules work together correctly through their interfaces.

Question 3

What is a test oracle?

Accepted Answer

A mechanism for determining the expected result of a test

Answer

A test oracle is the source used to decide whether a test's actual output is correct.

Question 4

Which statement about exhaustive testing is correct?

Accepted Answer

It is usually impractical due to too many possible inputs

Answer

Testing every possible input combination is generally infeasible, so testing focuses on representative cases.

Question 5

A defect found during testing but caused by a missing requirement is best classified as a problem in which phase?

Accepted Answer

Requirements

Answer

A missing requirement originates in the requirements phase, even if discovered later during testing.

CAST Test Practice Test