Software Engineering Software Testing and Quality Assurance

Question 1

Which type of testing verifies that individual units or components of a software system work correctly in isolation?

Accepted Answer

Unit Testing

Answer

Integration Testing

Answer

System Testing

Answer

Acceptance Testing

Question 2

What is the primary purpose of regression testing?

Accepted Answer

Ensure that existing functionality still works after changes

Answer

Test new features only

Answer

Test performance under load

Answer

Verify security vulnerabilities

Question 3

In Test-Driven Development (TDD), what is the correct order of steps?

Accepted Answer

Write test, write code, refactor

Answer

Write code, write test, refactor

Answer

Write code, refactor, write test

Answer

Refactor, write test, write code

Question 4

Which testing technique tests the software without knowledge of its internal structure?

Accepted Answer

Black-box testing

Answer

White-box testing

Answer

Gray-box testing

Answer

Glass-box testing

Question 5

What is a 'test double' in software testing?

Accepted Answer

A generic term for objects that stand in for real objects during testing

Answer

Running the same test twice

Answer

Two testers reviewing the same code

Answer

A test that covers two requirements

Question 6

Which metric measures the percentage of source code executed by a test suite?

Accepted Answer

Test coverage (code coverage)

Answer

Defect density

Answer

Mean time to failure

Answer

Defect removal efficiency