B.S.W.E. Bachelor of Software Engineering Practice 3

Question 1

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

Accepted Answer

Code coverage

Answer

Code coverage measures what fraction of lines, branches, or paths are exercised by automated tests, helping identify untested code.

Question 2

A developer notices that three classes all duplicate the same 20-line validation logic. Which refactoring best addresses this?

Accepted Answer

Move Method to a new shared utility class

Answer

Moving the duplicated validation to a shared utility class eliminates repetition and ensures a single point of maintenance for that logic.

Question 3

In agile sprint planning, what does 'velocity' represent?

Accepted Answer

The average amount of work completed in past sprints

Answer

Velocity is the average number of story points (or units of work) a team completes per sprint, used to forecast future delivery.

Question 4

Which design pattern allows new behaviors to be added to objects at runtime without altering their class?

Accepted Answer

Decorator

Answer

The Decorator pattern wraps objects in additional decorator objects, adding behavior dynamically while keeping the original class unchanged.

Question 5

What is the primary purpose of a staging environment in a software delivery pipeline?

Accepted Answer

To mirror production for final validation before release

Answer

A staging environment replicates production conditions so teams can validate releases, run integration tests, and catch issues before going live.

B.S.W.E. Bachelor of Software Engineering Practice Test