Algorithms Quality Control & Assurance 2

Question 1

Which testing technique executes code without knowledge of internal structure, focusing solely on inputs and outputs?

Accepted Answer

Black-box testing

Answer

Black-box testing treats the system as opaque, validating behavior purely from external inputs and expected outputs.

Question 2

In algorithm quality assurance, what does 'code coverage' measure?

Accepted Answer

Percentage of source code executed during testing

Answer

Code coverage measures what fraction of the codebase is actually executed by the test suite, guiding where more tests are needed.

Question 3

What is a 'regression test' in software quality assurance?

Accepted Answer

A test re-run after changes to confirm existing features still work

Answer

Regression tests re-execute previously passing tests after a code change to ensure new modifications haven't broken existing functionality.

Question 4

Which property of a good test suite ensures each test case checks one specific behavior?

Accepted Answer

Atomicity

Answer

Atomic tests check a single behavior so that a failure pinpoints exactly which behavior broke, making debugging faster.

Question 5

What is the purpose of a 'smoke test' in algorithmic quality control?

Accepted Answer

To quickly verify the most critical functions work before deeper testing

Answer

Smoke tests perform a shallow check of core functionality to decide whether the build is stable enough for more thorough testing.

Algorithms Practice Test