Algorithms Quality Control & Assurance 5

Question 1

What is the 'test pyramid' model's recommendation regarding unit tests?

Accepted Answer

Unit tests should form the largest base because they are fast and cheap

Answer

The test pyramid advocates for a large base of fast, cheap unit tests, fewer integration tests, and the fewest end-to-end tests to keep the suite efficient.

Question 2

What does 'defensive programming' contribute to algorithm quality assurance?

Accepted Answer

It adds input validation and assertions to prevent incorrect states from propagating

Answer

Defensive programming anticipates invalid inputs and unexpected states, adding checks that catch problems close to their source rather than far downstream.

Question 3

Which approach in quality assurance involves injecting deliberate failures to test a system's resilience?

Accepted Answer

Chaos engineering

Answer

Chaos engineering deliberately introduces failures (killing nodes, adding latency) in controlled environments to verify that a system degrades gracefully.

Question 4

In algorithm QA, what is a 'golden master' (snapshot) test used for?

Accepted Answer

Comparing current output to a previously approved reference output

Answer

A golden master test stores a known-good output and flags any deviation, useful when the correct result is complex but stable.

Question 5

What is the purpose of 'contract testing' between algorithm microservices?

Accepted Answer

To verify that a provider's API matches the expectations of its consumers

Answer

Contract testing ensures that the interface a service provides matches what its consumers depend on, catching integration breaks without full end-to-end tests.

Algorithms Practice Test

Algorithms Practice Test

Algorithms Quality Control & Assurance 5