CDM DevOps Principles & Culture 5

Question 1

Which DevOps practice involves automatically validating code quality, security, and tests on every commit?

Accepted Answer

Continuous integration (CI)

Answer

CI automatically builds and validates every commit against a shared mainline, catching integration issues early.

Question 2

The concept of 'immutable infrastructure' means that servers are never modified after deployment; instead they are replaced. What DevOps benefit does this primarily provide?

Accepted Answer

Consistent, reproducible environments that eliminate configuration drift

Answer

Immutable infrastructure eliminates configuration drift by replacing servers rather than patching them, ensuring environments stay consistent.

Question 3

In a DevOps culture, who is ultimately responsible for the quality and reliability of a software service?

Accepted Answer

The entire cross-functional team collectively

Answer

DevOps promotes shared ownership, where the entire team — developers, ops, QA, and security — is collectively responsible for quality.

Question 4

Which statement best describes the relationship between Agile and DevOps?

Accepted Answer

DevOps extends Agile principles beyond development into operations and delivery

Answer

DevOps extends Agile's iterative, collaborative principles to cover the full software delivery lifecycle including operations.

Question 5

What does 'observability' mean in a DevOps context?

Accepted Answer

The ability to understand a system's internal state from its external outputs

Answer

Observability encompasses logs, metrics, and traces to allow teams to understand and debug complex system behavior from external signals.

(CDM) Certified DevOps Master Practice Test

(CDM) Certified DevOps Master Practice Test

CDM DevOps Principles & Culture 5