CDM Continuous Integration & Continuous Delivery 2

Question 1

Which branching strategy is most compatible with Continuous Integration because it minimizes long-lived feature branches?

Accepted Answer

Trunk-Based Development

Answer

Trunk-Based Development keeps all developers committing to a single mainline branch frequently, which is the ideal model for true CI.

Question 2

What is the primary purpose of a 'build artifact' produced during a CI pipeline?

Accepted Answer

To provide a deployable, versioned output that can be promoted through environments

Answer

A build artifact is an immutable, versioned package produced once and promoted through staging environments all the way to production.

Question 3

A CD pipeline deploys successfully to staging but fails in production due to environment-specific configuration. What practice best prevents this?

Accepted Answer

Externalizing configuration and using environment variables injected at runtime

Answer

Externalizing configuration (e.g., via environment variables or a config service) ensures the same artifact runs identically across all environments.

Question 4

What does 'shift-left testing' mean in the context of a CI/CD pipeline?

Accepted Answer

Introducing testing earlier in the development lifecycle to catch defects sooner

Answer

Shift-left testing means moving quality checks earlier in the pipeline (toward development) so defects are caught when they are cheapest to fix.

Question 5

Which metric directly measures the speed of a CI/CD pipeline from code commit to production deployment?

Accepted Answer

Lead Time for Changes

Answer

Lead Time for Changes measures the elapsed time from when a code commit is made until it reaches production, directly reflecting pipeline speed.

(CDM) Certified DevOps Master Practice Test