Cloud Engineer Technology & Digital Applications 3

Question 1

A development team uses feature flags to enable new functionality for a subset of users before a full rollout. What deployment pattern does this represent?

Accepted Answer

Canary release

Answer

A canary release gradually exposes new features to a small percentage of users to detect issues before full rollout.

Question 2

Which protocol does gRPC use as its transport layer, enabling multiplexed streams over a single connection?

Accepted Answer

HTTP/2

Answer

gRPC is built on HTTP/2, which supports multiplexing, header compression, and bidirectional streaming over a single connection.

Question 3

A cloud engineer must ensure that a critical production database is protected against accidental deletion. Which AWS feature directly prevents this?

Accepted Answer

Enabling Deletion Protection on the RDS instance

Answer

RDS Deletion Protection is a flag that prevents the instance from being deleted via API or console until the flag is explicitly disabled.

Question 4

In a CI/CD pipeline, what is the purpose of a 'smoke test' stage immediately after deployment?

Accepted Answer

Perform a quick sanity check that the deployed application is alive and basic paths work

Answer

Smoke tests verify that core functionality is operational post-deployment before investing in deeper test suites.

Question 5

Which Kubernetes resource is used to store non-sensitive configuration data as key-value pairs and inject it into pods?

Accepted Answer

ConfigMap

Answer

ConfigMaps store non-sensitive configuration data and can be mounted as volumes or exposed as environment variables in pods.

Cloud Engineer Practice Test

Cloud Engineer Practice Test

Cloud Engineer Technology & Digital Applications 3