Cloud Engineer Technology & Digital Applications 5

Question 1

Which cloud design principle recommends distributing workloads across multiple Availability Zones to survive a datacenter-level failure?

Accepted Answer

High availability through multi-AZ deployment

Answer

Deploying across multiple Availability Zones ensures the application remains operational even if an entire AZ goes offline.

Question 2

A cloud engineer uses Prometheus to collect metrics and wants to visualize them on dashboards. Which tool is the standard companion for this?

Accepted Answer

Grafana

Answer

Grafana is the de-facto visualization layer for Prometheus metrics, providing rich dashboards and alerting on top of Prometheus data sources.

Question 3

What is the purpose of a cloud 'Landing Zone'?

Accepted Answer

A pre-configured, secure, multi-account cloud environment that enforces organizational standards

Answer

A Landing Zone is a well-architected, multi-account baseline environment with governance, security, and networking guardrails pre-configured.

Question 4

A developer accidentally commits an AWS secret key to a public GitHub repository. What is the FIRST action a cloud engineer should take?

Accepted Answer

Immediately revoke or deactivate the exposed key in IAM

Answer

The exposed key must be revoked immediately because bots scan public repos in seconds and the key is already compromised.

Question 5

Which service mesh feature enables automatic mTLS between microservices without changing application code?

Accepted Answer

Sidecar proxy encryption (e.g., Istio/Envoy)

Answer

Service meshes like Istio inject sidecar proxies that handle mutual TLS encryption between services transparently, without requiring code changes.

Cloud Engineer Practice Test