CKA CKA Logging and Monitoring 2

Question 1

Which component must be deployed in a cluster before `kubectl top nodes` works?

Accepted Answer

Metrics Server

Answer

The Metrics Server must be installed to aggregate resource usage data and enable `kubectl top` commands.

Question 2

What command shows CPU and memory usage for all pods in the 'production' namespace?

Accepted Answer

kubectl top pods -n production

Answer

`kubectl top pods -n <namespace>` displays real-time CPU and memory usage for pods in that namespace.

Question 3

Which flag with `kubectl top pods` breaks down usage per container instead of per pod?

Accepted Answer

--containers

Answer

The `--containers` flag shows per-container CPU and memory usage within each listed pod.

Question 4

Which Kubernetes object sets default resource limits and requests for containers within a namespace?

Accepted Answer

LimitRange

Answer

A LimitRange object defines default, min, and max resource limits and requests for containers in a namespace.

Question 5

What does a ResourceQuota object restrict in a Kubernetes namespace?

Accepted Answer

Total resource consumption and object count

Answer

ResourceQuota limits the total compute resources consumed and the number of Kubernetes objects that can exist in a namespace.

(CKA) Certified Kubernetes Administrator Practice Test