KCNA Linux-Foundation Exam Questions and Free Practice Test

Question 7

How would you return all the pod data in the json format using kubectl command?

A. kubectl get pods -o json

B. kubectl get pods --all-namspaces

C. kubectl get pods -o wide

D. kubectl get pods -o jsonpath

Correct Answer:A
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#get

Question 8

Which project in this list is a leading project in the observability space?

A. Jaeger

B. Vitess

C. Argo

D. Kubernetes

Correct Answer:A
https://github.com/cncf/landscape#trail-map
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Question 9

What is etcd used for in Kubernetes?

A. Integration with cloud platforms

B. Network routing for the cluster

C. Kubernetes API security

D. Backend object storage for the Kubernetes API

Correct Answer:D
etcd serves as a distributed object store that backs the Kubernetes API.

Question 10

What is a benefits of Kubernetes federation?

A. Avoids scalability limits on pods and nodes

B. Creates highly available clusters in different regions

C. Low latency

Correct Answer:ABC

Question 11

What is horizontal scaling?

A. Creating a Deployment

B. Adding resources to existing apps and servers

C. Moving workloads from one server to another

D. Adding additional replicas of apps and servers

Correct Answer:D
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/ Text, letter Description automatically generated
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Question 12

What is the name of the Kubernetes agent that runs on each worker nodes?

A. kubelet

B. systemd

C. kube-proxy

D. pod

Correct Answer:A
https://kubernetes.io/docs/concepts/overview/components/
Graphical user interface, diagram, application Description automatically generated
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