KCNA Online Practice Questions and Answers

What do control groups provide when it come to containers

A. Permission

B. Image Storage

C. Isolation

D. Logging

How can you achieve cost optimization in the cloud environment?

A. Use On Demand instances

B. Use Spot Instances

C. Use Reserved Instances

D. Use Bare Metal

Which of the following is NOT a Kubernetes component?

A. Scheduler

B. Docker

C. Cloud Controller manager

D. Kube-proxy

Which CNCF project is the dominant project with respect to container registries

A. Envoy

B. Harbor

C. Kubernetes

D. Rook

Which of the following is an example of vertical scaling?

A. Using cluster autoscaler

B. Adding more resources (memory and/or cpu) to a kubernetes node

C. Adding more nodes to kubernetes cluster

D. Adding more replica pods to a deployment

What cloud-native construct does a kubernetes pod wrap?

A. Container

B. Virtual Machine (VM)

C. side car process

D. Docker image

Which of the following factors does scheduling take into account when selecting a Node?

A. How many replicas there are in a Deployment

B. Services

C. Resource requirements

D. The number of existing Pods on a Node

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

What is the command used to scale the application?

A. kubectl run

B. kubectl explain

C. kubectl scale

How to create deployment name app-dep, image=nginx, and replicas 5 using imperative command?

A. kubectl create app-dep deployment --image=nginx --replicas=5

B. kubectl create deployment app-dep --image=nginx --replicas=5

C. kubectl create app-dep deployment --replicas=5 --image=nginx