Docker & Kubernates

If we can run docker container using docker run command, then why do we need kubernetes?

• We don't need it

• To manage multiple containers and perform deployments at the same time

If we changed only one layer in docker image, what will happen while building image?

• Entire Image will get built again

• Only updated layer will get built

Why do we call containers as light weight deployable Instances?

• Docker compresses container image of application, hence we call it as lightweight containers

• Containers have no dependency on OS and hence we call it as lightweight containers

Suppose you have docker file in your current folder. Which command is used to buid the image called 'abc'?

• docker build abc

• docker build -t abc .

• docker build -t abc

• docker run -d abc

What are the important prerequisite steps to push docker image to docker hub?

• Need to have docker hub account

• Need to have docker image created and tested on local setup

• Need to pull the latest image from docker hub repository

• Only 1 & 2

• All 1,2 & 3

Which of the following is not suited for Monolithic Architecture?

• Distributed System

• Standalone application

Which one is not part of Kubernetes architecture?

• Control plane

• Management plane

• Data plane

What is the purpose of kube-api component?

• Manages internal communication of cluster

• Exposes cluster to external internet

Which of the component assigns new workload to worker node?

• kube-schedular

• kube-controller-manager

• kube-etdc

Which encryption strategy is used for storing secret in kubernetes cluster?

• sha1

• md5

• base64

• AES encryption