Docker quiz 221

Vikrant is a software developer who needs to deploy his applications consistently across different environments. He is considering various tools to help him with this task. What is the primary role of Docker?

• A container platform

• A cloud service provider

• A virtual machine manager

• A container orchestration tool

Which command is used to stop a running Docker container?

• docker exit

• docker kill

• docker remove

• docker stop

What does the 'docker ps' command do?

• Lists all Docker images

• Lists all running containers

• Removes stopped containers

• Pulls images from Docker Hub

What is a Dockerfile used for?

• To run containers

• To create Docker images

• To manage Docker networks

• To install Docker

Which of the following is a benefit of using Docker?

• Slower deployment

• Increased hardware requirements

• Portability

• Complex setup

What is the command to remove a Docker image?

• docker clean

• docker remove

• docker rmi

• docker delete

What does the 'FROM' instruction in a Dockerfile specify?

• The environment variables

• The base image

• The command to run

• The exposed ports

Which command is used to build a Docker image?

• docker create

• docker build

• docker compile

• docker generate

What is the purpose of Docker containers?

• To run applications in isolated environments

• To monitor system performance

• To store data persistently

• To manage network traffic

What is the main difference between containers and virtual machines?

• Containers require more resources than VMs

• VMs are faster to start than containers

• Containers share the host OS kernel

• Containers are heavier than VMs