Linux+ V7 Container Concepts Quiz

1. Which orchestration platform is the industry standard for managing containerized applications?

Docker Compose

Kubernetes

Apache Mesos

OpenStack

2. What is the main difference between 'docker attach' and 'docker exec'?

Attach connects to main process; exec runs a new command

Exec only works on running containers

Attach creates a new container

Exec requires elevated privileges

3. In Linux container security, what does the principle of least privilege mean?

Containers run as root by default

Containers should run with minimal required permissions

All containers share the same user namespace

Network access is always blocked

4. Which of the following is NOT a benefit of container automation?

Reduced manual configuration errors

Faster application deployment

Guaranteed zero downtime

Consistent environments across systems

Submit

6. What is the purpose of a container registry?

To manage container runtime performance

To store and distribute Docker images

To monitor container logs

To configure container networking

7. Which of the following best describes container immutability?

Containers cannot be modified after creation

Images are read-only; changes are made in layers

Containers automatically restart on failure

Container data persists indefinitely

Submit

9. In container networking, what is the default bridge network used by Docker?

Host mode

Overlay mode

Docker0 bridge

Macvlan mode

10. What is a Kubernetes pod?

A collection of container images

The smallest deployable unit containing one or more containers

A network policy for containers

A storage volume for persistent data

11. What is a container in the context of Linux virtualization?

A lightweight, isolated process environment sharing the host kernel

A full virtual machine with its own operating system

A storage device for Docker images

A network interface for inter-process communication

Submit

13. What does the 'docker ps' command display?

All available Docker images

Running containers only

Stopped containers and images

Docker system statistics

14. Which command starts a new container from a Docker image?

Docker create

Docker run

Docker start

Docker build

15. What is the purpose of a Dockerfile?

To define container runtime parameters

To specify instructions for building a Docker image

To manage container networking

To store container logs

Submit

17. Which Linux kernel feature enables process isolation in containers?

Cgroups and namespaces

SELinux policies

Firewall rules

Swap partitions

18. What does a Docker image contain?

Running container processes only

Read-only layers with application code, libraries, and dependencies

Only the Linux kernel

Network configuration files

19. Which of the following is the primary advantage of containers over traditional VMs?

Better security isolation

Lower resource overhead and faster startup times

Native support for Windows applications

Automatic hardware compatibility

Linux+ V7 Introduction to Container Concepts Quiz

1. Which orchestration platform is the industry standard for managing containerized applications?

2.

What first name or nickname would you like us to use?

2. What is the main difference between 'docker attach' and 'docker exec'?

3. In Linux container security, what does the principle of least privilege mean?

4. Which of the following is NOT a benefit of container automation?

5. A ______ is a set of Kubernetes objects that define how an application should run.

6. What is the purpose of a container registry?

7. Which of the following best describes container immutability?

8. Docker Compose uses a ______ file to define multi-container applications.

9. In container networking, what is the default bridge network used by Docker?

10. What is a Kubernetes pod?

11. What is a container in the context of Linux virtualization?

12. Container ______ involves managing multiple containers across multiple hosts.

13. What does the 'docker ps' command display?

14. Which command starts a new container from a Docker image?

15. What is the purpose of a Dockerfile?

16. A Docker ______ is a read-only template used to create containers.

17. Which Linux kernel feature enables process isolation in containers?

18. What does a Docker image contain?

19. Which of the following is the primary advantage of containers over traditional VMs?