Questions

1. A single Docker image can be used on any Docker host, regardless of the architecture used.

   A. True

   B. False

2. What does Docker use to merge multiple image layers into a single filesystem?

   A. Merged filesystem

   B. NTFS filesystem

   C. EXT4 filesystem

   D. Union filesystem

3. What is the most commonly used Docker storage driver when using a Kernel that is above version 4.0?

   A. AUFS

   B. ZFS

   C. VFS

   D. Overlay2

4. When you edit a container's filesystem interactively, what layer are the changes written to?

   A. Operating system layer

   B. Bottom-most layer

   C. Container layer

   D. Ephemeral layer

5. Assuming the image contains the required binaries, what Docker command allows you to gain access to a container's bash prompt?

   A. docker shell -it <container> /bin/bash

   B. docker run -it <container> /bin/bash

   C. docker exec -it <container> /bin/bash

   D. docker spawn -it <container> /bin/bash

6. When a container is stopped, the Docker daemon will delete all traces of the container.

   A. True

   B. False

7. What command will show you a list of all containers, including any stopped containers?

   A. docker ps -all

   B. docker ps -a

   C. docker ps -list

   D. docker list all