Docker - Intro to virtualization and containers - multichoice questions

Question 1

How does the docker client communicate with the docker server on the same machine?

• via UNIX socket
• via TCP socket.
• via HTTP request/response.
• None of the above.

Question 2

Given the below output to the command docker ps, what is the most likely reason(s) for the error?

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

• The docker client is not running.
• The docker daemon is not running.
• The user cannot write to /var/run/docker.sock.
• The user cannot read the daemon's answer from /var/run/docker.sock.

Question 3

Every Linux container can:

• Kill other processes.
• Execute system calls.
• Use the CPU like any other processes.
• Access the host machine's file system.

Question 4

X is an abstract version of a computer, while Y is an abstract version of an application.

• Containers, Virtual machines.
• Virtual machines, Bare metal.
• Virtual machines, containers.
• Base metal, Containers.

Question 5

Which of the following resources is shared by all containers?

• Libraries
• Kernel
• Application code
• Software running on the OS system.