How well do you know Docker components and services?

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With Docker containers moving into more enterprise IT shops, it’s imperative to grasp how the technology works. Test your knowledge of Docker components and services with this quiz.

Docker is a hot topic in IT operations. It’s not only dominating conversations, but taking over the containerization market as well. The open source Docker service expanded in 2015 to offer a paid enterprise edition, and has become the most commonly used containerization software in this nascent technological market.

Docker generally refers to Docker Engine. Docker is a platform for encapsulating and running application code quickly. Docker Engine is the underlying software technology, atop which components run numerous container services, from development to maintenance to storage.

Despite being the most widely used container service, Docker features such an array of components that they can be difficult to keep straight. Take this quiz to see how well you know Docker components and services.

Quiz

QUESTION 1

Which of the following OSes does Docker run on?

Linux
Windows
MacOS
All of the above

QUESTION 2

Docker containerd is a core container runtime that manages what?

The container lifecycle of its Linux or Windows host system
Container and data security
Log analysis and reporting
The resources necessary to run the container

QUESTION 3

What does Docker swarm mode do?

Clusters container nodes
Integrates orchestration capabilities
Exists natively on Docker Engine, between the OS and container images
All of the above

QUESTION 4

What can an IT shop do with Docker Compose and swarm mode?

Construct and define multi-container applications
Provide analysis reports of container orchestration performance
Collect data on speed and efficiency and recommend alterations
Automatically earn group coffee breaks for each container image written

QUESTION 5

Which of the following best describes Docker Hub?

A social message board for users to communicate
A free, downloadable repository of preconfigured containers
A centralized help service for users
A crowd-sourced FAQ to increase Docker awareness

QUESTION 6

Where does Docker Datacenter store container registries?

In Docker Cloud
On a user-specified public cloud service
On-premises
On Windows Server storage volumes

QUESTION 7

Which of the following is NOT part of Docker Cloud?

Build and testing facilities for Dockerized application images
Tools to manage host infrastructure
Swarm provisioning to various cloud providers
Automated legacy application code conversion into microservices

QUESTION 8

What is a Dockerfile?

Any folder or document to run Docker components
Any report or document that Docker components produce
A template used to describe the build of an image
A developer who loves Docker and containerization, frequently espousing its virtues

QUESTION 9

How does Docker Machine manage virtual hosts that use Docker?

Command line
Graphical user interface
Docker Datacenter
Any of the above

QUESTION 10

Bonus round! Where does Docker Notary store publishers’ trusted content collections?

Docker Cloud
Docker Hub repository
Users’ on-premises data centers
I thought notaries needed special stamp

How did you do on this quiz? Let us know in the comments. Not sure about an answer? Send us an email at contact@BestDevOps.com to discuss any of these answers and the Docker components covered.

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