What is the purpose of the -p option in the docker run command?

To publish a container's port to the host

To set the container's working directory

To specify the container's hostname

To assign a name to the container

An administrator is running a web application in a Docker container and needs to expose it on port 8080 of the host. The application listens on port 80 inside the container. Which command should the administrator use to run the container with the appropriate port mapping?

docker run --network host webapp

docker run --expose 8080 webapp

CompTIALinux+

Domain 2Objective 6

Containers XK0-006 Practice Questions (Page 4)

Part of the Services and User Management domain, which accounts for 20% of the XK0-006 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

5concepts

20%of the exam

Questions 16–20

16foundation · easy
What is the purpose of the -p option in the docker run command?
Select an answer first
17expert · medium
A system administrator is troubleshooting a Docker container that fails to start. The administrator runs 'docker logs <container-id>' and sees an error message indicating that a required environment variable is not set. The administrator wants to inspect the container's configuration to verify the environment variables that were set when the container was created. Which command should the administrator use?
Select an answer first
18foundation · easy
Which command downloads a container image from a registry such as Docker Hub?
Select an answer first
19foundation · easy
An administrator needs to view the list of currently running containers. Which command displays this information?
Select an answer first
20application · medium
An administrator is running a web application in a Docker container and needs to expose it on port 8080 of the host. The application listens on port 80 inside the container. Which command should the administrator use to run the container with the appropriate port mapping?
Select an answer first

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Containers XK0-006 Practice Questions (Page 4)

Questions 16–20

What is the purpose of the -p option in the docker run command?

Which command downloads a container image from a registry such as Docker Hub?

An administrator needs to view the list of currently running containers. Which command displays this information?

An administrator is running a web application in a Docker container and needs to expose it on port 8080 of the host. The application listens on port 80 inside the container. Which command should the administrator use to run the container with the appropriate port mapping?

Keep studying — Services and User Management