A containerized application writes logs to stdout. An administrator needs to view the logs generated in the last 10 minutes to debug an issue. Which command should be used?

`docker logs --since 10m container-name`

`docker logs -f container-name`

`docker logs --tail 10 container-name`

`docker logs --until 10m container-name`

A container running a stateful application was stopped with `docker stop`. The administrator needs to restart it, but the container's data is stored in an anonymous volume. The administrator is concerned about data loss. What should the administrator do?

Run `docker cp container-name:/data /backup` and then run a new container.

Run `docker start container-name` to restart the existing container.

Run `docker commit container-name` and then run a new container from the image.

Run `docker rm container-name` and then `docker run` with a new anonymous volume.

A container named `db` was created with a named volume `db-data` mounted at /var/lib/mysql. The container was accidentally removed with `docker rm db`. The administrator needs to restore the database. What should the administrator do?

Run `docker volume rm db-data` and then create a new container.

Run `docker start db` to restart the removed container.

Run a new container with `-v db-data:/var/lib/mysql` using the same database image.

Run `docker commit db` and then run a new container from the image.

Two containers, `web` and `db`, need to communicate with each other on a custom Docker network. The `web` container is already running on the default bridge network. What should the administrator do to enable communication?

Run the `db` container on the default bridge network and use the `web` container's IP address.

Create a custom network and connect the `web` container to it, then run the `db` container on the same network.

Expose the `db` container's port on the host and have `web` connect via the host IP.

Use `docker exec` to run the `db` process inside the `web` container.

An administrator runs a container with `docker run -d -p 8080:80 --network host nginx`. The administrator expects to access the container on port 8080, but it is not working. What is the most likely reason?

The container is not running because `--network host` requires a special image.

The `-p` flag overrides host networking and maps port 8080 to 80.

With `--network host`, the `-p` flag is ignored, and the container listens directly on the host's port 80.

The container is listening on port 8080 inside, but the host firewall blocks port 80.

LPI DevOps Tools Engineer

Domain 2Objective 1

702.1 Application Container Management (weight: 5) DEVOPS-TOOLS-ENGINEER Practice Questions (Page 2)

Part of the 702 Application Container domain, which makes up ~18% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–11 in this domain), expect 2–4 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

8concepts

Questions 6–10

6application · medium
A containerized application writes logs to stdout. An administrator needs to view the logs generated in the last 10 minutes to debug an issue. Which command should be used?
Select an answer first
7expert · hard
A container running a stateful application was stopped with `docker stop`. The administrator needs to restart it, but the container's data is stored in an anonymous volume. The administrator is concerned about data loss. What should the administrator do?
Select an answer first
8expert · hard
A container named `db` was created with a named volume `db-data` mounted at /var/lib/mysql. The container was accidentally removed with `docker rm db`. The administrator needs to restore the database. What should the administrator do?
Select an answer first
9application · medium
Two containers, `web` and `db`, need to communicate with each other on a custom Docker network. The `web` container is already running on the default bridge network. What should the administrator do to enable communication?
Select an answer first
10expert · hard
An administrator runs a container with `docker run -d -p 8080:80 --network host nginx`. The administrator expects to access the container on port 8080, but it is not working. What is the most likely reason?
Select an answer first

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