An administrator manages a host with a single LXD storage pool using the `dir` driver. A critical container `app1` must be backed up, but the pool is running low on space. The administrator wants to create a backup without consuming additional space in the same pool. Which approach is most appropriate?

Copy the container to a new storage pool on an external drive with `lxc copy app1 backup -s external-pool`.

Create a snapshot of `app1` with `lxc snapshot app1 backup`, then export the snapshot to an external location with `lxc export app1/backup /backup/app1.tar.gz`.

Use `lxc storage volume snapshot` on the container's storage volume.

Export the container directly with `lxc export app1 /backup/app1.tar.gz`.

A company runs LXD containers on a single host. They want each container to have its own MAC address and be directly reachable on the physical LAN, so that other devices on the network can connect to the containers without any NAT or port forwarding. The host's physical interface is `eth0`. What networking configuration should be used?

Create a macvlan profile attached to `eth0` and apply it to the containers.

Use the default lxdbr0 bridge and configure port forwarding on the host for each container.

Create a bridge profile using `lxc network create br0` and attach containers to it.

Set the container's network to `eth0` directly using `lxc config device add c1 eth0 nic nictype=physical parent=eth0`.

A developer needs to run a containerized application that requires a specific environment variable `APP_MODE=production` and a maximum of 512 MB of memory. The container will be started and stopped frequently during development. The developer wants to set these properties once so they persist across container restarts. What is the correct approach?

Set the environment variable in the container's `/etc/environment` file and use `lxc config set c1 limits.memory 512MB`.

Pass the environment variable and memory limit as flags to `lxc start c1 --env APP_MODE=production --memory 512MB`.

Use `lxc config set c1 environment.APP_MODE production` and `lxc config set c1 limits.memory 512MB`, then start the container.

Create a new image with the environment variable baked in and launch the container with `lxc launch image c1 --limits.memory=512MB`.

LPIC-3 Virtualization and Containerization

Domain 2Objective 2

352.2 LXC (weight: 6) LPIC-3-VIRTUALIZATION Practice Questions (Page 1)

Part of the Topic 352: Container Virtualization domain, which makes up ~32% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~11–19 in this domain), expect 3–5 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

9concepts

Questions 1–5

1foundation · easy
Which LXD feature allows you to capture the state of a container at a specific point in time and later restore it?
Select an answer first
2expert · hard
An administrator manages a host with a single LXD storage pool using the `dir` driver. A critical container `app1` must be backed up, but the pool is running low on space. The administrator wants to create a backup without consuming additional space in the same pool. Which approach is most appropriate?
Select an answer first
3application · medium
A company runs LXD containers on a single host. They want each container to have its own MAC address and be directly reachable on the physical LAN, so that other devices on the network can connect to the containers without any NAT or port forwarding. The host's physical interface is `eth0`. What networking configuration should be used?
Select an answer first
4application · medium
A developer needs to run a containerized application that requires a specific environment variable `APP_MODE=production` and a maximum of 512 MB of memory. The container will be started and stopped frequently during development. The developer wants to set these properties once so they persist across container restarts. What is the correct approach?
Select an answer first
5foundation · easy
In the LXD architecture, which component is responsible for managing and controlling the lifecycle of containers, including starting, stopping, and monitoring them?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to LPIC-3-VIRTUALIZATION

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Linux Professional Institute. “LPIC-3-VIRTUALIZATION” is a trademark of its owner, used for identification only.

352.2 LXC (weight: 6) LPIC-3-VIRTUALIZATION Practice Questions (Page 1)

Questions 1–5

Which LXD feature allows you to capture the state of a container at a specific point in time and later restore it?

In the LXD architecture, which component is responsible for managing and controlling the lifecycle of containers, including starting, stopping, and monitoring them?

Keep studying — Topic 352: Container Virtualization