XK0-005 Timed Practice Test 1 — 10 Questions

Question 1

Drag and drop the steps to mount a new filesystem in the correct order.

Question 2

Drag and drop the steps to troubleshoot a network connectivity issue using common commands in the correct order.

Question 3

Drag and drop the steps to create and apply a systemd service unit in the correct order.

Question 4

Drag and drop the steps to set up a cron job that runs a script daily in the correct order.

Question 5

Drag and drop the steps to recover a forgotten root password in single-user mode in the correct order.

Question 6

Drag and drop the steps to configure SELinux to allow a custom web application to listen on port 8080 in the correct order.

Question 7

A system administrator wants to create a new user and set a password in a single command as part of a provisioning script. Which command accomplishes this?

Accepted Answer

echo 'user1:password' | chpasswd. Option B is correct because the `chpasswd` command reads username:password pairs from standard input, allowing a single command to create or update a user's password. When combined with `echo`, it sets the password for a new or existing user in one line, which is ideal for provisioning scripts. The `-p` option in `useradd` expects an already-hashed password, not a plaintext one, and `passwd` does not accept the password as an argument for security reasons.

Answer

passwd user1 password

Answer

useradd -m -p password user1

Answer

usermod -p password user1

Question 8

A developer wants to run a container with a specific command that overrides the default entrypoint. Which Docker command should be used?

Accepted Answer

docker run --entrypoint /bin/bash myimage. Option C is correct because the `--entrypoint` flag in `docker run` allows you to override the default entrypoint defined in the Docker image. By specifying `--entrypoint /bin/bash`, the container will start with `/bin/bash` as its entrypoint, ignoring any `ENTRYPOINT` or `CMD` instructions in the Dockerfile. This is the standard Docker syntax for replacing the entrypoint at runtime.

Answer

docker run myimage /bin/bash

Answer

docker exec myimage /bin/bash

Answer

docker start myimage /bin/bash

Question 9

A cloud engineer needs to automate the deployment of a new virtual machine with a specific configuration using Ansible. Which file format is typically used for Ansible playbooks?

Accepted Answer

YAML. Ansible playbooks are written in YAML (YAML Ain't Markup Language) because it is human-readable, supports complex data structures like lists and dictionaries, and is designed for configuration management. YAML's indentation-based syntax aligns with Ansible's declarative approach, allowing tasks, variables, and handlers to be defined cleanly without the overhead of brackets or tags.

Answer

JSON

Answer

XML

Answer

INI

Question 10

A systems administrator wants to build a custom Docker image from a Dockerfile located in the current directory. Which command should be used?

Accepted Answer

docker build .. The `docker build .` command reads the Dockerfile from the current directory and builds a custom Docker image from its instructions. This is the standard command for building an image from a Dockerfile, where the dot represents the build context (the current directory).

Answer

docker create .

Answer

docker commit .

Answer

docker image build .