Manage containers

An administrator needs to ensure that a container always runs with a specific SELinux context for security reasons. The container uses a volume mount from the host. Which command should be used to start the container?

A system administrator wants to run a container that uses the rootless mode available in Podman. Which requirement must be met for rootless containers to work correctly?

A container running a database service needs to persist data across restarts. The administrator decides to use a named volume. Which command creates a named volume and mounts it correctly?

Which TWO statements are true regarding container images and containers in Podman?

Which THREE actions are required to enable a non-root user to run containers using Podman on Red Hat Enterprise Linux 8?

A system administrator needs to run a container that remains running in the background and executes a web server. Which podman command will correctly run the container detached and map host port 8080 to container port 80?

A container named 'web1' was created and ran briefly before exiting with status 0. The administrator needs to restart it and attach to the running container's console. Which command should be used?

Put the steps to configure NFS server to export /nfsshare to a specific client in order.

Match each log file to its typical content.

A user wants to run a container that will restart automatically unless explicitly stopped by the administrator. Which podman run option should be used?

A container fails to start because the port it needs is already in use. Which command can the administrator use to identify the process using the port?

A team wants to run a container as a non-root user inside the container for security. Which instruction should be included in the Containerfile?

A containerized web server needs to persist logs outside the container. Which podman run option allows the administrator to specify a bind mount with mount propagation options?

A database container crashes repeatedly. The administrator wants to see the last 10 lines of the container's logs before it exited. Which command should be used?

An administrator is building a container image with a Containerfile. They want to ensure that a specific RUN command always executes without using the build cache. Which build option should they use?

A container needs to share the host's network namespace for performance monitoring. Which podman run option achieves this?

Which TWO options to podman run can be used to persist data outside the container? (Select exactly two.)

Which THREE options to podman run can be used to publish container ports to the host? (Select exactly three.)

A container is running but cannot be accessed from the network. Which TWO commands could help diagnose the issue? (Select exactly two.)

Based on the exhibit, which command should be used to start the container named 'mycontainer'?

Based on the exhibit, which statement about the container 'webserver' is true?

An administrator needs to run a container with a bind mount of the host directory /data to /var/lib/data inside the container. The container image is web:latest. Which command correctly achieves this?

A system administrator wants to run a container as a systemd service that restarts automatically after a system reboot. Which approach follows Red Hat best practices?

An administrator needs to pull a container image from a private registry at registry.example.com:5000. The registry requires authentication. Which command should be used first?

A containerized application writes logs to stdout. The administrator wants to view only the last 50 lines of logs from a container named 'app1'. Which command accomplishes this?

Which file should be present in a directory to build a container image using 'podman build'?

An administrator wants to run a container with --user 1001:1001 to avoid running as root. After starting, the container cannot write to a bind-mounted directory owned by root. What is the best practice to allow write access?

A container exits immediately with status 1. The administrator runs 'podman logs container' but sees no output. What is the most likely reason for the missing logs?

Which TWO options correctly describe the use of 'podman exec'? (Choose TWO.)

Which THREE statements about container storage in podman are correct? (Choose THREE.)

A company runs a critical web application in a container on a Red Hat Enterprise Linux 9 server. The container is started via a systemd service called 'webapp.service'. The service unit file was generated using 'podman generate systemd --new --name webapp'. Recently, after a kernel update and reboot, the service fails to start the container. The administrator runs 'systemctl status webapp.service' and sees 'Active: failed (Result: exit-code)' and 'Process: 1234 ExecStart=/usr/bin/podman run ... (code=exited, status=125)'. The administrator also checks 'journalctl -u webapp.service' and sees: 'Error: unable to start container: container create failed: OCI runtime error: container_linux.go:380: starting container process caused: exec: "/usr/bin/app.sh": stat /usr/bin/app.sh: no such file or directory'. The container image was built locally using a Containerfile that includes 'COPY app.sh /usr/bin/app.sh'. The administrator verifies the image is present locally. What should the administrator do to resolve this issue?

A system administrator is troubleshooting a container that fails to start with the error: 'Error: cannot start container: listen tcp4 :80: bind: address already in use'. The container is intended to serve HTTP traffic on port 80. What is the most appropriate first step to resolve this issue?

A developer is running Podman as a non-root user on a Red Hat Enterprise Linux 8 system. The developer successfully runs a container, but notices that after logging out of the SSH session, the container stops. The developer wants the container to continue running even after disconnecting from the SSH session. The container is a simple web server that listens on port 8080. The developer has already enabled lingering for the user account using 'loginctl enable-linger'. However, the container still stops upon logout. What additional step should the developer take to ensure the container persists after logout?

A system administrator needs to ensure that data written to a container's `/var/lib/mysql` directory persists after the container is removed. Which TWO methods accomplish this requirement?

Refer to the exhibit. A container named 'db' is running on the host. An administrator runs `podman inspect db` and sees the above output snippet. What can be concluded about the container's network configuration?