RHCE Containers and Podman

Question 1

What is the primary container tool used in RHEL 8+ instead of Docker?

Accepted Answer

Podman

Answer

LXC

Answer

rkt

Answer

containerd

Question 2

Which command runs a container from the `ubi8` image interactively with a bash shell?

Accepted Answer

podman run -it ubi8 bash

Answer

podman start -it ubi8 bash

Answer

podman exec -it ubi8 bash

Answer

podman create -it ubi8 bash

Question 3

What is a key advantage of Podman over Docker in RHEL?

Accepted Answer

Supports rootless containers without a background daemon

Answer

Requires a root daemon to manage containers

Answer

Only supports privileged containers

Answer

Cannot run systemd services inside containers

Question 4

Which command lists all running containers in Podman?

Accepted Answer

podman ps

Answer

podman images

Answer

podman list

Answer

podman containers

Question 5

What command pulls the `httpd` image from the Red Hat registry?

Accepted Answer

podman pull registry.access.redhat.com/ubi8/httpd-24

Answer

podman get httpd

Answer

podman fetch httpd:latest

Answer

podman download httpd

Question 6

Which Podman command maps host port 8080 to container port 80?

Accepted Answer

podman run -p 8080:80 httpd

Answer

podman run -e 8080:80 httpd

Answer

podman run --port 8080:80 httpd

Answer

podman run -P 8080:80 httpd