Quiz: resources and security

Read the output

The student user exists on the machine. What will the command print?

$ sudo docker run --rm --user student alpine id

• A unable to find user student: no matching entries in passwd file
• B uid=0(root) gid=0(root) — docker skips an unknown name.
• C uid=1000(student) gid=1000(student) groups=1000(student)