RHCSA RHCSA EX200 3

Question 1

A cron job must run as user 'deploy' every weekday at 7:30 AM. Which crontab entry is correct?

Accepted Answer

30 7 * * 1-5 deploy /script.sh

Answer

Crontab fields are minute hour dom month dow; '30 7 * * 1-5' means 7:30 AM Monday through Friday.

Question 2

Which NFS mount option ensures that if the NFS server is unreachable, the mount operation does not hang the system indefinitely?

Accepted Answer

soft

Answer

The 'soft' option causes NFS operations to return an error after a timeout instead of retrying indefinitely.

Question 3

You want to find all SUID files on the system. Which find command is correct?

Accepted Answer

find / -perm -4000 -type f

Answer

The '-perm -4000' with the leading dash means the SUID bit must be set, regardless of other permission bits.

Question 4

Which file controls the sudo privileges for users and groups on a RHEL system, and should be edited with 'visudo'?

Accepted Answer

/etc/sudoers

Answer

/etc/sudoers defines who can run what commands as which users; visudo validates syntax before saving.

Question 5

To mount an XFS filesystem at /data persistently, which /etc/fstab entry is correct?

Accepted Answer

/dev/sdb1 /data xfs defaults 0 0

Answer

For a non-root XFS partition, the last two fields should be 0 0 (no dump, no fsck) since xfs_repair is used manually.

RHCSA Exam Practice Test