LFCS Certification Network Service Configuration 3

Question 1

Which NFS client command mounts a remote NFS share at /mnt/data from server 192.168.1.10 sharing /exports/data?

Accepted Answer

mount -t nfs 192.168.1.10:/exports/data /mnt/data

Answer

mount -t nfs specifies the NFS filesystem type and uses server:path notation to identify the remote export.

Question 2

In /etc/exports, which option grants read-write access and maps remote root to the local root user?

Accepted Answer

(rw,no_root_squash)

Answer

no_root_squash allows remote root to act as local root; without it root_squash is the secure default.

Question 3

Which command applies changes made to /etc/exports without restarting the NFS server?

Accepted Answer

exportfs -ra

Answer

exportfs -ra re-exports all directories listed in /etc/exports, picking up any edits.

Question 4

What does the 'nameserver' directive in /etc/resolv.conf specify?

Accepted Answer

The IP address of a DNS resolver to query

Answer

Each 'nameserver' line lists an IP of a DNS recursive resolver the system will query for lookups.

Question 5

Which xinetd/inetd replacement is commonly used in modern Linux to manage on-demand TCP services?

Accepted Answer

systemd socket activation

Answer

systemd socket units replace inetd/xinetd by starting services on-demand when connections arrive.

LFCS Certification Practice Test