XK0-006 Exam Dumps | A Linux administrator is configuring a CUPS print service on a Linux machine and needs to allow only

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CompTIA.XK0-006.v2026-10-24.q87
Question 64

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Question 64/87

A Linux administrator is configuring a CUPS print service on a Linux machine and needs to allow only connections from a local network. Which of the following commands should the administrator use?

A. iptables -A OUTPUT -d 192.168.100.0/24 --sport 631 -p tcp -j ACCEPT

B. iptables -A OUTPUT -s 192.168.100.0/24 --dport 631 -p tcp -j ACCEPT

C. iptables -A INPUT -s 192.168.100.0/24 --dport 631 -p tcp -j ACCEPT

D. iptables -D INPUT -d 192.168.100.0/24 --dport 631 -p tcp -j ACCEPT

Correct Answer: C

Allowing access to the CUPS service requires permitting incoming TCP connections to port 631 from the local network. Adding an INPUT rule with the source network and destination port 631 ensures only hosts on that subnet can connect to the print service.

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