220-1101 · Question #781
A technician needs to configure a firewall to enable network printing. Which of the following network ports should be opened? (Select two).
The correct answer is D. 515 (LDP) E. 631 (IPP). Two protocols are used for network printing. Port 515 is used by LPD/LPR (Line Printer Daemon/Remote), the traditional UNIX-based printing protocol. Port 631 is used by IPP (Internet Printing Protocol), the modern standard for network printing used by CUPS and most contemporary p
Question
A technician needs to configure a firewall to enable network printing. Which of the following network ports should be opened? (Select two).
Options
- A3389 (RDP)
- B23 (Telnet)
- C25 (SMTP)
- D515 (LDP)
- E631 (IPP)
- FLPT1
How the community answered
(23 responses)- A4% (1)
- B9% (2)
- D87% (20)
Explanation
Two protocols are used for network printing. Port 515 is used by LPD/LPR (Line Printer Daemon/Remote), the traditional UNIX-based printing protocol. Port 631 is used by IPP (Internet Printing Protocol), the modern standard for network printing used by CUPS and most contemporary printers. RDP (3389) is for remote desktop, Telnet (23) is for remote terminal access, SMTP (25) is for email, and LPT1 is a local parallel port designation-not a network port at all.
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