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220-1201 Practice Question: A small office uses a network printer that…
A small office uses a network printer that supports both IPP and LPD printing. The printer is configured to use the default port for IPP. Which port must be open on the firewall for printing to work?
⚠ Common exam trap
A common trap in CompTIA A+ exams is confusing IPP (port 631) with LPD (port 515) or HTTP (port 80) since IPP is HTTP-based. Candidates may incorrectly choose port 515 assuming all network printing uses LPD, or port 80 thinking IPP uses standard HTTP.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
631
IPP (Internet Printing Protocol) uses TCP port 631 by default, as defined in RFC 2911. Since the printer is configured to use the default port for IPP, the firewall must allow inbound traffic on port 631 for printing to function.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
515
Why it's wrong here
Port 515 is LPD, a different printing protocol, not IPP.
- ✗
9100
Why it's wrong here
Port 9100 is used by raw printing (JetDirect), not IPP.
- ✓
631
Why this is correct
Port 631 is the default port for IPP, used for network printing.
- ✗
80
Why it's wrong here
Port 80 is HTTP, used for web traffic, not printing.
Go deeper
Related to this question
Learn chapter
Network Configuration: IP, DNS, DHCP
Key term
Network printer
A network printer is a printer that is connected to a network, allowing multiple users and computers to send print jobs to it over the network rather than requiring a direct cable connection to a single computer.
Key term
Firewall
A firewall is a network security system that monitors and controls incoming and outgoing traffic based on predetermined security rules to protect trusted internal networks from untrusted external networks.
About these practice questions
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.