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FC0-U71 Practice Question: A user can access the internet and other…

A user can access the internet and other computers on the network but cannot print to a network printer that is on the same subnet. The printer's IP is 192.168.1.100. What is the most likely cause?

⚠ Common exam trap

Watch out — candidates often assume a network configuration issue (like DNS or subnet mask) is the cause, overlooking the simplest physical-layer problem—a powered-off device—which is a common CompTIA troubleshooting focus.

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

The printer is powered off

If the printer is powered off, it cannot respond to print jobs, yet the user can still access the internet and other computers on the network since those services are independent of the printer. The printer's IP address (192.168.1.100) being on the same subnet means that connectivity to it relies solely on the printer being powered on and operational at Layer 2 (Ethernet) and Layer 3 (IP). A powered-off printer will not respond to ARP requests or TCP connections, causing print jobs to fail while other network functions remain unaffected.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • The router is not forwarding print jobs

    Why it's wrong here

    Print jobs on the same subnet do not traverse the router.

  • The user's computer has a wrong subnet mask

    Why it's wrong here

    A wrong subnet mask would affect all network communication, not just the printer.

  • The printer's DNS is misconfigured

    Why it's wrong here

    DNS is not required for local subnet communication.

  • The printer is powered off

    Why this is correct

    A powered-off printer is unreachable, while other network functions work.

Visual reference

192.168.1.0 /24 256 addresses (254 usable) 192.168.1.0 /25 Subnet A 128 addr (126 usable) 192.168.1.128 /25 Subnet B 128 addr (126 usable) Borrowing 1 bit from host portion creates 2 subnets (/25)

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This FC0-U71 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 FC0-U71 exam.