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FC0-U71 Practice Question: A small office has five computers connected to a…
A small office has five computers connected to a switch, which is connected to a router that provides internet access. The office uses a single printer connected to one computer and shared over the network. The router has built-in DHCP and assigns IP addresses in the 192.168.0.0/24 range. Recently, the office manager added a wireless access point (WAP) to allow guests to access the internet. The WAP is connected to the switch and configured with its own DHCP server handing out addresses in the 192.168.1.0/24 range. The manager notices that some office computers are unable to access the shared printer, while others can. The computers that cannot access the printer have IP addresses in the 192.168.1.0/24 range. The printer's IP address is 192.168.0.50. What is the most likely cause of the issue?
⚠ Common exam trap
Candidates often assume all devices connected to the same switch are on the same network, overlooking that separate DHCP servers create distinct subnets that require a router to communicate.
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 computers with IP addresses in the 192.168.1.0/24 range are on a different subnet than the printer.
The computers with IP addresses in the 192.168.1.0/24 range are on a different subnet than the printer, which has an IP address of 192.168.0.50. Without a router configured to route traffic between these two subnets, devices on the 192.168.1.0/24 network cannot communicate with devices on the 192.168.0.0/24 network. Since the WAP is acting as a separate DHCP server and is not routing between the subnets, the printer remains unreachable from the guest network.
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 WAP's DHCP server is malfunctioning.
Why it's wrong here
DHCP is working; it assigned IPs to some computers.
- ✓
The computers with IP addresses in the 192.168.1.0/24 range are on a different subnet than the printer.
Why this is correct
Different subnets require a router to communicate.
- ✗
The switch port for the printer is faulty.
Why it's wrong here
Printer is accessible from some computers.
- ✗
The printer is not powered on.
Why it's wrong here
Printer is accessible from some computers.
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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.