easyMultiple Choice
FC0-U71 Practice Question: A home user wants to connect a desktop computer…
A home user wants to connect a desktop computer to the internet using a wireless connection. The computer does not have built-in Wi-Fi. What is the simplest and most cost-effective solution? The user has a wireless router already installed and working.
⚠ Common exam trap
The trap here is that candidates may overthink the solution and choose a more complex option like powerline adapters or Ethernet, missing that the simplest fix is a low-cost wireless adapter that directly addresses the missing Wi-Fi hardware.
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
✓
Install a wireless network adapter (USB or PCIe)
A wireless network adapter (USB or PCIe) adds Wi-Fi capability to a desktop that lacks it, directly connecting to the existing wireless router. This is the simplest and most cost-effective solution because it requires no new infrastructure or cabling, and USB adapters are plug-and-play with minimal setup.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Install a wireless network adapter (USB or PCIe)
Why this is correct
A USB or PCIe wireless adapter adds 802.11 capability to a desktop lacking built-in Wi-Fi, using the existing router's access point. It costs far less than replacing the router or running cabling, and needs no reconfiguration of the network.
- ✗
Use a powerline adapter to extend the network
Why it's wrong here
A powerline adapter carries Ethernet over mains wiring, giving the desktop a wired connection rather than Wi-Fi, so the wireless requirement is unmet. It is the right choice when Wi-Fi coverage is poor and a stable wired link is needed without new cabling.
- ✗
Replace the computer with a laptop that has Wi-Fi
Why it's wrong here
Replacing the computer with a Wi-Fi laptop discards a working desktop and costs far more than adding a USB Wi-Fi adapter. It would be justified only if the existing machine were obsolete or needed replacing anyway, not merely to gain wireless capability.
- ✗
Run an Ethernet cable from the router to the computer
Why it's wrong here
An Ethernet cable provides a wired link, so the desktop remains non-wireless, contradicting the stated wireless requirement. It is tempting because it is cheap and reliable, and would be the right answer if the user simply needed connectivity and cabling were practical.
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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.