The answer is to install a wireless network adapter, either as a USB dongle or a PCIe card. This is the simplest and most cost-effective solution because the adapter directly adds Wi-Fi capability to a desktop that lacks built-in wireless, allowing it to communicate with the existing wireless router without running new cables or replacing hardware. On the CompTIA ITF+ FC0-U61 exam, this question tests your understanding of basic network connectivity components and the difference between infrastructure upgrades versus simple peripheral additions. A common trap is choosing a powerline adapter or a new router, but the exam emphasizes that a USB wireless adapter is plug-and-play, requires zero configuration beyond selecting the network, and costs under $30. For a memory tip, think “USB Wi-Fi = instant Wi-Fi”—if the router is already working, the missing piece is always the adapter on the desktop side.
FC0-U61 Infrastructure Practice Question
This FC0-U61 practice question tests your understanding of infrastructure. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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.
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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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
This directly adds Wi-Fi capability to the desktop at low cost.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a powerline adapter to extend the network
Why it's wrong here
Powerline provides wired connectivity over electrical lines, not wireless.
✗
Replace the computer with a laptop that has Wi-Fi
Why it's wrong here
This is expensive and unnecessary.
✗
Run an Ethernet cable from the router to the computer
Why it's wrong here
Ethernet is wired, not wireless; the user specifically wants wireless.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Detailed technical explanation
How to think about this question
Wireless network adapters implement IEEE 802.11 standards (e.g., 802.11ac or 802.11ax) and communicate with the router via CSMA/CA. USB adapters often use the RTL8812AU chipset for dual-band operation, while PCIe cards offer better antenna placement and lower latency. In real-world scenarios, a USB adapter can be easily moved between computers, making it ideal for temporary or multi-device setups.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Infrastructure — This question tests Infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 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.
What should I do if I get this FC0-U61 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A user wants to connect a laptop to a corporate wireless network. What internal component must be present in the laptop?
easy
✓ A.Wireless NIC
B.Cellular modem
C.Infrared port
D.Bluetooth adapter
Why A: A Wireless NIC (Network Interface Card) is the internal component required for a laptop to connect to a corporate wireless network. It contains a radio transceiver that communicates with wireless access points using IEEE 802.11 standards (e.g., 802.11ax), handling frame encapsulation, authentication, and encryption such as WPA3. Without a wireless NIC, the laptop has no physical layer capability to transmit or receive Wi-Fi signals.
Last reviewed: Jun 25, 2026
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This FC0-U61 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-U61 exam.
Question Discussion
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