Quick Answer
The answer is WPA2, as it is the best security method for a wireless network. WPA2 is correct because it employs AES encryption with CCMP, which provides robust data confidentiality and integrity, unlike outdated protocols such as WEP that use weak RC4 encryption and are easily cracked. On the CompTIA ITF+ FC0-U61 exam, this question tests your understanding that true security comes from encryption standards, not from non-encryption measures like MAC filtering or hiding the SSID, which are common traps that offer minimal protection against determined attackers. A key memory tip is to remember that WPA2 uses AES, which stands for Advanced Encryption Standard—think of it as the “gold standard” for wireless security, making it the only strong choice among the options.
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 small business wants to set up a wireless network. Which of the following is the BEST security method to use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
WEP
Why wrong: WEP is insecure.
WPA2
WPA2 provides strong encryption.
MAC address filtering
Why wrong: MAC filtering is not a strong security method.
Disable SSID broadcast
Why wrong: Hiding SSID does not encrypt data.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
WPA2
WPA2 (Wi-Fi Protected Access 2) is the best security method among the options because it uses AES (Advanced Encryption Standard) with CCMP (Counter Mode CBC-MAC Protocol), providing strong encryption and integrity protection. WEP is outdated and easily cracked, while MAC filtering and disabling SSID broadcast are not encryption methods and offer minimal security against determined attackers.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
WEP
Why it's wrong here
WEP is insecure.
WPA2
Why this is correct
WPA2 provides strong encryption.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
MAC address filtering
Why it's wrong here
MAC filtering is not a strong security method.
Disable SSID broadcast
Why it's wrong here
Hiding SSID does not encrypt data.
Common exam traps
The trap here is that candidates often confuse security features like MAC filtering or hiding the SSID with actual encryption, thinking they provide strong protection, when in fact they are easily bypassed and do not secure the data in transit.
Detailed technical explanation
WPA2-Personal uses a Pre-Shared Key (PSK) combined with a four-way handshake to derive session keys, ensuring that each client has a unique encryption key. The AES-CCMP cipher operates on 128-bit blocks and provides both confidentiality and data origin authentication, making it resistant to known attacks like the chopchop attack that breaks WEP. In a real-world scenario, a business should also consider using WPA3 if hardware supports it, as it adds SAE (Simultaneous Authentication of Equals) to protect against offline dictionary attacks.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
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FAQ
Infrastructure — This question tests Infrastructure — Read the scenario before looking for a memorised answer..
The correct answer is: WPA2 — WPA2 (Wi-Fi Protected Access 2) is the best security method among the options because it uses AES (Advanced Encryption Standard) with CCMP (Counter Mode CBC-MAC Protocol), providing strong encryption and integrity protection. WEP is outdated and easily cracked, while MAC filtering and disabling SSID broadcast are not encryption methods and offer minimal security against determined attackers.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
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 small business wants to set up a wireless network for employees and guests. The owners are concerned about unauthorized access. Which of the following security measures would be MOST effective to prevent outsiders from connecting?
mediumWhy D: Option B is correct because WPA2 encryption with a strong password is the standard for securing Wi-Fi. Option A is wrong because SSID broadcast hiding is easily bypassed. Option C is wrong because MAC filtering can be spoofed. Option D is wrong while disabling DHCP may hinder but not prevent connection; static IP can be guessed.
Last reviewed: Jun 11, 2026
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.
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