CompTIA Network+ Practice Questions: Wireless

5 free, exam-style CompTIA Network+ (N10-009) practice questions covering Wireless. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.

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Q1. Which wireless standard introduced MU-MIMO?

Explanation: 802.11ac Wave 2 introduced MU-MIMO (Multi-User, Multiple Input, Multiple Output), allowing a wireless access point to transmit data to multiple clients simultaneously. This improves efficiency and performance in environments with many active users. Learn more.

Q2. Which wireless standard operates exclusively in the 5 GHz frequency band and offers a maximum theoretical throughput of 54 Mbps using OFDM?

Explanation: 802.11a operates in the 5 GHz band, uses OFDM (Orthogonal Frequency Division Multiplexing), and provides a maximum data rate of 54 Mbps. 802.11b/g use 2.4 GHz, and 802.11n can use both. Learn more.

Q3. Which wireless band generally provides more non-overlapping channels and less congestion than 2.4 GHz?

Explanation: The 5 GHz band provides more channels and is often less congested, though it usually has shorter range than 2.4 GHz. Learn more.

Q4. A wireless client has strong signal but poor throughput in a crowded area. What should be checked?

Explanation: High channel utilization, co-channel interference, or adjacent-channel interference can reduce throughput despite strong signal. Learn more.

Q5. Which device provides centralized management for lightweight wireless access points?

Explanation: A wireless LAN controller centrally manages lightweight AP configuration, roaming, and policies. Learn more.

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