Implementing Cisco Wireless Network Fundamentals (WIFUND, legacy) — Question 138

Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR?

Answer options

• A. channel aggregation
• B. spatial multiplexing
• C. MAC layer efficiency
• D. TxBF
• E. MRC
• F. MCS

Correct answer: E

Explanation

The correct answer is E, MRC (Maximum Ratio Combining), which effectively combines signals from multiple antennas to enhance SNR. Options A and B relate to throughput and signal transmission strategies but do not specifically address SNR improvement. Options C, D, and F are also unrelated to the combination of signals from antennas for SNR enhancement.