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Exam 200-355 All Questions

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Exam 200-355 topic 1 question 24 discussion

Actual exam question from Cisco's 200-355
Question #: 24
Topic #: 1
[All 200-355 Questions]

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

  • A. channel aggregation
  • B. spatial multiplexing
  • C. MAC layer efficiency
  • D. TxBF
  • E. MRC
  • F. MCS
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Suggested Answer: E 🗳️
by kuehlo at Sept. 5, 2019, 7:47 p.m.

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kuehlo
5 years, 9 months ago
https://learningnetwork.cisco.com/docs/DOC-31396 Maximal-Ratio Combining Basically this is where we use our extra antennas in a MIMO-device to try and improve the SNR-of a signal. It can receive multiple copies of the same signal and then combine them into one single signal that has a better SNR then the two individually received signals. In a nutshell though, this requires that a transmitter sends the original signal out from two or more transmitters, and that the receiver also receives multiple copies of the same signal and then tries to improve the received signal into a higher quality signal.
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