HPE Aruba Certified Mobility Associate (ACMA) — Question 50

What is one important guideline for antenna selection?

Answer options

• A. Ensure that the beam-width exceeds 100 degrees.
• B. Ensure that the H-plane and E-plane values are within 45 degrees of each other.
• C. Ensure that the antenna is rated for 802.11ac usage.
• D. Ensure that the antenna is designed for the frequency used by the radio.

Correct answer: D

Explanation

The correct answer is D because the antenna must be designed to operate at the frequency being used by the radio to ensure effective communication. Option A is incorrect as a beam-width of over 100 degrees is not a universal requirement for all antennas. Option B is not a standard guideline for antenna selection, and option C, while relevant, does not encompass the fundamental requirement of frequency compatibility.