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Question 33 - CWNA-109 discussion

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Which unit of measurement, as formally defined, is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?

A.
SNI
Answers
A.
SNI
B.
VSWR
Answers
B.
VSWR
C.
dBm
Answers
C.
dBm
D.
dBi
Answers
D.
dBi
Suggested answer: C

Explanation:

The unit of measurement that is an absolute unit and is used to quantify received signal power levels on a logarithmic scale isdBm. dBm stands for decibel-milliwatt and represents the power level relative to 1 milliwatt (mW). dBm is an absolute unit because it has a fixed reference point and does not depend on the input power level. dBm is used to measure the received signal power levels on a logarithmic scale because it can express large variations in power levels with small numbers and make calculations easier. For example, a 10 dB increase in power level means a 10-fold increase in power, and a 20 dB increase means a 100-fold increase in power.Reference:[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 66; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 56.

asked 16/09/2024
Alex Bu
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