Chapter 3 quiz

Question 1

What metric is often used for indoor AP output power definition?

Answer 1

mW

Question 2

What signal metric has been become very popular for both transmit and receive power levels?

Answer 2

RSSI (Received Signal Strength Indicator)

Question 3

Why is RSSI metric not typically a good signal metric for comparison across vendors?

Answer 3

Each vendor specifies the RSSI__MAX value differently

Question 4

You start with a power level of 50 mW and add 7 dB, what is the resulting power level?

Answer 4

250 mW

Question 5

An AP has an output power setting of 20 dBm. The antennas provide 5 dB of gain. What is the EIRP?

Answer 5

320 mW

Question 6

An AP has an output power setting of 13 dBm. The antenna is directly connected and has 3 dBi gain. What is the output power at the IR?

Answer 6

20 mW

Question 7

You are calculating an outdoor bridge link. You have determined the bridge output power levels, antenna gain, and losses incurred by all cables and connectors on both ends. What additional factor is missing?

Answer 7

FSPL (Free Space Path loss)

Question 8

How do you calculate the dBi of an antenna when the gain is provided in dBd?

Answer 8

Added 2.14

Question 9

You are calculating power levels and have been given the following values: +3dB, +5dB, -21 dB, +11dB, and +3dB. How can you simplify the calculation?

Answer 9

Just use the value +1 dB

Question 10

What metric is preferred by engineers and Is used to represent received signal strength?

Answer 10

dBm