JNCIA-DC: Juniper Networks Certified Associate – Data Center — Question 10

You are troubleshooting a WLAN from a mobile handheld device that displays radio information. You see a signal on the same SSID from two separate access points (APs). AP A shows a signal strength of -57 dBm and AP B shows a signal strength of -72 dBm.
In this scenario, which statement is correct?

Answer options

• A. dBm is not a measure of signal strength.
• B. The client's signal strength is not known.
• C. Access point A has the stronger signal.
• D. Access point B has the stronger signal.

Correct answer: A

Explanation

The correct answer is A because dBm is indeed a measurement of power level in decibels relative to one milliwatt, making the statement incorrect. B is wrong since the client's signal strength can be inferred from the AP's signal strengths. C is true as AP A has a stronger signal than AP B, making D also incorrect.