Question: What is the unit of measurement for the actual value of the threshold indicated by the `ReselectionThresholdQ` Information Element in Radio Resource Control (RRC) protocol?
Option 1: Milliwatts (mW)
Option 2: Decibels relative to one milliwatt (dBm)
Option 3: Hertz (Hz)
Option 4: Decibels (dB)
Explanation: According to the specification, the actual value of the threshold for `ReselectionThresholdQ` is indicated in decibels (dB), which is a unit of measurement for power ratios, often used in telecommunications to express signal strength or quality thresholds. This directly impacts how cell reselection is triggered based on perceived signal quality by User Equipment (UE).