Question: What are the conditions for a Standalone Dedicated Channel (SDC) to be considered available, in terms of its administrative and operational states, for the 'Number of Available SDCs' measurement?
Option 1: Administrative state is 'locked' and operational state is 'disabled'.
Option 2: Administrative state is 'unlocked' or 'shuttingdown' and operational state is 'enabled', but only during handover.
Option 3: Administrative state is 'unlocked' or 'shuttingdown' and operational state is 'enabled'.
Option 4: Administrative state is 'locked' and operational state is 'enabled', or administrative state is 'unlocked' and operational state is 'disabled'.
Explanation: This option correctly identifies the conditions under which an SDC is considered available for the measurement. An SDC's availability is determined by its administrative state being either 'unlocked' or 'shuttingdown', coupled with an operational state of 'enabled'. These specific states indicate the channel's readiness for use, aligning with the performance management goals of tracking available resources in a network.