Question: What happens to an alarm once it reaches the 'ack_clear' state (cleared and acknowledged) in a managed system, according to fault management principles?
Option 1: The alarm's state is modified to 'pending' and notifications continue to be sent to subscribed consumers.
Option 2: The alarm remains active but is hidden from the AlarmList object until further action is taken.
Option 3: The alarm is considered inactive, removed from the AlarmList, and no further notifications are sent about it.
Option 4: The alarm's lifecycle is reset to its initial state, awaiting reactivation.
Explanation: When an alarm reaches the 'ack_clear' state, indicating resolution and acknowledgment, fault management principles dictate that the alarm is no longer active. It is removed from the AlarmList and notifications about it cease, reflecting successful resolution and acknowledgment of the fault.