Question: What happens to the stored list of equivalent PLMNs when the Mobile Station (MS) is switched off?
Option 1: The list is deleted.
Option 2: The list remains stored and is not deleted.
Option 3: The list is replaced with a new list downloaded from the network.
Option 4: The list is updated with new entries.
Explanation: According to the specification, the stored list of equivalent PLMNs shall not be deleted when the MS is switched off. This ensures that the MS retains its knowledge of equivalent PLMNs even after a power cycle, allowing for seamless network selection and cell re-selection.