Question: What is the primary purpose of a User Equipment (UE) supporting minimization of service interruption, as related to disaster scenarios in E-UTRA networks?
Option 1: To report disaster roaming information for available Public Land Mobile Networks (PLMNs) to the Non-Access Stratum (NAS) and perform Access Barring checks for specific identities.
Option 2: To enhance data transfer speeds during emergency responses by prioritizing UE connections.
Option 3: To facilitate direct communication between UEs in close proximity without infrastructure support.
Option 4: To reduce power consumption of the UE during extended network outages.
Explanation: Minimization of service interruption, in the context of E-UTRA and disaster scenarios, involves the UE reporting critical information to ensure continuous service. This includes informing the NAS about available PLMNs for roaming purposes (especially crucial during disasters when home networks might be down) and checking Access Barring for specific identities (like Identity 3), ensuring that emergency services or communications are not inadvertently barred. This process is vital for maintaining connectivity under adverse conditions, making Option 1 the correct answer.