Question: How does the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) deliver Commercial Mobile Alert System (CMAS) warning notifications to User Equipment (UE)?
Option 1: Through dedicated point-to-point connections for each alert
Option 2: By incorporating them into regular voice or data transmissions
Option 3: Via a specific, periodically broadcast control channel
Option 4: Broadcast in SystemInformationBlockType12
Explanation: The correct delivery method for CMAS warning notifications is broadcasting them within SystemInformationBlockType12. This approach allows for efficient dissemination of multiple, concurrent alerts to all capable User Equipment (UE) within the network's coverage area, leveraging the inherent capabilities of the E-UTRAN for broadcast/multicast services. This method aligns with the need for rapid, widespread notification in emergency situations, as envisioned by public warning systems like CMAS.