Question: In a Mission Critical Video (MCVideo) group, how does an MCVideo client typically share its video capabilities with other group members, according to standards for off-network scenarios?
Option 1: By utilizing Proximity Services (ProSe) capabilities for both periodic and on-request information sharing.
Option 2: Exclusively through periodic broadcasting of capability updates without any request mechanism.
Option 3: Solely in response to explicit requests from other MCVideo clients, with no periodic update mechanism.
Option 4: By relying on the network infrastructure to mediate and distribute capability information among group members.
Explanation: This is correct because off-network video capability information sharing, as described in the context of MCVideo, leverages Proximity Services (ProSe) capabilities. This approach enables direct communication between devices for both periodic updates and on-request sharing, aligning with the flexible and dynamic nature of off-network communications in mission-critical scenarios.