Question: What happens when a Transmission Control Participant receives a "Transmit Media Granted" message from the Transmission Control Server in an MCVideo (Mission Critical Video) scenario?
Option 1: The participant must wait for additional authorization before sending video media.
Option 2: The participant can immediately send video media over the pre-established uplink bearer.
Option 3: The participant is required to send a confirmation message back to the server before transmitting media.
Option 4: The participant's request is considered denied, and no media transmission is allowed.
Explanation: Upon receiving a "Transmit Media Granted" message, the Transmission Control Participant has been authorized to proceed with sending video media. Since the uplink bearer was established beforehand, this grant signifies that all necessary conditions for media transmission have been met, allowing the participant to immediately initiate the video media send process. This direct progression from grant receipt to media transmission highlights an efficient use of resources and minimizes latency in mission-critical communications.