Question: What does the 'No-of-Broadcasts-Compl-Info' information element indicate about a CBS message's broadcast status, when supplied to the Cell Broadcast Centre (CBC)?
Option 1: The exact number of partial broadcasts made for a CBS message.
Option 2: Whether the CBS message is being broadcast over a specific interface (e.g., air interface only).
Option 3: The total size of all pages of the CBS message in bytes.
Option 4: Either an overflow condition where the actual number of full broadcasts exceeds the reported count, or that the number of broadcasts completed is unknown.
Explanation: This option correctly reflects the two cases indicated by the 'No-of-Broadcasts-Compl-Info' element: (1) an overflow, meaning the actual broadcast count surpasses the value in 'No-of-Broadcasts-completed', and (2) unknown, signifying a lack of information on the number of broadcasts completed for a CBS message with an old serial number.