Question: What action will the DRNC take if a COMMON TRANSPORT CHANNEL RESOURCES REQUEST message for a new transport channel contains only the Transport Layer Address IE but not the Binding ID IE, assuming ALCAP is not used?
Option 1: Accept the procedure and establish the transport channel with default settings.
Option 2: Reject the procedure using the COMMON TRANSPORT CHANNEL RESOURCES FAILURE message.
Option 3: Request additional information via a COMMON TRANSPORT CHANNEL RESOURCES QUERY message before making a decision.
Option 4: Automatically generate a Binding ID IE to complement the provided Transport Layer Address IE.
Explanation: According to specified conditions for handling abnormal conditions in RNSAP signalling, if either the Transport Layer Address IE or the Binding ID IE is present without the other for a transport channel (and ALCAP is not used), the DRNC must reject the procedure to ensure consistency and completeness of setup information for new transport channels.