Question: What are the implications when an SMR (Short Message Relay) entity sends an MNSMS-ESTablish-REQuest to establish a CM (Connection Management) connection, specifically in relation to the included RP-DATA UNIT parameter?
Option 1: Only the establishment of a CM-connection for the specific SMR entity is initiated.
Option 2: Both the establishment of a CM-connection and the immediate transmission of the CP-DATA message over the established connection are triggered.
Option 3: The request solely results in forming a CP-DATA message containing the RPDU, without any connection establishment or data passing actions.
Option 4: It implies the establishment of a CM-connection for this SMR entity, forming of the CP-DATA message containing the RPDU, and passing of CP-DATA to the MM-sublayer.
Explanation: The correct answer accurately reflects all implications of sending an MNSMS-ESTablish-REQuest with an RP-DATA UNIT parameter: a CM-connection is established for the SMR entity, a CP-DATA message is formed to contain the RPDU, and this CP-DATA is passed to the Mobility Management sublayer.