Question: For a migrated Mission Critical Data (MCData) user, what is the relationship between the local message store accessible via the partner MCData system and the message store in the primary MCData system?
Option 1: The two message stores are synchronized in real-time, ensuring identical content.
Option 2: There is no connection between the two message stores; access to one does not provide access to the other.
Option 3: The partner MCData system's message store acts as a mirror for the primary MCData system's store during migration.
Option 4: The migrated user can only access the message store of the primary MCData system through the partner system.
Explanation: This is correct because, according to the specifications, there is no connection between the message store in the partner MCData system (accessible by a migrated MCData user) and any message store in the primary MCData system. This implies that accessing one does not provide a means of accessing the content stored in the other, highlighting the independence of these stores during migration scenarios in Mission Critical Data services.