That would be dissociative identity disorder
Answer:
Active Session Hijacking
Explanation:
Based on the information provided within the question it can be said that the type of attack being described is called an Active Session Hijacking. Like mentioned in the question this refers to an attack on an active TCP/IP communication session, where the attacker gains access to the communication and assumes the identity of the user that has been hijacked and disconnected.
Out of the choices given, the one that must result in a decrease in population is a decreased birth rate and increased emigration. The correct answer is B.