Solution

The correct answer is 3) A, B & D only.

Key Points

• Self-Organizing and decentralized: MANETs are self-configuring networks without the need for a centralized control. Nodes organize themselves dynamically.
• High Mobility of nodes: Nodes in MANETs are often mobile, leading to frequent changes in the network topology.
• Network Topology is dynamic and constantly changing: Due to the mobility of nodes, the network topology in MANETs changes frequently.

Additional Information

• MANETs do not require fixed infrastructure for their operation. They can function independently of any pre-existing infrastructure.
• There is no central controller required to manage network traffic in MANETs, which is a characteristic contrary to option E.
• MANETs are used in various applications such as military operations, disaster recovery, and mobile communication where a fixed infrastructure is not feasible.