In a mobile ad hoc network (MANET), how are messages typically routed?Through a centralized serverUsing predefined static routesDynamically, based on the network topology at the timeDirectly from sender to receiver without hopping

In a Mobile Ad Hoc Network (MANET), messages are typically routed dynamically, based on the network topology at the time. This is because MANETs are characterized by their constantly changing network topology.

Here's a step-by-step explanation:

1. When a node wants to send a message to another node, it first checks its routing table to see if it has a path to the destination node.

2. If it does not have a path, it initiates a route discovery process. This involves broadcasting a route request packet to its neighbors.

3. The neighbors then forward the route request to their neighbors, and this process continues until the route request reaches the destination node or a node that has a route to the destination.

4. Once a route is found, the node can send the message along this path. If the network topology changes during transmission (for example, if a node moves out of range), the process is repeated to find a new route.

5. The routing table is updated dynamically to reflect changes in the network topology. This allows MANETs to adapt to changing conditions and maintain communication between nodes.

So, the answer is: Dynamically, based on the network topology at the time.