WN-Mobile ad-hoc network

1. What is a Mobile Ad-Hoc Network (MANET)?

• A network of mobile nodes connected by wireless links, without a fixed infrastructure
• A network of stationary nodes connected by wireless links, with a fixed infrastructure
• A network of stationary nodes connected by wired links, with a fixed infrastructure
• A network of stationary nodes connected by wired links, without a fixed infrastructure

2. What is the main advantage of a Mobile Ad-Hoc Network (MANET)?

• It provides connectivity in the absence of a fixed infrastructure
• It provides connectivity only in the presence of a fixed infrastructure
• It provides limited connectivity in the absence of a fixed infrastructure
• It provides limited connectivity only in the presence of a fixed infrastructure

3. What is the main challenge in routing in a Mobile Ad-Hoc Network (MANET)?

• The frequent changes in network topology due to the mobility of nodes
• The stability of network topology due to the immobility of nodes
• The limited bandwidth of wireless links
• The high bandwidth of wired links

4. What is the purpose of a routing protocol in a Mobile Ad-Hoc Network (MANET)?

• To maintain end-to-end communication between nodes by finding routes through the network
• To prevent communication between nodes by blocking routes through the network
• To maintain communication only between fixed nodes by finding routes through the network
• To prevent communication only between mobile nodes by blocking routes through the network

5. What is the difference between proactive and reactive routing in a Mobile Ad-Hoc Network (MANET)?

• Proactive routing maintains routes to all destinations at all times, while reactive routing finds a route only when needed
• Reactive routing maintains routes to all destinations at all times, while proactive routing finds a route only when needed
• Proactive routing finds routes to limited destinations at all times, while reactive routing finds a route to all destinations only when needed
• Reactive routing finds routes to limited destinations at all times, while proactive routing finds a route to all destinations only when needed

6. What is the main advantage of using a reactive routing protocol in a Mobile Ad-Hoc Network (MANET)?

• It reduces the overhead of maintaining routes to all destinations
• It increases the overhead of finding routes only when needed
• It increases the overhead of maintaining routes to all destinations
• It reduces the overhead of finding routes only when needed

7. What is the main disadvantage of using a proactive routing protocol in a Mobile Ad-Hoc Network (MANET)?

• It increases the overhead of maintaining routes to all destinations
• It reduces the overhead of finding routes only when needed
• It reduces the overhead of maintaining routes to all destinations
• It increases the overhead of finding routes only when needed

8. What is the main challenge in maintaining security in a Mobile Ad-Hoc Network (MANET)?

• The frequent changes in network topology due to the mobility of nodes
• The stability of network topology due to the immobility of nodes
• The limited resources of mobile nodes
• The high resources of stationary nodes