1. A is the physical path over which a message travels.

Answer. Medium

2. Which organization has authority over interstate and international commerce in the communications field ?

Answer. FCC

3. Which is not a network edge device?

Answer. Switch

4. A set of rules that governs data communication ?

Answer. Protocols

5. Three or more devices share a link in connection.

Answer. Multipoint

6. When collection of various computers seems a single coherent system to its client, then it is called ?

Answer. distributed system

7. A 4 byte IP address consists of

Answer. network address & host address

8. In virtual circuit network each packet contains

Answer. a short VC number

9. Which routing algorithms can be used for network layer design?

Answer.
• shortest path algorithm
• distance vector routing
• link state routing

10. Which is not correct in relation to multi-destination routing ?

Answer. data is not sent by packets

10. A subset of a network that includes all the routers but contains no loops is called

Answer. spanning tree

11. Which one algorithm is not used for congestion control?

Answer. routing information protocol