CN Unit I

6. unit used in Data Link Layer
8. when telephone calls between employees are carried out using the computer network
9. refers to the collection of routers and communication lines owned by the network operator
10. overloaded network
11. another name for IEEE 802.11
15. formed when distinct networks are interconnected
17. is passed between the sender and the receiver
19. an agreement between the communicating parties on how communication is to proceed
21. spans a large geographical area, often a country or continent
22. when devices communicate over the range of a person

1. transmission to a subset of the machines
2. It allows a packet to be addressed to all destinations by using a special code in the address field
3. specified by a set of primitives (operations) available to a user process to access the service
4. Doing business with consumers over the Internet
5. It allows companies to track users' activities in cyberspace
7. defines which primitive operations and services the lower layer makes available to the upper one
12. wires up an entire city
13. another name for IEEE 802.16
14. another name for IEEE 802.3
16. Point-to-point transmission with one sender and one receiver
18. used to join the individual networks at different sites into one extended network
20. They are privately-owned networks within a single building or campus of up to a few kilometers in size