McQ 12. With the development of telecommunications and information technology, there is a trend of so- called "three networks integration" in the world. Which of the following options does not belong one of the three networks?

1. Satellite communication network
2. Cable TV network
3. Computer network (mainly the Internet)
4. Traditional telecommunication network

13. What is the collection of rules, standards or conventions established for data exchange in computer networks?

a. Network protocol

b.Functional specification

c. protocol element

d. Architecture