Lecture 5

Question 1

What is the Metcalfe’s Law?

Answer 1

Network value is exponentially increasing depending on the number of users

Question 2

What are the networking and communication trends?

Answer 2

1. convergence
2. broadband
3. broadband wireless

Question 3

What are the business value impacts of the telecommunications and networking?

Answer 3

1. declining transaction costs
2. declining agency costs
3. increased agility
4. higher quality management decisions
5. declining geographical barriers

Question 4

What is a protocol?

Answer 4

Defines the format and order of messages exchanged between 2 communicating entities, and the actions taken on receipt or transmission of a message

Question 5

What is the characteristics of protocol?

Answer 5

If you use a different format(protocol), you cannot communicate with the other person

Question 6

How does a protocol work?

Answer 6

computer tries to connect to the other server to make communication by requesting the server
but if the other server rejects, then you cannot communicate

Question 7

What are the major components in a simple network?

Answer 7

1. client and server computers
2. network interfaces (NICs)
3. connection medium
4. networking operating system (NOS)
5. Hubs, switches, routers

Question 8

What are the key digital networking technologies?

Answer 8

1. client/server computing
2. packet switching
3. network architecture (OSI and TCP/IP and connectivity)