Chapter 4 140-151

Question 1

What is TCP/IP

Answer 1

transmission control protocol/internet protocol

Question 2

What does it mean to say our network runs IP

Answer 2

the network runs all the sub protocols in TCP/IP

Question 3

what are three advantages of TCP/IP

Answer 3

1. routable (data has a network layer address that can be read), 2. open source, 3. flexible – can run on any machine

Question 4

What are the four layers of TCP/IP (ATIN)

Answer 4

application, transport, internet, network interface

Question 5

What is the application layer?

Answer 5

applications gain access to the internet via this layer

Question 6

What is the transport layer

Answer 6

provides flow control, error checking, sequencing

Question 7

What is the internet layer?

Answer 7

addressing and routing (IP internet protocol etc)

Question 8

What is Network interface layer?

Answer 8

formats data and transmits to network interface

Question 9

Why is TCP/IP more practical than OSI?

Answer 9

OSI is theoretical but TCP/IP was developed after the internet was up and running

Question 10

What are the TCP/IP core protocols?

Answer 10

TCP Transmission control protocol and IP Internet protocol

Question 11

What does the transport control protocol do?

Answer 11

gives reliable data delivery services

Question 12

What does connection-oriented mean?

Answer 12

you must have a connection before the protocol starts to work.

Question 13

What is sequencing and checksums?

Answer 13

the computer making sure that the receiving end understood the message