Chapter 1 Introduction To TCP/IP Networking

Question 1

What is a network model

Answer 1

A network model reflects a design or architecture to accomplish communication between different systems. Network models are also referred to as stacks or protocol suites. Examples of network models include tcp/ip and the OSI model.

Question 2

What is ISO

Answer 2

ISO stands for international organization for standardization. They created the OSI model (open systems interconnection) their goal is to standardize data networking protocols to allow communication among all computers across the planet.

Question 3

TCP/IP model

Answer 3

Application, Transport, Network, Data link , and physical.

Question 4

What are the two most common transfer layer protocols

Answer 4

TCP and UDP

Question 5

What is a same layer interaction?

Answer 5

When a particular layer on one computer wants to communicate with the same layer on another computer the two computers use headers to hold the information they want to communicate.

Question 6

What is an adjacent layer interaction?

Answer 6

How one computer, two adjacent layers, and networking architectural model work together with the lower layer providing services to the higher layer.

Question 7

What are the 5 layers of the TCP/IP model

Answer 7

Application, Transport, Network, data link, physical

Question 8

What is data called at the bottom layers of the TCP/IP model

Answer 8

Layer 2: frame
Layer 3: packet
Layer 4: segment

Question 9

What is data called in the OSI model

Answer 9

Pdu (protocol data unit) and the number of the respective layer ie l1 pdu, l2 pdu etc

Question 10

What is De-encapsulation?

Answer 10

on a computer that receives data over a network the process on which the device interprets the lower layer headers and when finished with each header, remove the header revealing the next higher layer pdu.