Chapter 1 - Data Communications and Networking

Question 1

Name the 4 characteristics that the data communication systems depend on

Answer 1

1. Delivery: (data delivered to correct destination/user and no others)
2. Accuracy: data delivered accurately without errors.
3. Timeliness: Data delivered quickly and in the correct order
4. Jitter: Variation in packet arrival time (even rate when sent)

Question 2

Name the 4 topology configuration types and their connection type

Answer 2

1. Mesh Topology: Point-to-point
2. Star Topology: Point-to-point
3. Bus Topology: Multi-point
4. Ring Topology: Point-to-point

Question 3

How is a Local Area Network (LAN) defined?

Answer 3

It is defined by the geometric size of the network

Question 4

How many connections do n devices have in a mesh topology?

Answer 4

A mesh topology has n-1 connections.

i.e. 6 devices in a mesh topology have 5 connections