week 8

B3 Issues relating to transmission of data

How the features and processes of data transmission affect the use and performance of IT systems.

• Protocols used to govern and control data transmission for common tasks:

o email

o voice and video calls over the internet

o web pages

o secure payment systems.

• Security issues and considerations when transmitting data over different connection types

and networks.

• Factors affecting bandwidth and latency.

• The implications of bandwidth and latency on the use and performance of an IT system.

• Types of compression:

o lossy

o lossless.

• The applications and implications of data compression.

• The use and implications of codecs when using and transmitting audio and video in

digital format.

Last Updated
2021-04-20 15:17:48