CS IGCSE Y1_FA_DATA TRANSMISSION

1. When data is sent over a network, it is first:

• 1. A. Compressed into a file

• 1. B. Stored as a single block

• 1. C. Broken down into packets

• 1. C. Compressed into a file

A message sent to the receiver indicating that data has been received correctly (used in the ARQ error detection method)

• timeout

• ISBN 13

• Modulo-11

• Acknowledgement

USB stands for:

• Universal Serial Bus
• Unified Serial Bus
• Unique Serial Bus
• Unqualified Students Busk

Half Duplex transmission is where:

• Data can only be transmitted in one direction
• Data can be transmitted in one direction at a time
• Data can be sent both ways at the same time
• A made up term to confuse us

Full Duplex transmission is where:

• Data can only be transmitted in one direction
• Data can be transmitted in one direction at a time
• Data can be sent both ways at the same time
• A made up term to confuse us

Simplex transmission is where:

• Data can only be transmitted in one direction
• Data can be transmitted in one direction at a time
• Data can be sent both ways at the same time
• A made up term to confuse us

Parallel transmission is where

• 1 bit is transmitted at a time
• Data can only be transmitted in one direction at a time
• 8 bits are transmitted at the same time
• 8 elephants are ridden at the same time

An example of parallel transmission is:

• Using a USB to connect to your phone
• Sending data via bluetooth
• Connecting two parts of an IC
• Plugging in a mouse

Connecting a phone to a computer would use a serial or parallel connection?

• serial
• parallel

A walkie-talkie uses which type of transmission?

• Half Duplex

• Simplex

• Series

• Full duplex