G9 Data Transmission Part 2 Error Detection

Data can be transmitted through a channel without being corrupted or changed during transmission.

• True

• False

Data can only be transmitted using land communication networks.

• True

• False

Answer explanation

Data can also be transmitted using satellite back to earth.

Data can be corrupted or changed during transmission.

• True

• False

Tick all error - checking methods in data transmission.

• Parity checking

• Automatic Repeat Request

• Checksum

• Echo check

• Check Request Parity

An odd or even parity bit is allocated in each byte of data before transmission.

• Parity checking

• Automatic Repeat Request

• Checksum

• Echo check

• Check Request Parity

It is an error checking method where

an odd or even parity bit is allocated in each byte of data before transmission.

In this error checking method an ACKNOWLEDGEMENT and TIMEOUT messages are used.

• Parity checking

• Automatic Repeat Request

• Checksum

• Echo check

• Check Request Parity

In this error checking method an ACKNOWLEDGEMENT and TIMEOUT messages are used.

In this error checking method a value is attached to the end of the block of data. This value can indicate transmission errors.

• Parity checking

• Automatic Repeat Request

• Checksum

• Echo check

• Check Request Parity

In this error checking method a value is attached to the end of the block of data. This value can indicate transmission errors.