Methods of error detection：練習題

Which method of error detection involves the receiving computer sending the entire set of data back to the sender to be compared with the original copy?

A data transmission uses even parity. A parity block check is used for the following four bytes of data:

Byte 1: 10110010
Byte 2: 11100111
Byte 3: 10101010
Byte 4: 11001100

What should the calculated parity byte (the vertical parity check) be for these four bytes?

Which of the following best explains why an ARQ system uses a timeout mechanism?

Which of the following is a specific reason why errors might occur during the transmission of data between two devices?

A system uses even parity. If the following byte is received: 10110011, what can be concluded about the transmission?

Explain how a single parity bit is used in even parity checking to detect a single bit error during data transmission.

Compare checksum and parity check as methods of error detection, specifically explaining why a checksum is more effective at detecting multiple-bit errors in a large block of data.

In the context of Automatic Repeat Request (ARQ), explain the function of a timeout when a sender is waiting for an acknowledgement from the receiver.

A byte of data, $$10110010_2$$, is to be transmitted using even parity.

a) State the parity bit that would be added to this byte.

b) Explain how the receiving device uses parity checking to detect a single bit error in the transmitted data.

c) Identify one limitation of using a single parity bit for error detection.

Explain how a checksum is calculated and used to detect errors in a block of data during transmission. Your explanation should cover both the sender and receiver operations.