G9 Data Transmission and Error Detection Quiz

Which of the following is an example of serial transmission?

• Data sent one bit at a time over a single channel

• Data sent in parallel over multiple channels

• Data sent in blocks of 8 bits

• Data sent through fiber optic cables

Which of the following is a characteristic of parallel transmission?

• It is slower than serial transmission

• It sends data one bit at a time

• It requires more wires for transmission

• It is mainly used for long-distance communication

What is full-duplex transmission? Provide an example of where it might be used.

Which of the following error detection methods uses a parity bit?

• CRC (Cyclic Redundancy Check)

• Checksum

• Parity check

• Hamming Code

Explain the difference between synchronous and asynchronous data transmission.

Which of the following error detection methods is most commonly used in network protocols, such as Ethernet?

• Parity bits

• Checksum

• Hamming code

• Cyclic Redundancy Check (CRC)

What does a checksum do in error detection?

What is a disadvantage of parallel transmission compared to serial transmission?

• Higher speed over long distances

• More prone to signal degradation over long distances

• Easier to implement

• Requires less electrical power

Describe the Hamming code and how it helps in error correction.

What is the purpose of a start bit and stop bit in asynchronous transmission?