G9 Data Transmission & Error Detection Quiz

What type of data transmission occurs when data is sent one bit at a time in a single direction?

• Parallel Transmission

• Serial Transmission

• Synchronous Transmission

• Asynchronous Transmission

Which of the following is an example of parallel transmission?

• USB

• HDMI

• Ethernet

• Data transferred over a ribbon cable

Which transmission method is suitable for long-distance communication?

• Serial Transmission

• Parallel Transmission

• Asynchronous Transmission

• None of the above

Which of the following best describes synchronous transmission?

• Data is sent bit by bit with no clock signal.

• Data is transmitted continuously, synchronized to a clock signal.

• Data is sent at irregular intervals.

• None of the above

Which of the following is true about asynchronous transmission?

• Data is sent continuously with a clock signal.

• Data is sent without synchronization, using start and stop bits.

• It requires complex hardware.

• None of the above

Which method of transmission is the most efficient for local communication?

• Serial Transmission

• Parallel Transmission

• Asynchronous Transmission

• None of the above

Which of the following error detection techniques uses extra parity bits to detect errors?

• Parity Check

• Hamming Code

• CRC (Cyclic Redundancy Check)

• Checksum

Which of the following is an advantage of using synchronous transmission?

• High efficiency with no need for start and stop bits.

• It is easier to implement than asynchronous transmission.

• Low data transfer rate.

• More prone to errors.

What is the primary purpose of error detection in data transmission?

• To increase the transmission speed.

• To detect any corruption or alteration of the data.

• To improve the quality of data.

• To reduce the cost of communication.

Which of the following is true about the checksum method?

• It adds a parity bit to each byte.

• It sums all data values and sends the sum for comparison at the receiver.

• It detects only even numbers of errors.

• It uses a cyclic redundancy check to identify errors.