Automatic Repeat Query (ARQ) Quiz

What is the primary purpose of Automatic Repeat Query (ARQ) in data transmission?

• To encrypt data for security

• To ensure data is transmitted without errors

• To prioritize data packets based on importance

• To compress data for faster transmission

Which of the following is a feature of ARQ that indicates data has been received correctly?

• Data encryption

• Positive acknowledgement

• Negative acknowledgement

• Data compression

What does a negative acknowledgement in ARQ signify?

• Data is compressed

• Data is encrypted

• Data has not been received correctly

• Data has been received correctly

What is the role of a cyclic redundancy check (CRC) in ARQ?

• To detect transmission errors

• To compress data

• To encrypt data

• To prioritize data packets

What action does the sender take if no acknowledgement is received within the timeout period in ARQ?

• Encrypts the data

• Compresses the data

• Resends the data

• Deletes the data