Data Transmission and Error Detection Quiz

What is packet switching?

• A method of data transmission where messages are broken down into small pieces known as packets

• A method of data compression for faster transmission

• A method of encryption used for secure data transfer

• A method of error correction in data transmission

What are the three parts of a packet in data transmission?

• Header, Body, Footer

• Header, Data, Trailer

• Header, Payload, Footer

• Header, Payload, Trailer

Which method of data transmission involves transferring one bit at a time over a single wire?

• Parallel Data transmission

• Synchronous Data transmission

• Serial Data transmission

• Asynchronous Data transmission

What is the purpose of parity checking in data transmission?

• To add an extra bit to the data packet for error detection

• To encrypt the data for secure transmission

• To compress the data for faster transfer

• To convert the data into a different format

What is the main advantage of using Automatic Repeat Request (ARQ) in error correction?

• It converts the data into a different format

• It compresses the data for faster transfer

• It encrypts the data for secure transmission

• It continuously resends the packet until received correctly

What is the purpose of Checksum/Hash Sum in data transmission?

• To compute a numerical value from the number of set/unset bits in a message for error detection

• To encrypt the data for secure transmission

• To compress the data for faster transfer

• To convert the data into a different format

What is the difference between symmetric and asymmetric encryption?

• Asymmetric encryption is used for data compression

• Symmetric encryption is faster than asymmetric encryption

• Symmetric encryption is more secure than asymmetric encryption

• Symmetric encryption uses the same key for encryption and decryption, while asymmetric encryption uses different keys

What is the purpose of Authentication in data transmission?

• To compress the data for faster transfer

• To encrypt the data for secure transmission

• To verify that data comes from a trusted source

• To convert the data into a different format

What is the role of Error Correcting Code (ECC) in data transmission?

• To encode the data before transmission and recover the original data at the receiver end

• To compress the data for faster transfer

• To add an extra bit to the data packet for error detection

• To convert the data into a different format

What is the unit of measure for Transmission Rate in data transmission?

• Bytes/second

• Bits/second

• Hertz

• Watts