Data Transmission Quiz

What is packet switching?

• A method where data is sent as one continuous stream

• A method where data is broken into packets and sent independently

• A type of error detection system

• A form of encryption protocol

Which component of a data packet contains the IP addresses?

• Payload

• Footer

• Header

• Trailer

What is a characteristic of simplex data transmission?

• Data flows in both directions simultaneously

• Data flows in both directions alternately

• Data flows in one direction only

• Data flows through multiple channels

In parallel data transmission, how is data sent?

• One byte at a time through multiple wires

• One bit at a time through a single wire

• Through wireless connections only

• Through optical fibers only

What is a limitation of parity checks?

• They can't be used with binary data

• They're too expensive to implement

• They can't detect single bit errors

• They are too slow

Which type of data transmission is used in a walkie-talkie?

• Full-duplex

• Half-duplex

• Parallel

• Simplex

What is a characteristic of USB connections?

• They require manual configuration

• They are wireless only

• They are automatically detected

• They have unlimited cable length

In symmetric encryption, what is true about the encryption key?

• It's publicly available to everyone

• It's different for encryption and decryption

• The same key is used for both processes

• It requires multiple keys

What is an echo check?

• A method of error detection using checksums

• A process where the receiver returns data for verification

• A type of encryption protocol

• A form of parity checking

What is the purpose of a trailer in a data packet?

• To store the actual data

• To mark the end of the packet

• To store IP addresses

• To calculate checksums