Chapter 2

What is the typical size of a data packet?

• 32 KiB

• 64 KiB

• 128 KiB

• 256 KiB

What is the main disadvantage of packet switching?

• Data can be lost and need to be re-sent

• It is less reliable than simplex mode

• It is slower than serial transmission

• It requires more bandwidth

Which mode allows data to be sent in both directions simultaneously?

• Simplex

• Serial

• Half-duplex

• Full-duplex

What does the header of a data packet typically contain?

• The actual data

• Error checking information

• Sender and receiver IP addresses

• The trailer information

Which type of data transmission sends data one bit at a time?

• Half-duplex

• Full-duplex

• Serial

• Parallel

What is a key feature of USB data transmission?

• Requires a special driver for every device

• Only supports simplex mode

• Can only transmit data, not power

• Supports both half-duplex and full-duplex

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

• To store the payload

• To check for errors

• To indicate the packet size

• To identify the sender

Which of the following is a method of error detection?

• Packet Switching

• Data Packet

• Echo Check

• Payload Check

What does 'half-duplex' mean in data transmission?

• Data is sent in parallel

• Data can only be sent in one direction

• Data can be sent in both directions at the same time

• Data can be sent in both directions, but not at the same time

What is the main advantage of parallel data transmission?

• Easier to implement

• Less expensive

• Faster data transmission

• More reliable over long distances