[F3CS] Data Transmission

Multiple Select

Select the three parts of a data packet

• Header

• Packet ID

• Payload

• Trailer

Multiple Select

Select all the items that would appear in the data header

• ip address of the sender

• Error checking method

• hop number

• A method to identify the header of a data packet

Multiple Choice

Select the correct description of Cyclic Redundancy Check (CRCs)

• CRC is a type of computer processor used for complex calculations
• CRC is a data encryption method used to secure sensitive information
• CRC is an error-detecting code used to detect accidental changes to raw data by adding up the 1-bit and comparing it at the receiving end

• CRC is a network protocol used for data transmission between devices

Open Ended

Describe packet switching

Multiple Choice

Select the item below that is not an advantage of packet switching

• High data transmission rate

• No need for a single communication line

• If there are busy lines can simply re-route the packets

• Less error while live streaming

Open Ended

Why do we need a hop number in the header of the data packet?

Multiple Choice

What does asynchronous mean?

• In perfect harmony
• Not arriving at the same time or not synchronized

• Happening simultaneously
• Synchronized in real-time

Multiple Choice

Which is more reliable when transmitting data over long distance

• Parallel

• Serial

Multiple Choice

Which is less expensive

• Parallel

• Serial

Multiple Choice

Which has a faster data transmission speed?

• Parallel

• Serial

Multiple Choice

Which makes the data to arrive asynchronously

• Parallel

• Serial

Open Ended

Give one advantage and one disadvantage of using USB to transmit data