IGCSE 1 0478 CompSci - Chapter 1 Data Transmission

What is serial transmission?

• Sending data in reverse order over a communication channel.

• Sending data one bit at a time over a communication channel.

• Sending data in parallel over multiple communication channels.

• Sending data in random order over a communication channel.

Explain the difference between serial and parallel transmission.

• Serial transmission sends data simultaneously over multiple channels, while parallel transmission sends data bit by bit over a single channel.

• Serial transmission sends data bit by bit over a single channel, while parallel transmission sends multiple bits simultaneously over multiple channels.

• Serial transmission is faster than parallel transmission.

• Parallel transmission is more error-prone than serial transmission.

What is parallel transmission?

• Receiving information through a wireless connection

• Transmitting data in a zigzag pattern over multiple cables

• Sending multiple bits simultaneously over separate channels within the same cable or connection.

• Sending data in a sequential manner over a single channel

Describe the concept of simplex transmission.

• In simplex transmission, data flows in both directions simultaneously.

• Simplex transmission involves wireless communication only.

• Simplex transmission allows for bidirectional data flow.

• In simplex transmission, data flows in one direction only.

Differentiate between simplex and duplex transmission.

• Simplex transmission is faster than duplex transmission.

• Duplex transmission is unidirectional, allowing data to flow in one direction only.

• In simplex transmission, data flows in one direction only, while in duplex transmission, data flows in both directions simultaneously.

• Simplex transmission allows data to flow in both directions simultaneously.

What is duplex transmission?

• Simplex communication where data can flow in one direction only.

• Half-duplex communication where data can flow in one direction at a time.

• Full-duplex communication where data can flow in both directions simultaneously.

• Multiplex communication where data can flow in multiple directions simultaneously.

Explain the concept of half-duplex transmission.

• Half-duplex transmission is a communication method where data can flow in both directions, but not simultaneously.

• Half-duplex transmission is a wireless communication method. Where data can flow in the direction that is needed.

• Half-duplex transmission involves data transmission through optical fibers.

• Half-duplex transmission allows data flow in one direction only. Except if the data is greater in size.

How does half-duplex transmission differ from full-duplex transmission?

• Half-duplex transmission allows data flow in both directions but not simultaneously, while full-duplex transmission allows data flow in both directions simultaneously.

• Half-duplex transmission is faster than full-duplex transmission, while full-duplex transmission is slower.

• Half-duplex transmission allows data flow in one direction only, while full-duplex transmission allows data flow in both directions. This is a very effective solution for data flow.

• Half-duplex transmission is used for wireless communication, while full-duplex transmission is used for wired communication.

What are the advantages of serial transmission over parallel transmission?

• Fewer wires, less signal interference, cost-effective

• Faster data transfer, more reliable, higher bandwidth

What are the disadvantages of serial transmission compared to parallel transmission?

• Slower data transfer rates

• Faster data transfer rates

• Less susceptible to interference

• Higher cost of implementation