9.1.2 Synchronous and asynchronous transmission

• What is synchronous transmission synchronized with?

  Clock signal
• In synchronous transmission, data is transmitted in blocks or frames.
• What marks the beginning and end of each data packet in asynchronous transmission?

  Start and stop bits
• Asynchronous transmission requires a clock signal for synchronization.

  False
• In asynchronous transmission, each data packet includes a start bit and a stop bit
• What is the key difference in synchronization between synchronous and asynchronous transmission?

  Clock signal vs. no signal
• Asynchronous transmission uses a continuous data stream.

  False
• The efficiency of synchronous transmission is higher due to lower overhead per byte
• What is a disadvantage of synchronous transmission?

  Requires precise synchronization
• A key advantage of asynchronous transmission is its flexibility in handling varying data transfer speeds
• Why is asynchronous transmission more cost-effective than synchronous transmission?

  Requires simpler hardware
• Synchronous systems can be more expensive
• Synchronous transmission minimizes timing errors due to continuous data flow.
• Asynchronous transmission allows devices to communicate at varying speeds
• Asynchronous transmission is more susceptible to timing errors than synchronous transmission.
• What is the key feature of synchronous transmission?

  Clock signal
• In high-definition video conferencing, synchronous transmission ensures smooth real-time communication.
• Synchronous transmission requires precise synchronization between sender and receiver.
• What type of signal is required in synchronous transmission for synchronization?

  Clock signal
• Asynchronous transmission uses packets with start and stop bits to synchronize data.
• Asynchronous transmission does not require a clock signal.
• Synchronous transmission leads to faster data transfer rates due to continuous data flow and a clock signal.
• What is one disadvantage of synchronous transmission?

  Complexity
• Match the advantage with its corresponding disadvantage in asynchronous transmission:

  Flexibility ↔️ Lower Efficiency

  Simplicity ↔️ Higher Error Rate

  Cost-effectiveness ↔️ Slower Speed
• Synchronous RAM (SRAM) uses an internal clock to enable rapid data access.
• What distinguishes asynchronous transmission from synchronous transmission in terms of data synchronization?

  No clock signal
• In email, asynchronous transmission enables offline sending and receiving.