Communication and Networking Concepts

Define serial transmission and its advantages over parallel transmission.

• Parallel transmission is more reliable for long-distance communication than serial transmission.

• Serial transmission sends multiple bits simultaneously over multiple channels.

• Serial transmission requires more complex hardware than parallel transmission.

• Serial transmission is a method of sending data one bit at a time over a single channel, offering advantages such as reduced complexity, lower cost, and improved reliability over longer distances compared to parallel transmission.

Define parallel transmission and its disadvantages compared to serial transmission.

• Parallel transmission uses less hardware than serial transmission.

• Parallel transmission is more reliable than serial transmission.

• Parallel transmission is faster than serial transmission.

• Parallel transmission sends multiple bits at once but suffers from signal degradation, complexity, and timing issues compared to serial transmission.

What is synchronous data transmission?

• Synchronous data transmission occurs without any clock signal.

• Synchronous data transmission is a method of transmitting data where the sender and receiver are synchronized by a clock signal.

• Synchronous data transmission is only used in wireless communication.

• It is a method where data is sent in random intervals.

What is asynchronous data transmission?

• Asynchronous data transmission sends data in fixed-size packets only.

• Asynchronous data transmission is a method of data transmission where data is sent in an individual format with start and stop bits, allowing for variable timing.

• Asynchronous data transmission is a method where data is sent simultaneously over multiple channels.

• Asynchronous data transmission requires a constant clock signal for synchronization.

Compare synchronous and asynchronous data transmission.

• Synchronous transmission is used for long-distance communication only.

• Synchronous transmission uses start/stop bits, while asynchronous is continuous.

• Asynchronous transmission is faster than synchronous transmission.

• Synchronous transmission is clock-synchronized and continuous, while asynchronous transmission is irregular and uses start/stop bits.

What is the purpose of start bits in asynchronous data transmission?

• To indicate the end of a data frame.

• To signal the start of a data frame for synchronization.

• To provide error detection in the data stream.

• To increase the speed of data transmission.

What is the purpose of stop bits in asynchronous data transmission?

• To indicate the start of a data byte.

• To provide error correction during transmission.

• To increase the speed of data transfer.

• To signal the end of a data byte and ensure proper synchronization.

Define baud rate and its significance in communication.

• Baud rate is the number of signal changes per second, crucial for determining data transmission speed in communication.

• Baud rate is the maximum distance a signal can travel without degradation.

• Baud rate refers to the total amount of data transmitted in bytes per second.

• Baud rate is the frequency of the carrier wave used in radio communication.

Define bit rate and how it differs from baud rate.

• Bit rate is the number of signal changes per second; baud rate is the number of bits per second.

• Bit rate measures the speed of light; baud rate measures distance.

• Bit rate is only relevant for audio signals; baud rate applies to video signals.

• Bit rate is the number of bits per second; baud rate is the number of signal changes per second.

What is bandwidth and why is it important in networking?

• Bandwidth refers to the physical size of a network cable.

• Bandwidth is the maximum rate of data transfer in a network, crucial for performance and efficiency.

• Bandwidth is the distance data can travel in a network.

• Bandwidth is the amount of hardware in a network device.