Data Transmission Methods and Characteristics

The video tutorial explains the transmission of binary values between computers, focusing on parallel half-duplex and serial duplex data transmission methods. It covers the addition of parity bits to binary values, the advantages and disadvantages of parallel and serial transmission, and the concept of half-duplex and duplex communication. The tutorial also highlights the drawbacks of parallel transmission, such as data skew over long distances and higher setup costs, while contrasting it with the benefits of serial transmission.

What is the purpose of adding a parity bit to a 7-bit binary value?

• To increase the data size

• To convert it into a hexadecimal value

• To ensure data is transmitted faster

• To check for errors in data transmission

In parallel, half-duplex data transmission, how is data sent?

• One bit at a time over a single wire

• Multiple bits at the same time over multiple wires

• Data is sent in both directions simultaneously

• Data is sent only in one direction permanently

What is a major drawback of parallel data transmission?

• It is very cheap to set up

• Bits may arrive out of order

• It works well over long distances

• It uses only one wire

Why is serial data transmission preferred over long distances?

• It uses multiple wires

• It is more expensive to set up

• It is faster than parallel transmission

• Bits arrive in the correct order

How does parallel data transmission affect the order of bits?

• Bits always arrive in the correct order

• Bits may arrive out of order due to different transfer rates

• Bits are sent one at a time

• Bits are sent in both directions simultaneously

What does duplex data transmission allow?

• Data to be sent in both directions simultaneously

• Data to be sent over multiple wires

• Data to be sent in one direction only

• Data to be sent faster than parallel transmission

In serial data transmission, how is data sent?

• Data is sent using multiple wires

• Multiple bits at a time over multiple wires

• Data is sent in one direction only

• One bit at a time over a single wire

What is a disadvantage of serial data transmission compared to parallel?

• It has a slower data transfer rate

• Bits may arrive out of order

• It requires multiple wires

• It is more expensive to set up

Which type of data transmission is more cost-effective to set up?

• Serial data transmission

• Parallel data transmission

• Half-duplex data transmission

• Duplex data transmission

What is a key advantage of using serial data transmission?

• It allows for faster data transfer

• It ensures bits arrive in the correct order

• It uses multiple wires for transmission

• It is more expensive to set up