Understanding Data Transmission Methods

What are the main components of a data packet?

• Header, Payload, Footer

• Header, Body, Trailer

• Header, Content, End

• Start, Middle, End

How is a data packet structured?

• A data packet is structured with a header, payload, and footer.

• A data packet includes only the payload and no other components.

• A data packet is structured with a single block of data.

• A data packet consists of only a header and footer.

What is the purpose of packet switching?

• The purpose of packet switching is to efficiently transmit data over a network by breaking it into smaller packets that can be routed independently.

• To ensure data is sent in a continuous stream without interruption.

• To encrypt data for secure transmission over the internet.

• To store data packets in a central location before sending them out.

Explain the difference between serial and parallel data transmission.

• Serial transmission is faster than parallel transmission; parallel transmission is slower.

• Serial transmission is one bit at a time; parallel transmission is multiple bits at once.

• Serial transmission sends multiple bits at once; parallel transmission sends one bit at a time.

• Parallel transmission is used for long distances; serial transmission is used for short distances.

What does simplex communication mean?

• Simplex communication requires a feedback channel.

• Simplex communication is a method of broadcasting signals.

• Simplex communication allows for two-way communication.

• Simplex communication is a one-way communication method.

Define half-duplex communication.

• Half-duplex communication is a one-way communication method only.

• Half-duplex communication transmits data in bursts without direction control.

• Half-duplex communication is a type of communication where data can be transmitted in both directions, but only one direction at a time.

• Half-duplex communication allows simultaneous data transmission in both directions.

What is full-duplex communication?

• Full-duplex communication is a mode of communication where data can be transmitted in both directions simultaneously.

• Full-duplex communication requires a physical connection for each direction.

• Full-duplex communication is limited to one device at a time.

• Half-duplex communication allows data to be sent in one direction only.

What role does a Universal Serial Bus (USB) play in data transmission?

• USB is primarily used for audio output.

• USB is a type of wireless data transmission technology.

• USB plays a crucial role in data transmission by connecting devices and enabling data transfer and power supply.

• USB connects devices only for charging purposes.

What is a parity check in error detection?

• A parity check is a technique for data compression.

• A parity check is used to encrypt messages for security.

• A parity check is an error detection method that uses a parity bit to indicate the evenness or oddness of the number of 1s in a binary message.

• A parity check is a method to increase data transmission speed.

How does a checksum work for error detection?

• A checksum only works for data compression.

• A checksum identifies the sender of the data.

• A checksum is used to encrypt data during transmission.

• A checksum detects errors by comparing calculated values before and after data transmission.