Understanding Data Transmission

What is a data transmission protocol?

• A method for storing data in a database.

• A set of rules for transmitting data over a network.

• A type of software for managing network traffic.

• A hardware device used for data encryption.

Name three common data transmission protocols.

• TCP, UDP, HTTP

• IMAP

• SMTP

• FTP

What is the purpose of the TCP/IP protocol suite?

• To provide a graphical user interface for applications.

• To manage hardware resources in a computer.

• To secure data against unauthorized access.

• To enable communication and data exchange over the internet.

Explain the difference between synchronous and asynchronous transmission.

• Synchronous transmission is used for long-distance communication, while asynchronous is for short distances.

• Synchronous transmission is continuous and clock-synchronized, while asynchronous transmission is packet-based with start/stop bits.

• Asynchronous transmission is faster than synchronous transmission in all cases.

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

What is error detection in data transmission?

• Error detection is the method of compressing data for faster transmission.

• Error detection is the process of identifying errors in data transmission using techniques like checksums and CRC.

• Error detection is the technique used to encrypt data during transmission.

• Error detection is the process of correcting errors in data transmission.

List two common error detection methods.

• Data compression techniques

• Error correction codes

• Parity bits, Checksums

• Signal amplification methods

How does a checksum work in error detection?

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

• A checksum identifies errors by analyzing the data format only.

• A checksum is used to compress data before sending it.

• A checksum works by encrypting the data during transmission.

What is the role of the OSI model in network communication?

• The OSI model standardizes network communication into seven layers, facilitating interoperability and troubleshooting.

• The OSI model is used exclusively for wireless communication.

• The OSI model is a programming language for network applications.

• The OSI model defines hardware specifications for network devices.

Describe the layers of the OSI model.

• 1) Presentation, 2) Application, 3) Physical

• 1) Physical, 2) Data Link, 3) Network, 4) Transport, 5) Session, 6) Presentation, 7) Application

• 1) Data Link, 2) Transport, 3) Session

• 1) Application, 2) Network, 3) Internet

What is the difference between a client-server model and a peer-to-peer model?

• In a client-server model, all participants are equal, whereas in a peer-to-peer model, one participant controls the resources.

• The client-server model allows direct resource sharing, while the peer-to-peer model relies on a centralized server.

• The client-server model is used for file sharing, while the peer-to-peer model is used for web hosting.

• The client-server model relies on a centralized server for resource management, while the peer-to-peer model allows direct resource sharing among participants.