Communication and Internet Technologies

What is data transmission?

• The process of encrypting data for secure transmission.

• The process of sending and receiving data over a communication channel or network.

• The process of converting data into a different format.

• The process of storing data in a database.

What are the different methods of data transmission?

• Satellite, microwave, and cellular transmission

• Wired, wireless, and optical transmission

• Serial, parallel, and multiplexed transmission

• Analog, digital, and hybrid transmission

What is a network protocol?

• A network protocol is a set of rules and conventions that govern the communication between devices in a network.

• A network protocol is a programming language used to write network applications.

• A network protocol is a physical device used to connect computers.

• A network protocol is a type of computer virus.

Name two commonly used network protocols.

• TCP, IP

• SMTP

• HTTP

• FTP

What is the purpose of a network protocol?

• The purpose of a network protocol is to make communication between devices unreliable.

• The purpose of a network protocol is to slow down communication between devices.

• The purpose of a network protocol is to enable reliable and efficient communication between devices.

• The purpose of a network protocol is to increase the complexity of communication between devices.

What is the difference between TCP and UDP?

• TCP guarantees reliable delivery of data packets, while UDP does not provide any delivery guarantee.

• TCP and UDP both provide reliable and ordered delivery of data packets.

• TCP and UDP are both transport layer protocols used for reliable data delivery.

• TCP provides reliable and ordered delivery of data packets, while UDP does not guarantee reliable delivery.

What is the OSI model?

• The OSI model is a software program used for network monitoring and troubleshooting.

• The OSI model is a protocol used for secure communication over the internet.

• The OSI model is a physical model that describes the layout of computer hardware components.

• The OSI model is a conceptual framework that standardizes the functions of a communication system into seven different layers.

Name the seven layers of the OSI model.

• Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Application, Presentation, Session, Transport, Network, Data Link, and Physical

• Physical, Data Link, Network, Transport, Presentation, Session, and Application

• Physical, Data Link, Network, Transport, Session, Presentation, and Application

What is the role of the physical layer in the OSI model?

• The physical layer is responsible for encrypting and decrypting data between devices.

• The physical layer is responsible for routing data between devices.

• The physical layer is responsible for managing network connections between devices.

• The physical layer is responsible for the transmission and reception of raw data between devices.

What is the role of the application layer in the OSI model?

• The role of the application layer in the OSI model is to provide network services to user applications.

• The application layer is responsible for error detection and correction.

• The application layer is responsible for routing data packets.

• The application layer is responsible for physical transmission of data.