CSC 302 Network and Communication Midterm Exam

What is data communication?

• The process of transmitting and receiving data between two or more devices over a communication channel

• The process of converting analog signals into digital signals

• The process of encoding and decoding data

• The process of sharing information through the internet

Which protocol is commonly used for real-time delivery of audio and video data over UDP?

• RTP

• RTSP

• RTCP

• SIP

Which layer of the OSI model is responsible for managing access to the physical medium and addressing?

• Physical Layer

• 
  Network Layer

• Data Link Layer

• Transport Layer

What is the purpose of communication protocols?

• To ensure data can be exchanged reliably and efficiently

• To divide data into smaller packets

• To organize data into layers

• To establish a connection between devices

Which model is commonly used as a reference for understanding the layers of communication protocols?

• OSI model

• HTTP model

• TCP/IP model

• UDP model

What type of signals are continuous waveforms that can represent a wide range of values?

• Analog Signals

• Amplitude Signals

• Digital Signals

• requency Signals

What is the main function of the Transport Layer in the OSI model?

• Error detection and correction

• End-to-end communication and data transfer

• Routing and forwarding of data packets

• Establishing and terminating communication sessions

What are the components of data communication?

• Sender, Receiver, Medium/Channel, Protocol

• Modem, Router, Switch, Hub

• CPU, RAM, Hard Drive, Monitor

• Keyboard, Mouse, Printer, Scanner

Which protocol is used for web browsing and transferring web content?

• HTTP

• UDP

• TCP

• IP

How does data transmission occur?

• Bit by bit over a single communication channel

• Multiple bits simultaneously over separate communication channels

• Through wireless connections only

• Through physical cables only