Introduction to Data Communications

What is the term used for communication at a distance?

• Telecommunication

• Local communication

• Remote communication

• Data communication

What must the system ensure regarding data delivery?

• Data must be delivered to the correct destination

• Data must be delivered accurately

• Data must be delivered in a timely manner

• Data must maintain consistent flow

What is the role of a protocol in data communications?

• It governs data communications

• It is the physical path for data

• It is the device that sends data

• It is the information to be communicated

What are the three primary data flow modes?

• Simplex, Half Duplex, Full Duplex

• Unidirectional, Bidirectional, Multidirectional

• Analog, Digital, Hybrid

• Serial, Parallel, Asynchronous

What is the purpose of a digital-to-analog converter?

• To convert binary data to sound waves

• To convert sound waves to binary data

• To store data in binary format

• To transmit data over a network

What is the ASCII code for the letter 'A'?

• 65

• 66

• 64

• 63

The information to be communicated in a data communication system is the ____

• medium

• protocol

• message

• transmission

In _____ transmission, the channel capacity is shared by both communicating devices at all times

• simplex

• half-duplex

• full-duplex

• half-simplex

How many components are in data communication?

• 2

• 3

• 4

• 5

Twisted pair, coaxial cable and fibre optic cable are examples of

• Wired Media

• Wireless Media

• Both wired and wireless

• None of the above