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WorksheetsData Communications Quiz 1-ICE 3203
Total questions: 20
Worksheet time: 3mins
Which of the following best defines data communications?
The process of storing data on a hard drive.
The exchange of data between two or more devices.
The manipulation of data within a computer.
The encryption of data for security.
What is the primary goal of data communications?
To ensure data security.
To facilitate the exchange of information.
To maximize network bandwidth.
To minimize data storage requirements.
Which component is responsible for converting data into signals suitable for transmission?
Receiver
Transmitter
Protocol
Medium
The physical path over which data is transmitted is known as the:
Protocol
Signal
Medium
Interface
Which characteristic of data communication refers to the correctness of the transmitted data?
Delivery
Accuracy
Timeliness
Jitter
"Timeliness" in data communications refers to:
The speed of data transmission.
The arrival of data at the destination within a specified time.
The security of the transmitted data.
The reliability of the communication channel.
Variations in the packet arrival time are referred to as:
Latency
Throughput
Jitter
Bandwidth
Which of the following is NOT a fundamental characteristic of a data communication system?
Delivery
Accuracy
Complexity
Timeliness
What does "protocol" refer to in data communications?
The physical medium used for transmission.
A set of rules governing data exchange.
The hardware components of a network.
The speed of data transmission.
Which of the following is an example of a guided transmission medium?
Radio waves
Microwave
Optical fiber
Infrared
Which of the following is an example of an unguided transmission medium?
Coaxial cable
Twisted-pair cable
Radio waves
Optical fiber
What is the role of a receiver in data communication?
To encode data into signals.
To transmit signals over the medium.
To convert signals back into data.
To establish a connection between devices.
Which of the following describes the direction of data flow in a simplex communication?
Two-way simultaneous.
One-way only.
Two-way alternating.
None of the above.
In a half-duplex communication, data can be transmitted:
In both directions simultaneously.
In one direction at a time.
Only from sender to receiver.
Only from receiver to sender.
Full-duplex communication allows data to be transmitted:
In one direction only.
In both directions simultaneously.
Alternately in both directions.
None of the above.
Which network topology connects all devices to a central hub or switch?
Bus
Star
Ring
Mesh
In a bus topology, all devices are connected to a:
Central hub
Single cable
Ring
Mesh network
Which topology offers high redundancy by providing multiple paths between devices?
Star
Bus
Ring
Mesh
The internet is an example of a:
Local Area Network (LAN)
Wide Area Network (WAN)
Metropolitan Area Network (MAN)
Personal Area Network (PAN)
Which of the following is NOT a type of network?
LAN
WAN
Protocol
MAN
