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