Data Communication Quiz

What are the four fundamental characteristics of a data communications system?

• Delivery, Accuracy, Timeliness, Jitter

• Speed, Efficiency, Security, Reliability

• Cost, Complexity, Scalability, Flexibility

• None of the above

What is the role of a protocol in data communications?

• To govern data communications

• To increase the speed of data transfer

• To encrypt data

• To compress data

What does jitter refer to in data communications?

• Variation in packet arrival time

• The speed of data transmission

• The strength of the signal

• The type of transmission medium

What is the definition of data in the context of data communications?

• Information presented in an agreed form

• A set of rules for communication

• The physical medium for transmission

• The device that sends the message

What are the two types of signals used in data transmission?

• Analog and Digital

• Wireless and Wired

• Compressed and Uncompressed

• Secure and Unsecure

What is the main purpose of the transmission medium?

• To carry the message from sender to receiver

• To encode the data

• To amplify the signal

• To store the data

What is the effect of attenuation in data transmission?

• Weakening of the signal over distance

• Interference from other signals

• Delay in signal transmission

• None of the above

What is the significance of the OSI Reference Model?

• It provides a framework for understanding data communication

• It is a protocol for data encryption

• It defines the hardware used in networking

• It is a type of transmission medium

What is the primary function of the sender in a data communication system?

• To send the data message

• To receive the data message

• To store the data

• To process the data

What type of noise is caused by irregular disturbances such as lightning?

• Impulse noise

• Thermal noise

• Crosstalk

• Intermodulation noise