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Data Communication Chapter One: Simplified Communications Model

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Data Communication Chapter One: Simplified Communications Model

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Questions and Answers

What is the main function of the transmitter in a simplified communications model?

Allocating transmission medium among users

Generating data for transmission

Accepting signals from the transmission system

Transforming and encoding information into electromagnetic signals (correct)

Which task is associated with ensuring that the transmission system is not overwhelmed?

Congestion control (correct)

Interfacing

Signal generation

Multiplexing

What is the role of the receiver in data communication?

Transforming and encoding information

Accepting signals from the transmission system (correct)

Allocating transmission medium among users

Generating signals from data

Why is synchronization important in communication?

To know when signals start and end Signup and view all the answers

What is the purpose of error detection and correction in communication systems?

To detect and fix errors that may happen during transmission Signup and view all the answers

Why is flow control necessary in data communications?

To ensure that the data source does not overwhelm the destination with information Signup and view all the answers

What is one of the benefits of addressing in a networked environment?

Ensuring unique identification for each system on the network Signup and view all the answers

Which task ensures that data is only received by the intended recipient?

Security measures Signup and view all the answers

Why is message formatting important in data communications?

To ensure that communicating parties agree on the form of transmitted data Signup and view all the answers

What is the main role of network management in data communications?

Planning for future growth and configuring the system Signup and view all the answers