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Data and Digital Communications

Welcome to  Data and Digital Communications. The quiz will randomly run 20 questions from Data and Digital Communications which you have to answer in 10 minutes.

After 10 minutes, your quiz will automatically be submitted and scored.

You can retake the quiz as many times as you want and a different set of questions will be given. The answers will also be randomly arrange.

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Which of the following layer protocols are responsible for user and the application programme support such as passwords, resource sharing etc?

A device that links two homogenous packet-broadcast local networks is __________

Datagrams using header extension are called __________

Terminators are used in ________ topology

Protocols in which the sender waits for a positive acknowledgement before advancing to the next data item are often called ___________

In ______ topology if the computer cable is broken, networks get down

The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9- bit frames is approximately equal to __________

A _________ network configuration in which all data/information pass through a central computer is star network

The simultaneous transmission of data to a number of stations is known as ____________

For large networks _____ topology is normally used

Protocols in which the sender sends one frame and then waits for an acknowledgement before proceeding are called __________

A distributed network configuration in which all data/information pass through a central computer is _______ network

X.25 is an example of __________ network

________ layer decides which physical path the data should take.

Which of the following condition is used to transmit two packets over a medium at the same time?

What is the maximum data capacity of STP?

The number of oscillations per second of a wave is called its ______

Point-to-point transmission with one sender and one receiver is sometimes called ________

________ bursting allows a sender tot transmit a concatenated sequence of multiple frames in a single transmission.

A modem that is attached to the telephone system by jamming the phone,s handset into two flexible receptacles in the coupler


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