Data Communication Questions - Free Practice Question, Quiz and Test

Q1.The communication between the modem and CTO obtains position on the analog channel of 5kHZ bandwidth

FALSE

TRUE

Q2.Every set of bit pattern is described

Code

ASCII

Coding

Unicode

Q3.The qualifier differential to PSK referes that

It uses phase shifts of a multiple of 90 degrees

None of these above

It uses phase shifts of 180 degrees

Phase shift is with reference to the previous bit transmitted

Q4.Checksums utilization _________ arithmetic

One's complement arithmetic

None of the above

Two's complement arithmetic

Q5.Full-duplex modems will not run on half duplex-channels

FALSE

TRUE

Q6.Communication software is commonly inserted in the computer operating system

TRUE

FALSE

Q7.Two binary values are made up of two different frequencies in

Amplitude-shift-keying

Phase-shift-keying

None of the above

Frequency-shift-keying

Q8.Data communications are the transformation of data through some

Protocols

Transmission medium

Linear medium

Network LAN

Q9.The RS-232D interface works Unipolar line encoding

FALSE

TRUE

Q10.Cyclic Redundancy Check (CRC) is the most powerful way for error discovery

TRUE

FALSE

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