Basic Computer Networking Skill Test

Which of the following statement is incorrect? Which of the following statement is incorrect?

1 Mark(s)

The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission.
Half duplex line is a communication line in which data can move in two directions, but not at the same time.
Teleprocessing combines telecommunications and DP techniques in online activities
Batch processing is the preferred processing mode for telecommunication operation

Which of the following signal is not standard RS-232-C signal? Which of the following signal is not standard RS-232-C signal?

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VDR VDR
RTS RTS
CTS CTS
DSR DSR

The transmission signal coding method of TI carrier is called The transmission signal coding method of TI carrier is called

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Bipolar Bipolar
NRZ NRZ
Manchester Manchester
Binary Binary

The interactive transmission of data within a time sharing system may be best suited to The interactive transmission of data within a time sharing system may be best suited to

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simplex lines simplex lines
half-duplex lines half-duplex lines
full duplex lines full duplex lines
biflex-lines biflex-lines

Which of the following does not allow multiple uses or devices to share one communication line? Which of the following does not allow multiple uses or devices to share one communication line?

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doubleplexer doubleplexer
multiplexer multiplexer
concentrator concentrator
controller controller

Which of the following is an advantage to using fiber optics data transmission? Which of the following is an advantage to using fiber optics data transmission?

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resistance to data theft resistance to data theft
fast data transmission rate fast data transmission rate
low noise level low noise level
all of above all of above

Which of the following statement is incorrect? Which of the following statement is incorrect?

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Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line
HDLC is a standard synchronous communication protocol.
RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data
RTS/CTS is the way the terminal indicates ringing

Which of the following is not a transmission medium? Which of the following is not a transmission medium?

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. telephone lines . telephone lines
coaxial cables coaxial cables
modem modem
microwave systems microwave systems

Which of hte following is considered a broad band communication channel? Which of hte following is considered a broad band communication channel?

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coaxial cable coaxial cable
fiber optics cable fiber optics cable
microwave circuits microwave circuits
all of above all of above

Which of the following is required to communicate between two computers? Which of the following is required to communicate between two computers?

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communications software communications software
protocol protocol
communication hardware communication hardware
all of above including access to transmission medium

The channel in the data communication model can be The channel in the data communication model can be

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postal mail services postal mail services
telephone lines telephone lines
radio lines radio lines
any of the above any of the above

Terminals are required for Terminals are required for

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real-time, batch processing & time-sharing
real time, time-sharing & distributed message processing
real time, distributed processing & manager inquiry
real-time, time sharing & message switching

The receive equalizer reduces delay distortions using a The receive equalizer reduces delay distortions using a

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tapped delay lines tapped delay lines
gearshift gearshift
descrambler descrambler
difference engine difference engine

An example of digital, rather than analog, communication is An example of digital, rather than analog, communication is

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DDD DDD
DDS DDS
WATS WATS
DDT DDT

Ina synchronous modem, the receive equalizer is known as Ina synchronous modem, the receive equalizer is known as

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adaptive equalizer adaptive equalizer
impairment equalizer impairment equalizer
statistical equalizer statistical equalizer
compromise equalizer compromise equalizer

Number of bits per symbol used in Baudot code is Number of bits per symbol used in Baudot code is

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What is the main difference between DDCMP and SDLC? What is the main difference between DDCMP and SDLC?

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DDCMP does not need special hardware to final the beginning of a message
DDCMP has a message header DDCMP has a message header
SDLC has a IP address SDLC has a IP address
SDLC does not use CRC SDLC does not use CRC

Which of the following transmission systems provide the highest data rate to in individual device? Which of the following transmission systems provide the highest data rate to in individual device?

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computer bus computer bus
telephone lines telephone lines
voice and mode voice and mode
lease lines lease lines

A data terminal serves as an A data terminal serves as an

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Effector Effector
sensor sensor
both a and b both a and b
neither a nor b neither a nor b

A protocol is a set of rules governing a time sequence of events that must take place A protocol is a set of rules governing a time sequence of events that must take place

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between peers between peers
between an interface between an interface
between modems between modems
across an interface across an interface

Basic Computer Networking Skill Test : Question 1 of 20