Computer Gk For All Competitive Exams Series #18 | Hindigk50k
Computer Gk For All Competitive Exams Series #18

Computer Gk For All Competitive Exams Series #18

कम्प्यूटर Computer Quiz | Computer GK/Knowledge | Computer General Knowledge Reference Books · Computer General Knowledge Questions and Answers Set 1 · Computer General Knowledge Questions, Computer GK in this post. We have updated the 50 questions and these are very important for exams. Top Computer General Knowledge Questions Answers

Computer Networks

  1. The transmission signal coding method of Tl carrier is

called

(1) NRZ (2) Bipolar√

(3) Manchester (4) Binary

  1. Which data communication method is used to transmit

the data over a serial communication link?

(1) simplex (2) half-duplex

(3) None of above

(4) band c

(5) full-duplex√

Computer Gk For All Competitive Exams Series #19

Computer Gk For All Competitive Exams Series #17

  1. What is the minimum number of wires needed to send

data over a serial communication link layer?

(1) 2 (2) 1√

(3) 4 (4) 6

(5) none of above

  1. Which of the following types of channels moves data

relatively slowly?

(1) narrow band channel√

(2) voice band challen

(3)- wide band channel

  1. Most data communications involving telegraph lines use:

(1) simplex lines

(2) wideband channel

(3) dialed service

(4) narrowband channel√

  1. A communications device that combines transmissions

from several I/O devices into one line is a

(1) concentrator

(2) modifier

(3) full-duplex line

(4) multiplexer√

  1. How much power (roughly) a light emitting diode can

couple into an optical fiber?

(1) 100 picowatts

(2) 440 microwatts

(3) 100 microwatts√

(4) 10 miliwatts

  1. The synchronous modems are more costly than the

asynchronous modems because

(1) they contain clock recovery circuits√

(2) they produce large volume of data

(3) they transmit the data with stop and start bits

(4) they operate with a larger bandwidth

(5) none of above

  1. Which of the following statement is correct?

(1) terminal section of a synchronous modem contains the

scrambler

(2) transmission section of a synchronous modern contains

the scrambler√

(3) receiver section of a synchronous modem contains the

scrambler

(4) control section of a synchronous modem contains the

scrambler

(5) none of the above

  1. In a synchronous modem, the digital-to-analog

converter transmits signal to the

(1) demodulator

(2) modulator

(3) equilizer√

(4) terminal

(5) none of aobve

  1. Which of the following communications lines is best

suited to interactive processing appJIcatjons?

(1) narrow band channel

(2) simplex lines

(3) mixed band channels

(4) full duplex lines√

(5) none of the above

  1. A remote batch-processing I operation in which data is

solely input to a central computer would require

(1) telegraphp line

(2) none of the above

(3) mixed bad channel

(4) all of above

(5) simplex lines√

  1. A band is always equivalent to

(1) a byte

(2) a bit

(3) 100 bits

(4) none of the above . √

(5) all of above

  1. The loss in signal power as light travels down the fiber is

called

(1) interruption

(2) progragation

(3) scattering

(4) attenuation√

(5) none of the above

  1. Avalanche photodiode receivers can detect bits of

transmitted data by receiving

(1) 200 photons√

(2) 100 photons

(3) 2000 photons

(4) 300 photons’

(5) none of the above

Computer Gk For All Competitive Exams Series #19

Computer Gk For All Competitive Exams Series #17

  1. Communiction circuits that transmit data in both

directions but not at the same time are operating in

(1) a simplex mode

(2) all the options

(3) a full duplex mode

(4) a half duplex mode√

(5) an asynchronous mode

  1. An example of a medium speed, switched

communications service is

(1) series 1000

(2) data phone 50

(3) All of the above

(4) ODD√

(5) none of the above

  1. In communication satellite,multiple repeaters are known as

(1) detector

(2) modulator

(3) transponders√

(4) stations

(5) none of the above

  1. While transmitting-odd-parity coded symbols, the number

of zeros in each symbol is

(1) odd

(2) unknown√

(3) a and b both

(4) even

(5) none of the above

  1. Data communications monitors available on the software

marked include

(1) TOTAL

(2) ENVIRON/1√

(3) BPL

(4) Tel net

(5) none of the above

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