Computer Gk For All Competitive Exams Series #17 | Hindigk50k
Computer Gk For All Competitive Exams Series #17

Computer Gk For All Competitive Exams Series #17

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. A peimanent virtual circuit involves

(1) All of the above (2) Data transfer

(3) Connection release

(4) Connection establishment√

(5) None of these

  1. X.21 protocol consists of

(1) Only physical level√

(2) Frame and packet levels

(3) Physical, frame and pack-et levels

(4) Physical and frame levels

(5) None of these

Computer Gk For All Competitive Exams Series #18

Computer Gk For All Competitive Exams Series #16

  1. In OSI network architecture, the dialogue control and

token management are responsibility of

(1) transport layer

(2) network layer

(3) session layer√

(4) data link layer

(5) none of above

  1. In OSI network architecture, the routing is performed by

(1) data link layer

(2) network layer√

(3) .transport layer

(4) session layer

(5) none of above

  1. Which of the following performs modulation and

demodulation?

(1) modem√ (2) satellite

(3) coaxial cable

(4) fiber optics

(5) none of the above

  1. The process of converting analog signals into digital

signals so they can be processed by a receiving computer is

referred to as:

(1) modulation

(2) digitising√

(3) synchronizing

(4) demodulation

  1. How many OSI layers are covered in the X.25 standard?

(1) Two (2) Seven

(3) Three√ (4) Six

(5) None of above

  1. Layer one of the OSI model is

(1) transport layer

(2) link layer

(3) physical layer√

(4) network layer

(5) none of above .

  1. The x.25 standard specifies a

(1) technique for start-stop data

(2) technique for dial access

(3) data bit rate

(4) DTE/DCE interface√

(5) none of above

  1. Which of the following communication modes

support -two-way traffic but in only one direction at a time?

(1) half duplex√

(2) simplex

(3) three-quarters duplex

(4) all of the above

(5) none of the above

  1. Wh ch of the following might be used by a company to

satisfy following communications needs?

(1) front end processor

(2) all of the above√

(3) controller

(4) concentrator ,,

(5) multiplexer

  1. The interactive transmission of data within a time sharing

system may be best suited to

(1) simplex lines

(2) biflex-lines

(3) full duplex lines

(4) half-duplex lines√

  1. Which of the following statement is incorrect?

(1) Batch processing is the prefered processing mode for

telecommunication operation. √

(2) Half duplex line is a communication line in which data

can move in two directions, but not at the same time.

(3} Teleprocessing combines telecommunications and DP

techniques in online activities

(4) The difference between synchronous and asynchronous

trans mission is the clocking derived from the

data in synchronous transmission.

  1. Which of hte fallowing is considered a broad band

communication channel?

(1) coaxial cable

(2) fiber optics cable

(3) all of above√

(4) microwave circuits

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

(1) telephone lines

(2). modem√

(3) coaxial cables

(4) microwave systems

  1. Which of the following does not allow multiple uses or

devices to share one communication line?

(1) concentrator

(2) multiplexer

(3) double plexer√

(4) controller

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

signal?

(1) CIS (2) RTS

(3) VDR√ (4) DSR

  1. Which of the following statement is incorrect?

(1) Multiplexers are designed to accept data from several

I/O devices and transmit a unified stream of. data on one

communication tine

(2) RTS/CTS is the way the terminal indicates ringing√

(3) 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

(4) HDLC is a standard synchronous communication

protocol.

Computer Gk For All Competitive Exams Series #18

Computer Gk For All Competitive Exams Series #16

  1. Which of the following is an advantage to using fiber

optics data transmission?

(1) resistance to data theft

(2) fast data transmission rate

(3) all of above√

(4) low noise level

  1. Which of the following is required to communicate

between two computers?

(1) all of above including access to transmission medium√

(2) protocol

(3) communication hardware

(4) communications software

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