Computer Network (Basic Computer Awareness Knowledge/Govt Exams) MCQ's




Question 61 :
To make a notebook act as a desktop model, the notebook can, be connected to a__ which is connected to a monitor and other devices.

  1. bay
  2. network
  3. port
  4. docking station
  

Question 62 :
The operating system creates.

  1. Virtual computers
  2. All the above
  3. Virtual device
  4. Virtual space
  

Question 63 :
Which of the following refers to a small, single site network?

  1. CPJ
  2. DSL
  3. RAM
  4. LAN
  

Question 64 :
Layer one of the OSI model is

  1. transport layer
  2. link layer
  3. physical layer
  4. network layer
  

Question 65 :
An exajnple of an analog communication method is

  1. laser beam
  2. microwave
  3. voice grade telephone line
  4. all of the above
  

Question 66 :
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.
  

Question 67 :
What is the function of an operating system?

  1. Manages computer's resources very efficiently
  2. Takes care of scheduling jobs for execution
  3. Manages the flow of date and instructions
  4. All of the above
  

Question 68 :
Two or more computers connected to each other for shar-ing information form a ??

  1. pipeline
  2. router
  3. server
  4. network
  

Question 69 :
DSL is an example of a(n) _____ connection.

  1. network
  2. wireless
  3. slow
  4. broadband
  

Question 70 :
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
  

Question 71 :
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
  

Question 72 :
A band is always equivalent to

  1. a byte
  2. a bit
  3. 100 bits
  4. none of the above .
  

Question 73 :
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
  

Question 74 :
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. The difference between synchronous and asynchronous trans mission is the clocking derived from the data in synchronous transmission.
  

Question 75 :
Smaller and less expensive PC-based servers are replacing ____ in many busi-nesses.

  1. supercomputers
  2. mainframes
  3. laptops
  4. clients
  

Question 76 :
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
  

Question 77 :
Which is the first program run on a computer when the computer boots up?

  1. Operating system
  2. System software
  3. System operations
  4. All the above .
  

Question 78 :
Which of the following transmission systems provide the highest data rate to in individual device?

  1. telephone lines
  2. computer bus
  3. voice and mode
  4. lease lines
  

Question 79 :
How many OSI layers are covered in the X.25 standard?

  1. Two
  2. Seven
  3. Three
  4. Six
  

Question 80 :
Most data communications involving telegraph lines use:

  1. simplex lines
  2. wideband channel
  3. dialed service
  4. narrowband channel
  

Question 81 :
In a synchronous modem, the digital-to-analog converter transmits signal to the

  1. demodulator
  2. modulator
  3. equilizer
  4. terminal
  

Question 82 :
The __ is a device that connects n inputstom outputs,

  1. Crosspoint
  2. Crossbar
  3. None of these
  4. Modem
  

Question 83 :
Which of the following Operating systems is better for Implementing a Client-Server network

  1. MS DOS
  2. Windows 2000
  3. Windows 98
  4. Windows 95
  

Question 84 :
Which is built directly on the hardware?

  1. Computer Environment
  2. Application Software
  3. Data base System
  4. Opera ti ng System
  

Question 85 :
A dumb terminal has

  1. An embedded micro-proces-
  2. Extensive memory
  3. A keyboard and screen
  4. Independeh I processing
  

Question 86 :
The ability to easily add addi-tional users means that a net work is

  1. secure
  2. dedicated
  3. decentralized
  4. scalable
  

Question 87 :
The most important or power-ful computer in a typical network is

  1. desktop
  2. network cliejit
  3. network station
  4. network server
  

Question 88 :
A protocol is a set of rules governing a time sequence of events that must take place

  1. between modems
  2. between an interface
  3. between peers
  4. across an interface
  

Question 89 :
Which of the following does not allow multiple uses or devices to share one communication line?

  1. concentrator
  2. multiplexer
  3. doubleplexer
  4. controller
  

Question 90 :
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
  
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