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




Question 31 :
The channel in the data-communication model can be

  1. postal mail services
  2. telephone lines
  3. none of the above
  4. all the above
  

Question 32 :
In communication satellite,multiple repeaters are known as

  1. detector
  2. modulator
  3. transponders
  4. stations
  

Question 33 :
Which Operating System doesn't support long file names?

  1. MS-DOS
  2. OS/2
  3. Windows 95
  4. Windows NT
  

Question 34 :
Network components are connected to the same cable in the? topology,

  1. mesh
  2. ring
  3. bus
  4. star
  

Question 35 :
A term used to describe interconnected computer configuration is

  1. Micro program sequence
  2. Modulation
  3. Multiprocessing
  4. Multiprogramming
  

Question 36 :
For separating channels in FDM, it is necessary to use

  1. Differentiation
  2. Bandpass filters
  3. Time slots
  4. All of the above
  

Question 37 :
A set of rules that computer on a network use to communicate with each other are called

  1. Protocol
  2. Regulations
  3. Rules
  4. Netiquettes
  

Question 38 :
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
  

Question 39 :
The sharing of a medium and its path by 2 or more devices is called _.

  1. Multiplexing
  2. Encoxing
  3. Line discipline
  4. Modulation
  

Question 40 :
A device that connects to a network without the use pf cables is said to be?

  1. distributed
  2. open source
  3. centralized
  4. wireless
  

Question 41 :
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. full-duplex
  

Question 42 :
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
  

Question 43 :
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
  

Question 44 :
A proxy server is used for which of the following ?

  1. To provide security against unauthorized users
  2. To provide TCP/IP
  3. To process client requests for datab'ase access
  4. To process client requests for Web pages
  

Question 45 :
Which Is the layer of a computer system between the hardware and the user program

  1. Operating environment
  2. System environment
  3. Operating system
  4. All the above
  

Question 46 :
What is the main difference between DDCMP and SDLC? .

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

Question 47 :
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
  

Question 48 :
The primary purpose of an operating system Is:

  1. To make computers easier to use
  2. To allow peopleto use the computer,
  3. To keep systems programmers employed
  4. To make the most efficient use of the computer hardware
  

Question 49 :
Which file keeps commands to execute automatically when OS Is started?

  1. autoexec.bat
  2. any batch file
  3. command.com
  4. config.sys
  

Question 50 :
Which Operating System doesn't support networking between computers?

  1. Windows 95
  2. Windows 3.1
  3. Windows 2000
  4. Windows NT
  

Question 51 :
Terminals are required for

  1. real-time, batch processing - time-sharing
  2. real time, timesharing - distributed message processing
  3. real-time, time sharing - message switching
  4. real time, distributed processing - manager inquiry
  

Question 52 :
Encryption and decryption are functions of

  1. Transport layer
  2. None of these
  3. Presentation layer
  4. Session layer
  

Question 53 :
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
  

Question 54 :
What is the full form of USB as used in computer related activities ?

  1. Universal Serial Bus
  2. Ultra Serial Block
  3. United Service Block
  4. Universal Security Block
  

Question 55 :
A peimanent virtual circuit involves

  1. All of the above
  2. Data transfer
  3. Connection release
  4. Connection establishment
  

Question 56 :
A(n) __ is a private corporate network, used exclusively by company employees.

  1. intranet
  2. local area network
  3. peer-to-peer
  4. Internet
  

Question 57 :
Data communications monitors available on the software marked include

  1. TOTAL
  2. ENVIRON/1
  3. BPL
  4. Tel net
  

Question 58 :
Which of the following signal is not standard RS 232-C signal?

  1. CIS
  2. RTS
  3. VDR
  4. DSR
  

Question 59 :
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
  

Question 60 :
An example of a medium speed, switched communications service is

  1. series 1000
  2. data phone 50
  3. All of the above
  4. ODD
  
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