Computer Awareness-11

              1.       The term ____________ designates equipment that might be added to a computer system to enhance its functionality.

a.       Digital device

b.      Dynamic Device

c.       Disk pack

d.      Peripheral device

              2.      Mobile Commerce is described as:

a.       Transporting products 

b.      Business through mobile phones

c.       Buying and selling goods or services through wireless handheld devices

d.      None of the above 

              3.      When a particular object or an image is copied, it is stored in____________ 

a.       Notice board

b.      Motherboard

c.       Cupboard

d.      Clipboard

             4.      CRT stands for: 

a.       Complex Ray Tube

b.      Controlled Ray Tube

c.       Cathode Ray Tube

d.      Copper Rod Tube

             5.      The rectangular area of the screen that displays a program, data or information is a                               _____________

a.       Label

b.      Dialog Box

c.       Window

d.      Prompt

              6.      The purpose of the primary key in a database is to______________

a.       unlock the database

b.      uniquely identify a record

c.       provide a map of the data 

d.      establish constraints on database operations

              7.      The design of the network is called the network________________

a.       Architecture

b.      Topology

c.       Platform

d.      Transmission

              8.      The main directory of a disk is called the____________directory.

a.       Major

b.      Root

c.       Base

d.      Sub

              9.      These are specially designed computer chips Reside inside cars or motor bikes

a.       Servers

b.      Mainframes

c.       Embedded Computers

d.      Robots

             10.  Total memory of system can be known using_________ command in MS-DOS

a.       DIR

b.      CD

c.       COPYCON

d.      MEM

11.  Data processing is___  :

a.       data collection   

b.      similar to computer programming

c.       associated with commercial work

d.      akin to data coding       

12.  In computer terminology, information means

a.      Raw data       

b.      Data in more useful

c.       Alphanumeric data       

d.      Program

13.  What is meant by the term RAM?           

a.      Memory which can only be read

b.      Memory which can be both read and written to

c.       Memory which is used for permanent storage

d.      Memory which can only be written to

14.  In UNIX, which command is used to sort the lines of data in a file in reverse order   

a.       sort    

b.      sh

c.       st    

d.      sort –r

15.  The commonly used UNIX commands like date, ls, cat etc. are stored in      

a.       /dev directory

b.      /bin directory

c.       /tmp directory

d.       /unix directory

             16.  In UNIX, which command is used to change the protection mode of files starting with the string emp and ending with 1, 2 or 3 ? 

a.      Chmod u+x emp[1-3] 

b.      Chmod 777 emp*

c.       Chmod u+r ??? emp 

d.      Chmod 222 emp ?

            17.  The variables which can be accessed by all modules in a C program, are known as    

a.       Local variables 

b.      Internal variables

c.       External variables 

d.      Global variables

            18.  Which computer memory is used for storing programs and data currently being processed by the CPU?      

a.       Mass memory           

b.      Internal memory   

c.       Non-volatile memory       

d.      PROM

            19.  A record that follows a group of related records and contains data relevant to those records is called as....       

a.      Trailer record

b.      Traffic record   

c.       Transaction record       

d.      Transducer

            20.  A type of semiconductor memory that usually has small capacity but very fast access is    

a.       PROM   

b.      RAM    

c.       Scratchpad   

d.      ROM