WorksheetsDomestic data entry operator 250 to 300 50 mcqs
Total questions: 50
Worksheet time: 25mins
1.For each instructions of program in memory the CPU goes through a
Decode - fetch - execute sequence
Execute - store - decode sequence
Fetch - decode - execute sequence
Fetch - execute - decode sequence
2.Which of the following is the ascending order of data hierarchy
Bit - byte - record - field - data base - file
Bit - byte - field - record - file - database
Bit - byte - file - field - record - database
Bit - record - byte - field - file - database
3.A microcomputer consists of at least an input unit, an output unit, microprocessor unit and a
Stabilizer
Memory unit
Printer
Network
4.Magnetic tape can serve as
Input media
Output media
Secondary storage media
All of the above
5.Super computers are mainly useful for
Mathematical intensive scientific applications
Data-retrieval operations
Input-output intensive processing
All of the above
6.Which of the following storage is volatile?
Semiconductor memory
Floppy disk
CD-ROM
Core memory
7.RAM chips
Allow the computer to store data electronically
Store data indefinitely unless you delete it
Are secondary memory
All of the above
8.EEPROM is
Easily erasable
Non-erasable
Effectively erasable
Electrically erasable
9.Multiprocessing
Makes the operating system simpler
Allows multiple processes to run simultaneously
Is completely understood by all major computer vendors
Allows the same computer to have multiple processors
10.How many units in a single bus structure will communicate at a time
1
2
3
14
11.Arithmetic logic unit
Perform arithmetic operations
Store data
Perform comparison
Communicate with input devices of the
12.The access method used for magnetic tape is
Direct
Random
Sequential
None of these
13.By processing we understand
Processing string of only words
String manipulation only
Processing string of numbers and special symbols
None of these
14.The difference between memory and storage is that the memory is………..and storage is…….…
Temporary, permanent
Permanent, temporary
Slow, fast
None of these
15.Which of the Following holds the ROM, CPU, RAM and expansion cards
Hard disk
Floppy disk
Mother board
None of these
16.The language that the computer can understand and execute is called …………..
Machine language
Application software
System program
None of these
17.Which of the following devices can be used to directly input printed text
OCR
OMR
MICR
None of the above
18.A floppy disk contains
Circular tracks only
Sectors only
Both circular tracks and sectors
None of these
19.CD-ROM is a
Semiconductor memory
Memory registers
Magnetic memory
None of these
20.Actual execution of instructions in a computer takes place in
ALU
Control Unit
Storage unit
None of of these
21.Which of the following is used as a primary storage device
Magnetic tape
PROM
Floppy disk
None of these
22.Information retrieval is faster from
Floppy disk
Magnetic tape
Hard disk
None of these
23.Operating system is
A collection of hardware components
A collection of input-output devices
A collection of software routines
None of these
24.Operating system
Link a program with the subroutines it references
Provides a layered, user-friendly interface
Enables a programmer to draw a flowchart
None of these
25.Execution of two or more programs by a single CPU is known as
Multiprocessing
Time sharing
Multi programming
None of these
26.Typical data transfer rate in LAN are of the order of
Bits per sec
Kilobits per sec
Megabits per sec
None of the above
27.Ethernet uses
Bus topology
Ring topology
Mesh topology
None of the above
28.Wide area networks (WANs) always require
High bandwidth communication source link
High speed processors
Same type
None of the above
29.Typical bandwidth of optical fibers is
Order of GHz
Order of KHz
Order of Hz
None of the above
30.A large number of computers in a wide geographical area can be efficiently connected by
Twisted pair lines
Coaxial cables
Communications satellites
None of the above
31.Which of the following topologies is not of broadcast type?
Star
Bus
Ring
None of the above
32.Bug means
A logical error in a program
Documenting programs using an efficient Documentation too
A difficult syntax error in a program
None of the above
33.The part of machine level instruction, which tells the central processor what was to be done
Operation code
Address
Operand
None of the above
34.Indicate which, of the following is not true about 4GL.
4GL does not support a high level of screen interaction
Many database management system packages support 4GLs
A 4GL is a software tool which is written, possibly, in some third generation language
None of the above
35.Indicate which of the following, best describes the term “software”
Systems programs only
Application programs only
Both (a) and (b)
None of the above
36.A translator is best described as
An application software
A system software
A hardware component
None of the above
37.Indicate which of the following is not true about an interpreter
Interpreter generates an object program from the source program
Interpreter is a kind of translator
Interpreter analyses each source statement every time it is to be executed
None of the above
38.The errors that can be pointed out by the compiler are
Syntax errors
Semantic errors
Logical errors
None of the above
39.C is
An assembly language
A third generation high level language
A machine language
None of the above
40.A graph prepared by a computer
Is its output
Is the piece of information to use
Is a hard copy
All of the above
41.Which of the following does not represent on I/O device
Speaker which beeps
Joystick
Plotter
ALU
42.The communication line between the CPU, memory and peripherals is called a
Bus
Line
Media
None of these
43.Memories which can be read only are called...........memories
RAM
ROM(read only memory)
PROM
EPROM
44.Example of non-numerical data is
Employee address
Examination score
Bank balance
None of the above
45.One thousand bytes represent a
Megabyte
Gigabyte
Kilobyte
None of the above
46.A step by step procedure used to solve a problem is called
Operating system
Algorithm
Application Program
None of the above
47.A computer cannot “boot” if it does not have the
Compiler
Loader
Operating system
Assembler
48.WAN hardware includes
Multiplexors and routers
EDF
Bridger and modems
None of the above
49.Third generation computers
Were the first to use built-in error detecting device
Used transistors instead of vacuum tubes
Were the first to use neural network
None of the above
50.A Winchester disk is a
Disk stack
Removable disk
Flexible disk
None of the above
