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Online Computer Science Test - Computer Science Test - Random

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.
Compression of digital data for efficient storage is
Buffer
CPU
Packing
Field
None of the above
Your Answer: Option
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Correct Answer: Option
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Learn more problems on : Computer Fundamentals
2.
If a calculation is embedded in a form
the result of the calculations are stored with the form
the calculations are stored with the form
the result of the calculations are printed in report
All of the above
None of the above
Your Answer: Option
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Correct Answer: Option
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Learn more problems on : Database Systems
3.
Which command(s) is(are) used to redefine a column of the table in SQL ?
ALTER TABLE
DEFINE TABLE
MODIFY TABLE
All of the above
None of the above
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Correct Answer: Option
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Learn more problems on : Database Systems
4.
RS-232 is a standard that applies to?
Parallel port
Serial port
Game port
All of the above
None of the above
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Correct Answer: Option
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Learn more problems on : Computer Hardware
5.
A memory space used for the temporary storage of data is
PROM
SAM
Scratchpad storage
Buffer
None of the above
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Correct Answer: Option
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Learn more problems on : Computer Fundamentals
6.
The following is true about 2-out of-5 code:
it is weighted code
it is unweighted code
it has odd parity
All of the above
None of the above
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7.
Which of the following is responsible for coordinating various operations using timing signals?
Arithmetic-logic Unit
Control unit
Memory unit
Input/Output unit
None of the above
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8.
Which of the following statements is false?
Secondary storage is nonvolatile
Primary storage is volatile
Secondary storage contains data for immediate processing
When the computer is turned off, data and instructions stored in primary storage are erased
All of the above
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9.
The magnetic storage chips used to provide nonvolatile direct access storage of data and that have no moving parts are known as
Magnetic core memory
Magnetic tape memory
Magnetic disk memory
Magnetic bubble memory
None of the above
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10.
A compiler for a high-level language that runs on one machine and produces code for a different machine is called
optimizing compiler
one pass compiler
cross compiler
multipass compiler
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Learn more problems on : Language Processors
11.
Production machines were first controlled by the computer by means of
punched cards
punched paper tape
magnetic tape
magnetic cards
None of the above
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Learn more problems on : Management Information Systems
12.
EDP auditors can be acquired from
computer consulting firms
accounting firms
general management consulting firms
All of the above
None of the above
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13.
If the values Earliest time and Latest time of an event are not equal then such events are referred to as:
critical
optimum
non-critical
All of the above
None of the above
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14.
In a _____ one module of the new information system is activates at a time.
System Development Life Cycle
CASE tool
Phased Conversion
Success factors
None of the above.
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Learn more problems on : System Analysis and Design
15.
Which of the following is a graphical output device?
Dot-matrix Printer
Plotter
Laser Printer
Line Printer
None of the above
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Learn more problems on : Automation System
16.
Multiplication of 478 by 528 is
(3144)8
(4147)8
(3146)8
(3184)8
None of the above
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Digital Computer Electronics
17.
How may valence electrons does a silicon atom have?
0
1
2
4
None of the above
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Learn more problems on : Electronic Principles
18.
If you assign a default value to any variable in a function prototype's parameter list, then _____
all other parameters in the function prototype must have default values
all parameters to the right of that variable must have default values
all parameters to the left of that variable must have default values
no other parameters in that prototype can have default values
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Learn more problems on : Object Oriented Programming Using C++
19.
3 is a _____ constant
character literal
named literal
numeric literal
string literal
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Correct Answer: Option
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Learn more problems on : Object Oriented Programming Using C++
20.
Separating parts of a program into units that remain unaffected by other parts of a program is the concept known as _____
intrusion
volatility
encapsulation
protection
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Object Oriented Programming Using C++
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