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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.
The first step in troubleshooting many problems is to verify which of the following?
The subnet mask is valid
TCP/IP is installed correctly on the client
The WINS server is running
The BDC is operable
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Networking
2.
The transport layer protocol is connectionless.
NVT
FTP
TCP
UDP
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Networking
3.
RS-232-G
is an interface between two data circuit terminating equipment as examplified by a local and remote modem
is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Networking
4.
What does MSCDEX.EXE do?
Configures hard drives
it's a SCSI driver
BIOS setup
it's a CD-ROM DOS driver
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Disk Operating System (DOS)
5.
Voltage is measured:
in parallel
in series
after breaking the circuit
after checking resistance
after checking current
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Computer Hardware
6.
Which is a secondary memory device?
CPU
ALU
Floppy disk
Mouse
None of the above
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Correct Answer: Option
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Learn more problems on : Computer Fundamentals
7.
The least expensive OCR units can read
hand printed numbers
machine printed numbers
marks
handwriting
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : Computer Fundamentals
8.
Methods used to organise and physically store disk data are cylinder and
Sector
Surface
Track
Hib
None of the above
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Computer Fundamentals
9.
A half byte is know is
Data
Bit
Half byte
Nibble
None of the above
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Correct Answer: Option
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Learn more problems on : Computer Fundamentals
10.
A Decision table
represents the information flow
documents rules, that select one or more actions, based on one or more conditions, from a set of possible conditions.
gets an accurate picture of the system
shows the decision paths
Your Answer: Option
(Not Answered)
Correct Answer: Option
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Learn more problems on : System Analysis and Design
11.
A feasibility document should contain all of the following except:
project name
problem descriptions
feasible alternative
data-flow diagrams
None of the above
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Correct Answer: Option
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Learn more problems on : System Analysis and Design
12.
Which of the following is not a programming control structure?
Repetition
Selection
Sequence
Sorting
None of the above
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Learn more problems on : System Analysis and Design
13.
Difference between Decision - Tables and Decision Trees is (are):
value to end user
form of representation
one shows the logic while other shows the process
All of the above
None of the above
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Learn more problems on : System Analysis and Design
14.
The program counter:
decides which program to run
counts the number of instructions that have been executed
contains the address of the next instruction to be executed
is where arithmetic is done in a computer.
None of the above
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Automation System
15.
Which one of the following is a direct statement of Ohm's law?
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of voltages in a loop is equal to zero
The algebraic sum of currents entering and leaving a point is equal to zero
None of the above
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Electronic Principles
16.
The emitter diode is usually
Forward-biased
Reverse-biased
Nonconducting
Operating in the breakdwon region
None of the above
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Learn more problems on : Electronic Principles
17.
Which of the following is an access specifier?
particular
shielded
protected
safe
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Object Oriented Programming Using C++
18.
A variable declared in a function is called a(n) _____ variable
area
global
local
reference
value
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Learn more problems on : Object Oriented Programming Using C++
19.
Which of the following statements creates a named constant called driverAge whose value is 16?
const driverAge = 16;
const short driverAge = 16;
driverAge =16;
driverAge const =16;
namedconst driverAge =16;
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(Not Answered)
Correct Answer: Option
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Learn more problems on : Object Oriented Programming Using C++
20.
A function that changes an object's state belongs to the category of
inspector functions
mutator functions
auxiliary functions
manager functions
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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