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Free download in PDF Computer Awareness Multiple Choice Questions(MCQs) & Answers. These multiple choice questions on Computer Science are very useful for NIELIT, BCA, B.Sc. MCA, M.Sc. B.Tech, M.Tech, BE, ME students an interview for various positions like Web Developer, System Analyst etc.
(1)
Tally is __________
[A]
Open S/W
[B]
Closed S/W
[C]
Application s/w
[D]
System s/w
(2)
Terminal symbol in a flowchart indicates
[A]
End
[B]
Input and Output
[C]
processing
[D]
Decision
(3)
The algorithm cannot be represented as
[A]
A flowchart
[B]
A program
[C]
A process
[D]
A pseudo code
(4)
A logic gate is an electronic circuit which
[A]
Makes logic decisions
[B]
Allows electron flow only in one direction
[C]
Works on binary algebra
[D]
Alternates between 0&1 values
Answer: Makes logic decisions
(5)
8421 codes is also called as
[A]
Gray code
[B]
ASCII code
[C]
Excess 3-code
[D]
BCD code
(6)
Which of the following would cause quickest acess
[A]
Direct access from a magnetic tape
[B]
Direct access from a hard disk
[C]
Direct access from a floppy disk
[D]
Direct access from a cassette tape
Answer: Direct access from a hard disk
(7)
The errors that can be pointed out by the compiler are
[A]
Syntax errors
[B]
Semantic errors
[C]
Logical errors
[D]
None of the above
(8)
A step by step procedure used to solve a problem is called
[A]
Operating system
[B]
Algorithm
[C]
Application Program
[D]
None of the above
(9)
A large number of computers in a wide geographical area can be efficiently connected by
[A]
Twisted pair lines
[B]
Coaxial cables
[C]
Communications satellites
[D]
None of the above
Answer: Communications satellites
(10)
Which of the following identifies a specific web page and its computer on the Web?
[A]
Web site
[B]
Web site address
[C]
URL
[D]
Domain Name
(11)
In Microsoft word short cut key CTRL +W is used for:
[A]
Open the Print Dialog box
[B]
Update the current web page
[C]
Open the new window
[D]
Close the current window
Answer: Close the current window
(12)
Which of the following storage media provides sequential access only?
[A]
Floppy disk
[B]
Magnetic disk
[C]
Optical disk
[D]
Magnetic tape
(13)
The most common keyboard uses the ____________ layout.
[A]
Dvorak
[B]
numeric
[C]
QWERTY
[D]
Alpha
(14)
Which is the slowest internet connection service?
[A]
Digital Subscriber Line
[B]
T1
[C]
Cable modem
[D]
Dial-up Service
(15)
A CD-RW disk ..............
[A]
Has a faster access than an internal disk
[B]
Is a form of optical disk, so it can only be written once
[C]
Holds less data than a floppy disk
[D]
Can be erased and rewritten
Answer: Can be erased and rewritten
(16)
Which of the following technique provides dedicated communication channel between two stations.
[A]
Switch network
[B]
Circuit switching
[C]
Packet switching
[D]
All of the above
Answer: Circuit switching
(17)
End-to-end conncectivity is provided from host-to-host in
[A]
Network layer
[B]
Session layer
[C]
Data link layer
[D]
Transport layer
(18)
The simultaneous transmission of data to a number of stations is known as
[A]
Broad cast
[B]
Bandwidth
[C]
Aloha
[D]
Analog transmission
(19)
Modulation is the process of
[A]
Sending a file from one computer to another computer
[B]
Converting digital signals to analog signals
[C]
Converting analog signals to digital signals
[D]
Echoing every character that is received
Answer: Converting digital signals to analog signals
(20)
Which media have the ability to have data stored on them by users more than once?
[A]
CD-R
[B]
CD-RW disks
[C]
Zip disks
[D]
OptiDisks