Top 50 Computer question answer and MCQS
Top 50 Computer Question Answers and MCQS
Q.1 Who is the father
a) E.F Codd
b) F. Boyce
c) Bob miner
d) none
|
Answer-- a |
Q.2 SQL stands
for…………….
a)
structured query language
b) sorted query
language
c)
standard question language
d) none
|
Answer-- a |
Q.3 SQL is a ………
language that provides an interface between the user and the database.
a) procedural
b) non-procedural
c) high-level
language
d) none
|
Answer-- b |
Q.4 ……………
commands are used to manipulate the database objects.
a) DDL
b) DML
c) DCL
d) TCL
|
Answer-- b |
Q.5 INSERT
command is used to insert a new row/data in a table. Insert command is ……
a) DDL
b) DML
c) DCL
d) none
|
Answer-- b |
Q.6 A data
structure is a specialised way for ……………… a
data
in memory, so that one can perform operation on it.
a) organising
b) storing
c) both a and b
d) none
|
Answer-- c |
Q.7 A/an …………. Is
a collection of similar data type elements that holds
data
in contiguous memory location?
a) array
b) integer
c) float
d) char
|
Answer-- a |
Q.8 Stack works
in …………manner.
a) LIFO
b) FIFO
c) both
d) none
|
Answer-- a |
Q.9 ……… Is a
special data structure in which data elements are linked to one another.
a) array
b) stack
c)
linked list
d) all
|
Answer-- c |
Q.10 A linear
data structure in which elements are inserted at one end
and
elements are removed from the other end is called……………
a)
array
b) stack
c) linked list
d) queue
|
Answer-- d |
Q.11 A collection
of communication devices that are able to communicate
with
each other through some medium is…………….
a)
computer network
b) network
c) both
d) none
|
|
Q.12 Data is
transferred from one place to another place in the form of…………
a) data
b)
signals
c)
letters
d) none
|
Answer-- b |
Q.13 In…………… mode
of data transfer, data can flow in both directions, but
not
at the same time.
a)
simplex
b) half duplex
c) full duplex
d) none
|
Answer-- b |
Q.14 What is the
full form of ISP?
a)
Internet Service Provider
b) internet share
provider
c)
in service provide
d) all
|
Answer-- a |
Q.15 ……………….
defines the structure of the network of how all the
components
are interconnected to each other.
a) network
b) topology
c) LAN
d) none
|
Answer-- b |
Q.16 The…….
topology is designed in such a way that all the stations are connected through
a single cable known as a backbone cable.
a) bus
b) star
c) mesh
d) none
|
Answer-- a |
Q.17 What is
Attenuation?
a)
loss of LAN
b) connectivity
c) It is a
loss of signal
d) none
|
Answer-- c |
Q.18 ……. topology
is an arrangement of the network in which computers are interconnected with
each other through redundant connections.
a) star
b) mesh
c) bus
d) all
|
Answer-- b |
Q.19 ……. network
is useful for small environments, usually up to 10 computers.
a) Peer-To-Peer network
b) Client/Server network
c) both
d) none
|
Answer-- a |
Q.20 …….
rate is the transmission of the number of bits per second.
a)
bit
b) bandwidth
c) baud
d) none
|
Answer-- a |
Q.21 ………is a
physical path between the transmitter and the receiver i.e. the
channel through which data is sent from one place to another.
a)
transmission medium
b) LAN
c) switch
d) none
|
Answer-- a |
Q.22 A ……. consists
of two insulated copper wires arranged in a
regular
spiral pattern.
a)
Fibre Optic
b) Twisted pair
c) Coaxial Cable
d) none
|
Answer-- b |
Q.23 …………is
omnidirectional and useful for multicasting when there is one sender and many
receivers.
a) radio waves
b) Microwaves
c) Infrared
d) none
|
Answer-- a |
Q.24 OSI stands
for……………
a)
open stand interconnection
b) Open System
Interconnection
c)
opening system interface
d) none
|
Answer-- a |
Q.25 Data can be
represented either in analog or digital form. The computers used the ……. form to store the
information.
a) analog
b)
digital
c) numbers
d) none
|
Answer-- b |
Q.26 The
transmission media is available in the lowest layer of the OSI reference model. The lowest layer is…………….
a) data link
b) physical
c) network
d) none
|
Answer-- b |
Q.27 …….is a
technique used to combine and send multiple data streams over a single
medium.
a) multiply
b) multiplexing
c) multiple
d) none
|
Answer-- b |
Q.23 When a user
accesses the internet messages are sent through the network of
transmission media. This technique of transferring information from one
computer network to another network is known as ……….
a) transferring
b) switching
c) sending
d) none
|
Answer-- b |
Q.24 In the OSI
model……. layer is the 2nd layer from the bottom.
a) physical
b) data link
c) transport
d) none
|
Answer-- b |
Q.30 The …….
Layer protocols are Ethernet, token ring, FDDI, and PPP.
a) physical
b) data link
c) transport
d) none
|
Answer-- b |
Q.31 PPP stands
for………….
a)
public-private partnership
b) point-to-point
c) point per
point
d) none
|
Answer-- b |
Q.32 …….
addressing is also used to distinguish between source and destination systems.
a) logical
b)
physical
c) local
d) none
|
Answer-- a |
Q.33 What is an operating system?
a) collection of programs that manages hardware resources
b) system service provider to the application programs
c) link to interface the hardware and application programs
d) all of the above
|
Answer-- d |
Q.34 Which one of
the following errors will be handled by the operating system?
a) power failure
b) lack of paper
in the printer
c) connection failure in the network
d) all of the
above
|
Answer-- d |
Q.35 By operating
system, the resource management can be done via __________
a) time division multiplexing
b) space division
multiplexing
c) time and space division multiplexing
d) none of the
mentioned
|
Answer-- c |
Q.36 If a process
fails, most operating systems write the error information to a ______
a) log file
b) another
running process
c) new file
d) none of the
mentioned
|
Answer-- a |
Q.37 Which one of
the following is not a real-time operating system?
a) VxWorks
b) Windows CE
c) RTLinux
d) Palm OS
|
Answer-- d |
Q.38 In a multiprogramming environment __________
a) the processor executes more than one process at a time
b) the programs are developed by more than one person
c) more than one process resides in the memory
d) a single user can execute many programs at the same time
|
Answer-- c |
Q.39 When the process issues an I/O request __________
a) It is placed in an I/O queue
b) It is placed in a waiting
queue
c) It is placed in the ready queue
d) It is placed in the Job queue
|
Answer-- a |
Q.40 Which one of
the following is a synchronization tool?
a) thread
b) pipe
c) semaphore
d) socket
|
Answer-- c |
Q.41 The ability
to combine names and addresses with a standard document is called……….
a) document
formatting
b) database
management
c) mail merge
d) form letters
|
Answer-- c |
Q.42 Which
enables us to send the same letter to a different person?
a) macros
b) template
c) mail merge
d) none
|
Answer-- c |
Q.43 A word
processor is used for…….
a) keep an
account of money spent
b) do a computer
search in the media center
c) virus
protection
d) type a
biography
|
Answer-- d |
Q.44 which can be
used for quick access to commonly used commands and tools.
a) status bar
b) toolbar
c) Menu bar
d) title bar
|
Answer-- b |
Q.45 Autocorrect
was originally designed to replace ………… words as you type.
a) short
b) grammatically
incorrect
c) misspelled
d) none of the
above
|
Answer-- c |
Q.46 ctrl + right
arrow is used to
a) Moves the
cursor one-word right
b) Moves the
cursor end of the line
c) Moves the
cursor end of the document
d) Moves the
cursor one Paragraph down
|
Answer-- a |
Q.47 ctrl + page
down is used to
a) Moves the
cursor one Paragraph Down
b) Moves the
cursor one Page Down
c) Moves the
cursor one Line Down
d) Moves the
cursor one Screen Down
|
Answer-- b |
Q.48 ctrl + down
arrow is used to
a) Moves the cursor one paragraph
down
b) Moves the
cursor one line down
c) Moves the cursor one page down
d) Moves the
cursor one screen down
|
Answer-- a |
Q.49 page up key
uses for………
a) Moves the
cursor one-line up
b) Moves the cursor one screen up
c) Moves the
cursor one-page up
d) Moves the cursor one paragraph up
|
Answer-- b |
50) ctrl + home
is used to
a) Moves the
cursor to the beginning of the Document
b) Moves the
cursor to the beginning of the Line
c) Moves the
cursor to the beginning of the Paragraph
d) All of the
above
|
Answer-- a |
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