MCQ 11th,11TH
MAHARASHTRA BOARD
COMPUTER SCIENCE PAPER 1
MCQ WITH ANSWER
CD and DVD drives are the examples of
(A) Printers
(B) Storage devices
(C) Solid stage storage
(D) Zip drives
Ans: B
Storage devices
ROM is an example of which of the following?
(A) Virtual memory
(B) Nonvolatile memory
(C) Cache memory
(D) Volatile memory
Ans: B
Nonvolatile memory
Data on a floppy disk is recorded in rings called
(A) Segments
(B) Tracks
(C) Ringers
(D) Sectors
Ans: B
Tracks
The smallest unit in a digit system is
(A) Byte
(B) Kilobyte
(C) Bit
(D) Character
Ans: C
Bit
A temporary storage area, attached to the CPU, for I/O operations is a
(A) Core
(B) Register
(C) Buffer
(D) Chip
Ans: C
Buffer
A permanent memory is called
(A) ALU
(B) CPU
(C) ROM
(D) RAM
Ans: C
ROM
Storage device found inside the computer
(A) CD-ROM
(B) Hard Disk
(C) Super Disk
(D) Zip Disk
Ans: B
Hard Disk
USB stands for
(A) Universe Service Bus
(B) Uniforms Sector Buffer
(C) Universal Serial Bus
(D) Uniform Service Bus
Ans: C
Universal Serial Bus
Hard disk drives, CD drives and DVD drives are examples of
(A) Storage
(B) Storing
(C) Back up
(D) All of these
Ans: D
All of these
_____ data type is further divided into float and double.
(A) double
(B) float
(C) char
(D) int
Ans: B
float
In _____ method, the called function arguments formal parameters become alias to the actual parameters in the calling function.
(A) return
(B) call
(C) call by value
(D) call by reference
Ans: D
call by reference
The base data type should be prefixed with the _____ at the time of declaring a variable.
(A) dimension
(B) variable
(C) constant
(D) modifiers
Ans: D
modifiers
What is the range for char data type in C++?
(A) -126 to 127
(B) -127 to 128
(C) 128 to -127
(D) -128 to 127
Ans: D
-128 to 127
What is the prefix character used to represent escape sequence?
(A) - =
(B) +
(C) *
(D) /
Ans: D
/
How should be the text in multimedia ?
a) Short
b) To the point
c) Attractive
d) All of these
Ans: All of these
_______software of Open Office is used to create presentations.
a) Writer
b) Impress
c) Draw
d) Method
Ans: Impress
_______ is used to display fonts in attractive manner in Open Office impress.
a) Word art
b) Text art
c) Font work
d) Object work
Ans: Object work
______is used to display drawing toolbar in impress.
a) View —> Drawing
b) View —> Toolbar -» Drawing
c) View —> Toolbar Draw
d) View —> Toolbar —> Drawing Toolbar
Ans: View —> Toolbar -» Drawing
Which of the following is not a type of number system?
a) Positional
b) Non-Positional
c) Octal
d) Fractional
Ans: d
Explanation: There are two main types of number systems : Positional & Non-positional.
Positional System uses digits for the representation whereas, non-positional number systems use certain symbols for the representation of numbers. Octal is a type of positional number systems with base 8.
How is the number 5 represented in non-positional number system?
a) IIIII
b) 5
c) V
d) v
Ans: a
Explanation: In a non-positional number system, 1 is represented as I, 2 as II, 3 as III, 4 as IIII and therefore, 5 is represented as IIIII. This number system uses symbols for the representation of digits.
The base is the total number of digits in a number system.
a) True
b) False
Ans: a
Explanation: The statement is true. In a positional number system, base is the number of digits the system comprises. For example, a binary number system comprises of only 2 digits, 0 and 1, therefore its base is 2. Similarly, the decimal system comprises 10 digits 0 to 9, therefore its base is 10.
The LSB and MSB of 1243247 are ____ and ____
a) 1, 7
b) 4, 7
c) 7, 1
d) 4, 1
Ans: c
Explanation: The LSB or the least significant bit is the rightmost digit at the zeros position. The MSB or the most significant bit is the leftmost digit.
A device that uses positional notation to represent a decimal number.
a) Abacus
b) Calculator
c) Pascaline
d) Computer
Ans: a
Explanation: Abacus was used to doing arithmetic calculations around 2500 years ago. Pascaline was the pascal’s calculator by Blaise Pascal invented for doing laborious calculations.
The 2’s complement of 5 is ______________
a) 1011
b) 0101
c) 1010
d) 0011
Ans: a
Explanation: The 2’s complement is obtained by adding 1 to the 1s complement of a number. The 1’s complement of 5(0101) is 1010. For 2’s complement : 1010+1=1011.
What does BCD stand for?
a) Bitwise coded decimal
b) Binary coded decimal
c) Binary converted decimal
d) Bitwise Converted Decimal
Ans: b
Explanation: BCD is the binary coded decimal form of representation of numbers in 4 bits.E.g. The BCD representation of 5 is 0101. BCD representation of 22 is 00100010.
1 zettabyte = ______________
a) 1024 TB
b) 1024 EB
c) 1024 ZB
d) 1024 PB
Ans: b
Explanation: 1 ZB=1024 EB(exabyte)
1 EB=1024PB(petabyte)
1 YB(yottabyte)=1024ZB.
Perfrom BCD addition: 2+3= _______________
a) 0010
b) 0011
c) 0101
d) 1010
Ans: c
Explanation: BCD of 2 =0010
BCD of 3=0011
0010+0011=0101
Therefore, 2+3=0101(5).
ASCII stands for _____________________
a) American standard code for information interchange
b) American scientific code for information interchange
c) American scientific code for international interchange
d) American standard code of international interchange
Ans: a
Explanation: ASCII is an encoding standard which is used for communications worldwide. ASCII codes are allotted to digits, special characters and alphabets for data communication purpose.
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