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DATA REPRESENTATION MCQ Questions and Answers
DATA REPRESENTATION MCQ Questions and Answers
by
Team Raman Academy
Results
#1.
There are how many types of number system?
One
One
Two
Two
Three
Three
Four
Four
#2.
Modern computers represent characters and numbers internally using one of the following number systems.
Penta
Penta
Octal
Octal
Hexa
Hexa
Septa
Septa
Binary
Binary
#3.
In the binary language, each letter of the alphabet, each number and each special character is made up of a unique combination of
8 bytes
8 bytes
8 KB
8 KB
8 characters
8 characters
8 bits
8 bits
#4.
To perform calculation on stored data computer, uses ......... number system.
decimal
decimal
hexadecimal
hexadecimal
octal
octal
binary
binary
#5.
Which of the following is not a binary number?
001
001
101
101
202
202
110
110
011
011
#6.
The number system based on ‘0’ and ‘1’ only, is known as
binary system
binary system
barter system
barter system
number system
number system
hexadecimal system
hexadecimal system
#7.
Binary system is also called
base one system
base one system
base two system
base two system
base system
base system
binary system
binary system
#8.
Which of the following is an example of binary number?
6AH1
6AH1
100101
100101
005
005
ABCD
ABCD
23456
23456
#9.
Numbers that are written with base 10 are classified as
decimal number
decimal number
whole number
whole number
hexadecimal number
hexadecimal number
exponential integers
exponential integers
Mantissa
Mantissa
#10.
Decimal number system is the group of ............ numbers.
0 or 1
0 or 1
0 to 9
0 to 9
0 to 7
0 to 7
0 to 9 and A to F
0 to 9 and A to F
#11.
The octal system
needs less digits to represent a number than in the binary system
needs less digits to represent a number than in the binary system
needs more digits to represent a number than in the binary system
needs more digits to represent a number than in the binary system
needs the same number of digits to represent a number as in the binary system
needs the same number of digits to represent a number as in the binary system
needs the same number of digits to represent a number as in the decimal system
needs the same number of digits to represent a number as in the decimal system
None of the above
None of the above
#12.
A hexadecimal number is represented by
three digits
three digits
four binary digits
four binary digits
four digits
four digits
All of these
All of these
#13.
Hexadecimal number system has .......... base.
2
2
8
8
10
10
16
16
#14.
Hexadecimal number system consists of
0 to 9
0 to 9
A to F
A to F
Both ‘1’ and ‘2’
Both ‘1’ and ‘2’
Either ‘1’ or ‘2’
Either ‘1’ or ‘2’
#15.
A hexadigit can be represented by
three binary (consecutive) bits
three binary (consecutive) bits
four binary (consecutive) bits
four binary (consecutive) bits
eight binary (consecutive) bits
eight binary (consecutive) bits
sixteen binary (consecutive) bits
sixteen binary (consecutive) bits
None of the above
None of the above
#16.
Which of the following is invalid hexadecimal number?
A0XB
A0XB
A0F6
A0F6
4568
4568
ACDB
ACDB
#17.
What type of information system would be recognised by digital circuits?
Hexadecimal system
Hexadecimal system
Binary system
Binary system
Both ‘1’ and ‘2’
Both ‘1’ and ‘2’
Only roman system
Only roman system
#18.
The binary equivalent of decimal number 98 is
1110001
1110001
1110100
1110100
1100010
1100010
1111001
1111001
None of these
None of these
#19.
The binary number 10101 is equivalent to decimal number .............
19
19
12
12
27
27
21
21
#20.
What is the value of the binary number 101?
3
3
5
5
6
6
101
101
#21.
To convert binary number to decimal, multiply the all binary digits by power of
0
0
2
2
4
4
6
6
#22.
Which of the following is a hexadecimal number equal to 3431 octal number?
197
197
917
917
791
791
971
971
719
719
#23.
The method used for the conversion of octal to decimal fraction is
digit is divided by 8
digit is divided by 8
digit is multiplied by the corresponding power of 8
digit is multiplied by the corresponding power of 8
digit is added with 8
digit is added with 8
digit is subtracted with 8
digit is subtracted with 8
#24.
MSD refers as
Most Significant Digit
Most Significant Digit
Many Significant Digit
Many Significant Digit
Multiple Significant Digit
Multiple Significant Digit
Most Significant Decimal
Most Significant Decimal
#25.
LSD stands for
Long Significant Digit
Long Significant Digit
Least Significant Digit
Least Significant Digit
Large Significant Digit
Large Significant Digit
Longer Significant Decimal
Longer Significant Decimal
#26.
How many values can be represented by a single byte?
4
4
16
16
64
64
256
256
#27.
Which of the following is not a computer code?
EBCDIC
EBCDIC
ASCII
ASCII
CISC
CISC
UNICODE
UNICODE
#28.
ASCII stands for
American Special Computer for Information Interaction
American Special Computer for Information Interaction
American Standard Computer for Information Interchange
American Standard Computer for Information Interchange
American Special Code for Information Interchange
American Special Code for Information Interchange
American Special Computer for Information Interchange
American Special Computer for Information Interchange
American Standard Code for Information Interchange
American Standard Code for Information Interchange
#29.
The most widely used code that represents each character as a unique 8-bit code is
ASCII
ASCII
UNICODE
UNICODE
BCD
BCD
EBCDIC
EBCDIC
None of these
None of these
#30.
Today’s mostly used coding system is/are
ASCII
ASCII
EBCDIC
EBCDIC
BCD
BCD
Both ‘1’ and ‘2’
Both ‘1’ and ‘2’
#31.
In EBCDIC code, maximum possible characters set size is
356
356
756
756
556
556
256
256
#32.
Code ‘EBCDIC’ that is used in computing stands for
Extension BCD Information Code
Extension BCD Information Code
Extended BCD Information Code
Extended BCD Information Code
Extension BCD Interchange Conduct
Extension BCD Interchange Conduct
Extended BCD Interchange Conduct
Extended BCD Interchange Conduct
#33.
Most commonly used codes for representing bits are
ASCII
ASCII
BCD
BCD
EBCDIC
EBCDIC
All of these
All of these
#34.
The coding system allows non-english characters and special characters to be represented
ASCII
ASCII
UNICODE
UNICODE
EBCDIC
EBCDIC
All of these
All of these
#35.
Which of the following character set supports Japanese and Chinese fonts?
EBCDIC
EBCDIC
ASCII
ASCII
BC
BC
ECBI
ECBI
UNICODE
UNICODE
#36.
Two inputs A and B of NAND gate have 0 output, if
A is 0
A is 0
B is 0
B is 0
both are zero
both are zero
both are 1
both are 1
#37.
Gate having output 1 only when one of its input is 1 is called
AND
AND
NOT
NOT
OR
OR
NOR
NOR
#38.
Gate is also known as inverter.
OR
OR
NOT
NOT
XOR
XOR
NAND
NAND
#39.
The only function of NOT gate is to ........
Stop signal
Stop signal
Invert input signal
Invert input signal
Act as a universal gate
Act as a universal gate
Double input signal
Double input signal
Half input signal
Half input signal
#40.
The NAND gate is AND gate followed by ......
NOT gate
NOT gate
OR gate
OR gate
OR gate
OR gate
NOR gate
NOR gate
XOR gate
XOR gate
#41.
The NOR gate is OR gate followed by ........
AND gate
AND gate
NAND gate
NAND gate
NOT gate
NOT gate
OR gate
OR gate
XOR gate
XOR gate
#42.
The NOR gate output will be high if the two inputs are
00
00
01
01
10
10
11
11
None of these
None of these
#43.
Which of following are known as universal gates?
NAND & NOR
NAND & NOR
AND & OR
AND & OR
XOR & OR
XOR & OR
AND
AND
OR
OR
#44.
Gate whose output is 0 only when inputs are different is called
XOR
XOR
XNOR
XNOR
NOR
NOR
NAND
NAND
None of these
None of these
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