Data representation Questions and answers Data Representation MCQ Questions and answers with PDF for all Computer Related Competitive Exams ...
Data representation Questions and answers
Data Representation MCQ Questions and answers with PDF for all Computer Related Competitive Exams Preparation [GATE, IBPS, SBI (Bank PO & Clerk), SSC, Railway & Other Exams] and all Classes Students. If You Read These Questions You not need to Read Objective Computer Awareness Book by Arihant.
1. There are how many types
of number system?
(1) One
(2) Two
(3) Three
(4)
Four
2. Modern computers represent
characters and numbers internally using one of the following number systems.
(1) Penta
(2) Octal
(3) Hexa
(4) Septa
(5) Binary
Ans. 5
3. Which of the following is
not a binary number? [IBPS Clerk 2011]
(1) 001
(2) 101
(3) 202
(4) 110
(5) 011
Ans. 3
4. Binary system is also
called
(1) base one system
(2) base two system
(3) base system
(4) binary system
Ans. 2
5. Which of the following is
an example of binary number? [IBPS Clerk 2011]
(1) 6AH1
(2) 100101
(3) 005
(4) ABCD
(5) 23456
Ans. 2
6. Numbers that are written
with base 10 are classified as
(1) decimal number
(2) whole number
(3) hexadecimal number
(4) exponential integers
(5) Mantissa
Ans. 1
7. The octal system [IBPS
Clerk 2011]
(1) needs less digits to
represent a number than in the binary system
(2) needs more digits to
represent a number than in the binary system
(3) needs the same number of
digits to represent a number as in the binary system
(4) needs the same number of
digits to represent a number as in the decimal system
(5) None of the above
Ans. 1
8. Hexadecimal number system
has .......... base.
(1) 2
(2) 8
(3) 10
(4) 16
Ans. 4
9. Which of the following
character set supports Japanese and Chinese fonts? [IBPS Clerk Mains 2017]
(1) EBCDIC
(2) ASCII
(3) BC
(4) ECBI
(5) UNICODE
Ans. 5
10. ASCII stands for [IBPS
Clerk 2011,2014]
(1) American Special Computer
for Information Interaction
(2) American Standard
Computer for Information Interchange
(3) American Special Code for
Information Interchange
(4) American Special Computer
for Information Interchange
(5) American Standard Code
for Information Interchange
Ans. 5
11. Which of the following is
a hexadecimal number equal to 3431 octal number?
(1) 197
(2) 917
(3) 791
(4) 971
(5) 719
Ans. 5
12. LSD stands for
(1) Long Significant Digit
(2) Least Significant Digit
(3) Large Significant Digit
(4) Longer Significant
Decimal
Ans. 2
13. How many values can be
represented by a single byte?
(1) 4
(2) 16
(3) 64
(4) 256
Ans. 4
14. Which of the following is
not a computer code?
(1) EBCDIC
(2) ASCII
(3) CISC
(4) UNICODE
Ans. 3
15.
MSD refers as
(1) Most Significant Digit
(2) Many Significant Digit
(3) Multiple Significant Digit
(4) Most Significant
Decimal
Ans. 1
16. The most widely used code that represents
each character as a unique 8-bit code is [IBPS Clerk 2011]
(1) ASCII
(2) UNICODE
(3) BCD
(4) EBCDIC
(5) None of these
Ans. 1
17. Today’s mostly used
coding system is/are
(1) ASCII
(2) EBCDIC
(3) BCD
(4) Both ‘1’ and ‘2’
Ans. 4
18. In EBCDIC code, maximum
possible characters set size is
(1) 356
(2) 756
(3) 556
(4)
256
Ans. 4
19. Code ‘EBCDIC’ that is
used in computing stands for
(1) Extension BCD Information Code
(2) Extended
BCD Information Code
(3) Extension BCD Interchange Conduct
(4) Extended
BCD Interchange Conduct
Ans. 2
20. Most commonly used codes
for representing bits are
(1) ASCII
(2) BCD
(3) EBCDIC
(4) All of these
Ans. 4
21. The coding system allows
non-english characters and special characters to be represented
(1) ASCII
(2) UNICODE
(3) EBCDIC
(4) All of these
Ans. 2
22. Which of the following is
invalid hexadecimal number?
(1) A0XB
(2) A0F6
(3) 4568
(4) ACDB
Ans. 1
23. Gate having output 1 only when one of its
input is 1 is called
(1) AND
(2) NOT
(3) OR
(4)
NOR
Ans. 3
24. Gate is also known as inverter.
(1) OR
(2) NOT
(3) XOR
(4)
NAND
Ans. 2
25. The only function of NOT
gate is to ........
(1) Stop signal
(2) Invert input signal
(3) Act as a universal gate
(4) Double input signal
(5) Half input
signal
Ans. 2
26. Which of following are
known as universal gates?
(1) NAND & NOR
(2) AND & OR
(3) XOR & OR
(4) AND (5) OR
Ans. 1
27. Gate whose output is 0
only when inputs are different is called
(1) XOR
(2) XNOR
(3) NOR
(4) NAND
(5) None of these
Ans. 1
28. In the binary language,
each letter of the alphabet, each number and each special character is made up
of a unique combination of [BOB Clerk 2010]
a) 8 bytes
b) 8 KB
c) 8 character
d) 8 bits
Ans. D
29. Decimal equivalent of
(1111)2 is [IBPS Clerk 2012]
a) 11
b) 10
c) 1
d) 15
e) 13
Ans. D
30. ASCII code for letter A
is
a) 1100011
b) 1000001
c) 1111111
d) 0010011
Ans. B
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