The Chennai School Of banking

COMPUTER KNOWLEDGE Data Representation

Question No : 1

To perform calculation on stored data computer uses _______ number system.
(1) decimal
(2) hexadecimal
(3) octal
(4) binary
(5) None of these

Question No : 2

A hexadecimal number is represented by
(1) three digits
(2) four binary digits
(3) four digits
(4) All of these
(5) None of these
 

Question No : 3

Decimal number system is the group of _______ numbers.
(1) 0 or 1
(2) 0 to 9
(3) 0 to 7
(4) 0 to 9 & A to F
(5) None of these

Question No : 4

Hexadecimal number system has ______ base.
(1) 2
(2) 8
(3) 10
(4) 16
(5) None of these

Question No : 5

Hexadecimal number system consists
(1) 0 to 9
(2) A to F
(3) Both ‘1’ and ‘2’
(4) Either ‘1’ or ‘2’                         
(5) Neither ‘1’ or ‘2’
 

Question No : 6

In the binary language, each letter of the alphabet, each number and each special character is made up of a unique combination of
(1) 8 bytes
(2) 8 KB
(3) 8 character
(4) 8 bits
(5) None of these

Question No : 7


(1) 11
(2) 10
(3) 1
(4) 15
(5) 13
 

Question No : 8

The number system based on ‘0’ and ‘1’ only, is known as
(1) binary system
(2) barter system
(3) number system
(4) hexadecimal system
(5) special system

Question No : 9

What is the value of the binary number 101?
(1) 3
(2) 5
(3) 6
(4) 101
(5) None of these
 

Question No : 10

Which of the following is an example of binary number?
(1) 6AH1
(2) 100101
(3) 005
(4) ABCD
(5) 23456

Question No : 11

Which of the following is not a binary number?
(1) 001
(2) 101
(3) 202
(4) 110
(5) 011
 

Question No : 12

There are how many types of number system?
(1) One
(2) Two
(3) Three
(4) Four
(5) Five

Question No : 13

Modern computers represent characters and numbers internally using one of the following number systems
(1) penta
(2) octal
(3) hexa
(4) septa
(5) binary

Question No : 14

What type of information system would be recognized by digital circuits?
(1) Hexadecimal system
(2) Binary system
(3) Both ‘1’ and ‘2’
(4) Only roman system
(5) None of these
 

Question No : 15

How many values can be represented by a single byte?
(1) 4
(2) 16
(3) 64
(4) 256
(5) 512

Question No : 16

Which of the following is not a computer code?
(1) EBCDIC
(2) ASCII
(3) CISC
(4) UNICODE
(5) None of these
 

Question No : 17

The coding system allows non-english characters and special characters to be represented
(1) ASCII
(2) UNICODE
(3) EBCDIC
(4) ANSIC
(5) None of these
 

Question No : 18

The most widely used code that represents each character as a unique 8-bit code is
(1) ASCII
(2) UNICODE
(3) BCD
(4) EBCDIC
(5) None of the above
 

Question No : 19

A hexadigit can be represent by
(1) three binary (consecutive) bits
(2) four binary (consecutive) bits
(3) eight binary (consecutive) bits
(4) sixteen binary (consecutive) bits
(5) None of the above
 

Question No : 20

MSD refers as
(1) Most Significant Digit
(2) Many Significant Digit
(3) Multiple Significant Digit
(4) Most Significant Decimal
(5) None of the above
 

Question No : 21

Binary system is also called
(1) base one system
(2) base two system
(3) base system
(4) binary system
(5) None of these
 

Question No : 22

The negative numbers in the binary system can be represented by
(1) Sign magnitude
(2) 1’s compliment
(3) 2’s compliment
(4) All of these
(5) None of these

 

Question No : 23

ASCII code for letter  A is
(1) 1100011
(2) 1000001
(3) 1111111
(4) 0010011
(5) None of these

Question No : 24

ASCII stands for
(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
 

Question No : 25

Today’s mostly used coding system is/are
(1) ASCII
(2) EBCDIC
(3) BCD
(4) Both ‘1’ and ‘2’
(5) All of these
 

Question No : 26

BIT stands for ______
(1) Before Instructed Task
(2) Built In Task
(3) Binary Digit
(4) Before initial Task
(5) Before Interpreting Task
 

Question No : 27

ASCII code for letter  A is
(1) 1100011
(2) 1000001
(3) 1111111
(4) 0010011
(5) None of these

Question No : 28

The alphabetical letters, digits from 0 or other special characters are said to be included in
(1) alphanumeric characters
(2) graphics characters
(3) control characters
(4) character sets
(5) None of these

Question No : 29

The method used to store integers is classified as
(1) sign and magnitude method
(2) twos complement method
(3) ones complement method
(4) threes complement method
(5) None of these
 

Question No : 30

The set of ‘ordinary numbers’ is also called
(1) integers
(2) whole numbers
(3) natural numbers
(4) real numbers
(5) None of these

Question No : 31

The pictures and graphs that are to be printed with the help of chosen characters are called
(1) graphics characters
(2)  alphanumeric characters
(3) character sets
(4) control characters
(5) None of these

Question No : 32

The complete set of special characters used by any system is classified as
(1) control characters
(2)  graphics characters
(3) character set
(4) alphanumeric characters
(5) None of these
 

Question No : 33

The number of bits in ‘ASCII’ code used in computing are
(1) five bits
(2) six bits
(3) twenty bits
(4) ten bits
(5) None of these
 

Question No : 34

The actual digits present in any figure is called its
(1) mantissa
(2) exponent
(3) base
(4) base power
(5) None of these

Question No : 35

The value of binary 1111 is

(2) 24


(5) None of these

Question No : 36

The octal system
(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 these
 

Question No : 37

 Which of the following statements is true?
(1) 1 gigabyte is equivalent to 1024 kilobyte
(2) Mb stands for megagigabyte
(3) Octal number system having 8 digits
(4) Decimal number system cannot contain binary digits
(5) None of the above