Data Representation

Question 1What are the bases of decimal, octal, binary and hexadecimal systems ?

Question 2What is the common property of decimal, octal, binary and hexadecimal number systems ?

Question 3Complete the sequence of following binary numbers : 100, 101, 110, ............... , ............... , ............... .

Question 4Complete the sequence of following octal numbers : 525, 526, 527, ............... , ............... , ............... .

Question 5Complete the sequence of following hexadecimal numbers : 17, 18, 19, ............... , ............... , ............... .

Question 6Convert the following binary numbers to decimal and hexadecimal:(a) 1010(b) 111010(c) 101011111(d) 1100(e) 10010101(f) 11011100

Question 7Convert the following decimal numbers to binary and octal :(a) 23(b) 100(c) 145(d) 19(e) 121(f) 161

Question 8Convert the following hexadecimal numbers to binary :(a) A6(b) A07(c) 7AB4(d) BE(e) BC9(f) 9BC8

Question 9Convert the following binary numbers to hexadecimal and octal :(a) 10011011101(b) 1111011101011011(c) 11010111010111(d) 1010110110111(e)...

Question 1

Question 1The Decimal number system is composed of 10 unique symbols.

Question 2The Binary number system is composed of 2 unique symbols.

Question 3The Octal number system is composed of 8 unique symbols.

Question 4The Hexadecimal number system is composed of 16 unique symbols.

Question 5The illegal digits of octal number system are 8 and 9.

Question 6Hexadecimal number system recognizes symbols 0 to 9 and A to F.

Question 7Each octal number is replaced with 3 bits in octal to binary conversion.

Question 8Each Hexadecimal number is replaced with 4 bits in Hex to binary conversion.

Question 9ASCII is a 7 bit code while extended ASCII is a 8 bit code.

Question 10The Unicode encoding scheme can represent all symbols/characters of most languages.

Question 11The ISCII encoding scheme represents Indian Languages' characters on computers.

Question 12UTF8 can take upto 4 bytes to represent a symbol.

Question 13UTF32 takes exactly 4 bytes to represent a symbol.

Question 14Unicode value of a symbol is called code point.

Question 1The value of radix in binary number system is ..........2 ✓81016

Question 2The value of radix in octal number system is ..........28 ✓1016

Question 3The value of radix in decimal number system is ..........2810 ✓16

Question 4The value of radix in hexadecimal number system is ..........281016 ✓

Question 5Which of the following are not valid symbols in octal number system ?28 ✓9 ✓7

Question 6Which of the following are not valid symbols in hexadecimal number system ?289G ✓F

Question 7Which of the following are not valid symbols in decimal number system ?289G ✓F ✓

Question 8The hexadecimal digits are 1 to 0 and A to ..........EF ✓GD

Question 9The binary equivalent of the decimal number 10 is ..........0010101010 ✓010

Question 10ASCII code is a 7 bit code for ..........lettersnumbersother symbolall of these ✓

Question 11How many bytes are there in 1011 1001 0110 1110 numbers?12 ✓48

Question 12The binary equivalent of the octal Numbers 13.54 is.....1011.10111001.11101101.1110 ✓None of these

Question 13The octal equivalent of 111 010 is.....8172 ✓7182

Question 14The input hexadecimal representation of 1110 is ..........0111E ✓1514

Question 15Which of the following is not a binary number ?111110111E ✓000

Question 16Convert the hexadecimal number 2C to decimal:3A3444 ✓43

Question 17UTF8 is a type of .......... encoding.ASCIIextended ASCIIUnicode ✓ISCII

Question 18UTF32 is a type of .......... encoding.ASCIIextended ASCIIUnicode ✓ISCII

Question 19Which of the following is not a valid UTF8 representation?2 octet (16 bits)3 octet (24 bits)4 octet (32 bits)8 octet (64 bits) ✓

Question 20Which of the following is not a valid encoding scheme for characters ?ASCIIISCIIUnicodeESCII ✓

Question 1A computer can work with Decimal number system.False

Question 2A computer can work with Binary number system.True

Question 3The number of unique symbols in Hexadecimal number system is 15.False

Question 4Number systems can also represent characters.False

Question 5ISCII is an encoding scheme created for Indian language characters.True

Question 6Unicode is able to represent nearly all languages' characters.True

Question 7UTF8 is a fixed-length encoding scheme.False

Question 8UTF32 is a fixed-length encoding scheme.True

Question 9UTF8 is a variable-length encoding scheme and can represent characters in 1 through 4 bytes.True

Question 10UTF8 and UTF32 are the only encoding schemes supported by Unicode.False

Question 1What are some number systems used by computers ?

Question 2What is the use of Hexadecimal number system on computers ?

Question 3What does radix or base signify ?

Question 4What is the use of encoding schemes ?

Question 5Discuss UTF-8 encoding scheme.

Question 6How is UTF-8 encoding scheme different from UTF-32 encoding scheme ?

Question 7What is the most significant bit and the least significant bit in a binary code ?

Question 8What are ASCII and extended ASCII encoding schemes ?

Question 9What is the utility of ISCII encoding scheme ?

Question 10What is Unicode ? What is its significance ?

Question 11What all encoding schemes does Unicode use to represent characters ?

Question 12What are ASCII and ISCII ? Why are these used ?

Question 13What are UTF-8 and UTF-32 encoding schemes. Which one is more popular encoding scheme ?

Question 14What do you understand by code point ?

Question 15What is the difference between fixed length and variable length encoding schemes ?

Question 1Convert the following binary numbers to decimal:(a) 1101

Question 2Convert the following binary numbers to decimal :(a) 1100

Question 3Convert the following decimal numbers to binary:(a) 23

Question 4Convert the following decimal numbers to binary:(a) 19

Question 5Convert the following decimal numbers to octal:(a) 19

Question 6Convert the following hexadecimal numbers to binary:(a) A6

Question 7Convert the following hexadecimal numbers to binary:(a) 23D

Question 8Convert the following binary numbers to hexadecimal:(a) 10011011101

Question 9Convert the following binary numbers to hexadecimal:(a) 1010110110111

Question 10Convert the following octal numbers to decimal:(a) 257

Question 11Convert the following hexadecimal numbers to decimal:(a) A6

Question 12Convert the following hexadecimal numbers to decimal:(a) E9

Question 13Convert the following decimal numbers to hexadecimal:(a) 132

Question 14Convert the following decimal numbers to hexadecimal:(a) 206

Question 15Convert the following hexadecimal numbers to octal:(a) 38AC

Question 16Convert the following octal numbers to binary:(a) 123

Question 17Convert the following octal numbers to binary:(a) 7642

Question 18Convert the following binary numbers to octal(a) 111010

Question 19Convert the following binary numbers to octal(a) 11001

Question 20Add the following binary numbers:(i) 10110111 and 1100101

Question 21Given that A's code point in ASCII is 65, and a's code point is 97. What is the binary representation of 'A' in ASCII ? (and what's its...

Question 22Convert the following binary numbers to decimal, octal and hexadecimal numbers.(i) 100101.101