Encoding Schemes and Number System Class 11 MCQ

Teachers and Examiners (CBSESkillEduction) collaborated to create the Encoding Schemes and Number System Class 11 MCQ. All the important Information are taken from the NCERT Textbook Computer Science (083) class 11.

Encoding Schemes and Number System Class 11 MCQ

1. When a key on the keyboard is pressed, it is internally mapped to a unique code, which is further converted to __________.
a. Binary
b. Decimal
c. Object
d. None of the above

Show Answer ⟶
a. Binary

2. The mechanism of converting data into an equivalent cipher using specific code is called __________.
a. Software
b. Encoding
c. Hardware
d. None of the above

Show Answer ⟶
b. Encoding

3. ASCII Stands for ______________.
a. American Standard Code for Interchange Information
b. American Standard Code for Information Interchange
c. American Simple Code for Interchange Information
d. None of the above

Show Answer ⟶
b. American Standard Code for Information Interchange

4. ASCII used __________ bits to represent characters.
a. 8 Bits
b. 7 bits
c. 6 bits
d. 5 bits

Show Answer ⟶
b. 7 bits

Encoding Schemes and Number System Class 11 MCQ

5. Encoding scheme _________ was developed for standardizing the character representation.
a. Software
b. Hardware
c. ASCII
d. None of the above

Show Answer ⟶
c. ASCII

6. ISCII Stands for ___________.
a. Indian Script Code for Information Interchange
b. Indonesia Standard Code for Information Interchange
c. Indian Simple Code for Interchange Information
d. None of the above

Show Answer ⟶
a. Indian Script Code for Information Interchange

7. ISCII is an ______ bit code representation for Indian languages.
a. 8 – bit
b. 7 – bit
c. 6 – bit
d. 5 – bit

Show Answer ⟶
a. 8 – bit

8. __________ provides a unique number for every character, irrespective of device (server, desktop, mobile), operating system (Linux, Windows, iOS) or software application (different browsers, text editors, etc.).
a. ISCII
b. ASCII
c. Unicode
d. None of the above

Show Answer ⟶
c. Unicode

9. Commonly used UNICODE encodings are ___________.
a. UTF-8
b. UTF-16
c. UTF-32
d. All of the above

Show Answer ⟶
d. All of the above

Encoding Schemes and Number System Class 11 MCQ

10. The code for character “A” belongs to _________ASCII code.
a. 65
b. 66
c. 67
d. 68

Show Answer ⟶
a. 65

11. The code for character “a” belongs to _________ASCII code.
a. 96
b. 97
c. 98
d. 99

Show Answer ⟶
b. 97

12. Every number system has a set of unique characters or literals. The count of these literals is called the __________.
a. Radix
b. Base of the number system
c. Both a) and b)
d. None of the above

Show Answer ⟶
c. Both a) and b)

13. What is the base of Binary number _______.
a. Base 2
b. Base 16
c. Base 10
d. Base 8

Show Answer ⟶
a. Base 2

14. Hexadecimal number is called ________ system.
a. Base 2
b. Base 16
c. Base 10
d. Base 8

Show Answer ⟶
b. Base 16

Encoding Schemes and Number System Class 11 MCQ

15. Decimal number system is called __________ system.
a. Base 2
b. Base 16
c. Base 10
d. Base 8

Show Answer ⟶
c. Base 10

16. Octal number system is called ________ system.
a. Base 2
b. Base 16
c. Base 10
d. Base 8

Show Answer ⟶
d. Base 8

17. Hexadecimal numbers are a mixture of _____________
a. Octal and decimal numbers
b. Binary and decimal numbers
c. Letters and decimal digits
d. Binary and octal numbers

Show Answer ⟶
c. Letters and decimal digits

18. ASCII code is an
a. Alphabet code
b. Numeric code
c. Alpha numeric code
d. Cyclic code

Show Answer ⟶
c. Alpha numeric code

19. ASCII Code is a 7 bit code for ________
a. Letters
b. Other symbols
c. Numbers
d. All of the above

Show Answer ⟶
d. All of the above

Encoding Schemes and Number System Class 11 MCQ

20. The two’s complement in binary system is useful for expressing
a. Positive numbers
b. Both positive and negative numbers
c. Negative numbers
d. None of the above

Show Answer ⟶
c. Negative numbers

21. The binary number 10011101 is equal to the decimal number
a. 9E
b. 9D
c. 9F
d. FU

Show Answer ⟶
b. 9D

22. Name the number system which uses alphabets as well as numerals
a. Binary
b. Decimal Number System
c. Octal Number System
d. Hexadecimal Number System

Show Answer ⟶
d. Hexadecimal Number System

23. Which out of the following Binary numbers is equivalent to decimal number 24
a. 110111
b. 111111
c. 11000
d. 11001

Show Answer ⟶
c. 11000

24. One Nibble contain the number of bits equal to
a. 2
b. 4
c. 8
d. 16

Show Answer ⟶
b. 4

Encoding Schemes and Number System Class 11 MCQ

25. The largest two-digit hexadecimal number is _________.
a. (FD)16
b. (FE)16
c. (FF)16
d. (EF)16

Show Answer ⟶
c. (FF)16

26. The ICs (Integrated Circuits) in a computer are made up of a large number of _________.
a. Transistors
b. Capacitors
c. Resistance
d. None of the above

Show Answer ⟶
a. Transistors

27. Electronic signals are also represent as ________.
a. ON and OFF
b. High and Low
c. Both a) and b)
d. None of the above

Show Answer ⟶
c. Both a) and b)

28. The ON/ high and OFF/low state of a transistor is represented using the two digits _________.
a. 1 and 0
b. 2 and 9
c. 3 and 8
d. None of the above

Show Answer ⟶
a. 1 and 0

29. A binary number can be mapped to an equivalent _________ that can be easily understood by the human.
a. Decimal Number
b. Unicode
c. ASCII code
d. None of the above

Show Answer ⟶
a. Decimal Number

Encoding Schemes and Number System Class 11 MCQ

30. Octal number system was devised for ___________ of the binary numbers.
a. Brief representation
b. Compact representation
c. Both a) and b)
d. None of the above

Show Answer ⟶
b. Compact representation

31. Octal number system is called base-8 system as it has total eight digits _______.
a. 1 to 8
b. 0 to 7
c. 2 to 9
d. None of the above

Show Answer ⟶
b. 0 to 7

32. Hexadecimal number consists of 16 unique symbols _________.
a. 0 – 9
b. A – F
c. Both a) and b)
d. None of the above

Show Answer ⟶
c. Both a) and b)

33. The decimal numbers 10 through 15 are represented by the letters _________ in Hexadecimal Number.
a. A to F
b. F to K
c. K to P
d. None of the above

Show Answer ⟶
a. A to F

34. Hexadecimal numbers are also used for describing the _________ on the webpage.
a. Tag
b. Color
c. Both a) and b)
d. None of the above

Show Answer ⟶
b. Color

Encoding Schemes and Number System Class 11 MCQ

35. To convert decimal to binary, which decimal number is repeatedly used.
a. 2
b. 3
c. 4
d. 5

Show Answer ⟶
a. 2

36. To convert decimal to octal, which decimal number is repeatedly used.
a. 2
b. 8
c. 16
d. 32

Show Answer ⟶
b. 8

37. To convert decimal to Hexadecimal, which decimal number is repeatedly used.
a. 2
b. 8
c. 16
d. 32

Show Answer ⟶
c. 16

38. Textual data is encoded using __________.
a. ASCII
b. ISCII
c. Unicode
d. All of the above

Show Answer ⟶
d. All of the above

39. _________ scheme is a character encoding standard which can encode all the characters of almost all languages of the world.
a. ASCII
b. ISCII
c. Unicode
d. All of the above

Show Answer ⟶
c. Unicode
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