Chapter 2 : Encoding Schemes and Number System | Chapterwise Important MCQs Question for Class 11th computer science

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

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

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

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

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

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

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

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

c. Unicode

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

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

a. 65

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

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

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

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

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 8Hide Answer ⟵

c. Base 10

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

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⟵

c. Letters and decimal digits

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

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

d. All of the above