Questionnaire
1. Which type of cryptography uses a single common key for
both encryption and decryption?
(a) Public key cryptography
(b) Symmetric key cryptography
(c) Asymmetric key cryptography
(d) Hash function cryptography
Ans – B
2. What is the primary purpose of cryptography?
(a) To create digital currencies
(b) To enhance data transmission speed
(c) To protect information
(d) To ensure data availability
Ans – C
3. Why are strong passwords essential in software
programme?
(a) To simplify user login processes
(b) To reduce server load during logins
(c) To enhance aesthetic appeal of the interface
(d) To protect against unauthorised access
Ans – D
4. What advantages does end to end encryption provide for
communication?
(a) It allows third parties to intercept messages easily
(b) It ensures only intended recipients can read the
message
(c) It simplifies the data storage process
(d) It enhances the speed of message delivery
Ans – B
5. How did ancient Indian cryptography primarily function?
(a) For encoding personal messages
(b) To safeguard commercial secrets
(c) To ensure secure communication for military leaders
(d) For making public declarations
Ans – C
6. What is the base of the binary number system?
(a) 16
(b) 10
(c) 3
(d) 2
Ans – D
7. What does “Koti” represent in the ancient Indian
numbering system?
(a) 10 million
(b) 1 Lakh
(c) 1 Crore
(d) 1 Sankha
Ans – A
8. Which number system uses and digits 0-9 and A-F?
(a) Octal number system
(b) Decimal number system
(c) Binary number system
(d) Hexadecimal number system
Ans – D
9. What is the significance of understanding “Mahasankha”
in ancient Indian mathematics?
(a) It provides a method for measuring time
(b) It explains geometric shapes and their properties
(c) It helps interpret large numerical values accurately
(d) It simplifies basic arithmetic operation
Ans – C
10. How did ancient Indian numerals contribute to
modern mathematics?
(a) They introduced the concept of negative numbers
(b) They formed the basis for the decimal system
(c) They were primarily used for astronomical
calculations
(d) They simplified complex fractions in Commerce
Ans – B
11. What is the binary representation of decimal number
255?
(a) 10000000
(b) 10101010
(c) 11111111
(d) 11001100
Ans – C
12. Who rediscovered Vedic mathematics in the early
20th century?
(a) Sri Bharati Krishna Tirtha Maharaja
(b) Ramanujan
(c) Bhaskara II
(d) Aryabhata
Ans – A
13. Why is a sound knowledge of computational
mathematics essential for engineers?
(a) To focus only on traditional methods of problem-
solving.
(b) To understand and implement computer simulations
effectively.
(c) To memorize all mathematical formulas accurately.
(d) To avoid using any technological tools during
calculations.
Ans – B
14. How does mathematical modelling assist in solving
industrial problems?
(a) It transforms real-world issues into mathematical
language.
(b) It focuses solely on theoretical concepts without
application.
(c) It eliminates the need for data analysis entirely.
(d) It simplifies complex equations into basic arithmetic.
Ans – A
15. What is one of the main features of mathematical
modeling?
(a) The focus on developing new mathematical theories
without practical applications
(b) The application of mathematical techniques to solve
purely theoretical problems
(c) Transforming real-world problems into mathematical
language
(d) The ability to create complex algorithms for data
analysis
Ans – C
16. What is the value of (73)8 × (74)8 =
(a) (6724)8
(b) (1124)8
(c) (2164)8
(d) (7624)8
Ans – A
17. What is the value of (EC)16 × (E4)16 =
(a) (D320)16
(b) (D230)16
(c) (D330)16
(d) (D220)16
Ans – B
18. What is the literal meaning of “Veda”?
(a) Gender
(b) Kindness
(c) Understand
(d) Knowledge
Ans – D
TOPICS COVERED:
Cryptography in ancient India: Dr. Komal Asrani
Generalised number system: Dr. Chandrashekhar Nishad
Scientific and cultural value of mathematics: Prof. D.S. Hooda
Science in Vedic literature: Dr. Ram Nath Jha
