Home / Computer Science with Python[Type A] Python Revision Tour-1 – Chapter 1 Computer Science with Python | CBSE Class 12 Sumita Arora Table of Contents 1. What are tokens in Python? How many types of tokens are allowed in Python? Exemplify your answer. 2. How are keywords different from identifiers? 3. What are literals in Python? How many types of literals are allowed in Python? 4. Can non-graphic characters be used and processed in Python? How? 5. Out of the following, find those identifiers, which cannot be used for naming Variables or Functions in a Python program: Price*Qty, class, For, do, 4thCol, totally, Row31, _Amount 6. How are floating constants represented in Python? 7. How are string literals represented and implemented in Python? 8. What are operators? What is their function? Give examples of some unary and binary operators. 9. What is an expression and a statement? 10. What all components can a Python program contain? 11. What are variables? How are they important for a program? 12. Describe the concepts of block and body. What is indentation and how is it related to block and body? 13. What are data types? How are they important? 14. How many integer types are supported by Python? Name them. 15. What are immutable and mutable types? List immutable and mutable types of Python. 16. What is the difference between implicit type conversion and explicit type conversion? 17. An immutable data type is one that cannot change after being created. Give three reasons to use immutable data. 18. What is an entry-controlled loop? Which loop is an entry-controlled loop in Python? 19. Explain the use of the pass statement. Illustrate it with an example. 20. Below are seven segments of code. Indicate the data type of each colored part. 10. What all components can a Python program contain? A Python program can contain modules, statements, expressions, functions, classes, objects, and various other components. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
