END TERM EXAMINATION

Paper Code: BCAT-211

Subject: Basics of Python Programming

Time: 3 Hours

Maximum Marks: 75

Note: Attempt five questions in all, including Q.no.1, which is compulsory. Select one question from each unit.

Q1. Write short notes on the following: (Any Five) (5x5=25)

(a) Elaborate - "Python is an interpreted as well as an integrated programming language?" 5
(b) How is a unary operator different from a binary operator? Give an example of each. 5
(c) Explain the use of the __init__ method in Python programming? 5
(d) Differentiate between list and tuple? 5
(e) Explain the use of pandas library with an example? 5
(f) Justify the significance of the self keyword? Give an example? 5

Q2.

(a) Explain while loop and for loop with an example. Elaborate the difference between them. 4.5
(b) Explain membership operator, identity operator, escape sequence, slicing with an example? 8

Q3.

(a) Perform the following slicing operation on the string "PYTHON PROGRAMMING":
string [2:15:2] ,
string [-3:-16:-2] ,
string [3:-16:2] ,
string [:13] ,
string [6:] ,
string [:-2] ,
string [3:14:3] 6
(b) Write a program to print stars in a right triangle pattern (value entered by the user)? 6.5

Q4.

(a) Differentiate between mutable and immutable objects with examples? 4.5

(b) Explain tuple, list, sets, dictionary in Python? Each with example. 8

Q5.

(a) Explain list methods- append, extend, remove, index, pop, insert, sort? Give example of each? 6.5
(b) Explain dictionary methods- len, str, clear, copy, update, get? Give an example of each. 6

Q6. Explain the concept of class, objects, functions, data member with help of program? Also explain call by value and call by reference?

Q7. Explain the following terms with examples:

(i) Scope and lifetime of a function.
(ii) Importing modules
(iii) Formal, Actual, Default, keyword arguments
(iv) Concept of modules 12.5

Q8.

(a) Elaborate the importance of pip command to install any library in Python? 4.5
(b) By using NumPy library in program, perform the following operations: Creation of 1D array, Re-shaping of an Array, Array Slicing, Aggregate Operations. 8

Q9.

(a) Explain file modes of file handling? Give example of each? 4.5
(b) Explain the use of NumPy, Pandas, Matplotlib in Python programming? Give example of each? 8