Enrollment No. ...........

MID TERM EXAMINATION

Third Semester (BCA) NOV 2024

Paper Code: BCA-211

Subject: Basics of Python Programming

Time: 2 Hours

Maximum Marks: 60

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

Q1. (a) Explain the salient features of Python programming language. [5]

(b) Write a Python program to print a dictionary that contains a number (between 1 and n) in the form (x, x*x). [5]

(c) Explain the following operators in Python with examples: [5]

i) //
ii) **
iii) %

Q2. (a) Consider a string mystr = "Cinderella". Write a Python program to: [10]

i) Pick the word "der" from the upper case of character "e" in mystr.
ii) Get the total number of occurrences of character "e" in mystr.
iii) Check whether "der" exists in mystr.

(b) Write a program to find and calculate the square of only those numbers whose last significant digit is 5. [5]

Q3. (a) Write program control statements in Python. [5]

(b) Explain the following flow charts: [10]

i) For an integer list num = [145,32,14,65,97,172], write a Python program to replace all the occurrences of 3 with 9 and display the output.
ii) Explain the methods to access the functions (variable length) and default arguments in Python.

Q4. (a) Convert a 1D array of size 12 into 2D array of size 4x3. [5]

(b) Differentiate between list/tuple. Explain any two methods of element (with example) in list and tuple. [10]

Q5. (a) How can you define a function in Python (with keyword, positional, arbitrary (var args) and default arguments)? Explain with example. [10]

(b) Display the Python code to convert NumPy array into list. [5]