END TERM EXAMINATION

Third Semester (BCA) December 2024

Paper Code: BCAT-211

Subject: Basics of Python Programming

Time: 3 Hours

Maximum Marks: 60

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:

(i) Give a brief account of the origin and need for Python Programming. 5
(ii) Write two modes of Python IDLE. 5
(iii) Explain any two methods of List with examples. 5
(iv) Give an account of the difference between Formal and Actual Arguments. 5
(v) Briefly explain the features of Python Programming Language. 5
(vi) Explain any two features of Python Programming Language. 5
(vii) Differentiate between Files and Immutable Objects. 5
(viii) Explain the concept of Files and Mutable Objects. 5
(ix) What is a membership operator in Python? Explain it with an example. 5
(x) Explain NumPy Library in brief. 5

UNIT-I

Q2. (a) Explain in detail the various data types in Python Programming Language. 5

(b) Differentiate between for Loop and while Loop with Python code. 5

Q3. (a) Explain in detail about the various Operators in Python Programming Language. 5

(b) What are Strings in Python Programming Language? Give examples of various String handling functions and methods in Python. 5

UNIT-II

Q4. (a) Explain the Dictionary and its various operations and methods with examples. 5

(b) Make a list of the first 10 letters of the alphabet, then use the list to do the following operations: 5

(i) Print the first 3 letters of the list
(ii) Print any 3 letters from the middle(6)

Q5. (a) Explain Tuples and its various operations and methods with examples. 5

(b) Create a dictionary whose keys are month names and whose values are the number of days in the corresponding month. 5

(i) Ask the user to enter a month name and use the dictionary to tell them how many days are in the month.
(ii) Print all the months with 31 days.
(iii) Print out all the months with less than 31 days.

UNIT-III

Q6. (a) Write a program that uses a user-defined function that accepts name prefixes (as M for Male, F for Female) and prefixes Mr. / Ms. Based on the gender. 5

(b) Explain any three methods of math module with an example. 5

Q7. (a) Write a menu-driven program to implement a basic calculator. 5

(b) Explain any three methods of random module with an example. 5

UNIT-IV

Q8. (a) Create a binary file with roll number, name, marks and perform the following operations. 5

(i) Update the marks.
(ii) Delete the records.
(iii) Display the records.

(b) Explain the features of the NumPy Library. Explain any two methods of NumPy Library. 5

Q9. (a) Create a binary file with Item number, Name, Price and perform the following operations. 5

(i) Search the marks.
(ii) Append the records.
(iii) Display the records.