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SCDL Solved Assignments and Sample Papers

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Thursday, July 4, 2024

Pgdds sem 2 - python programming.

POST GRADUATE DIPLOMA IN DATA SCIENCE

Please verify the answers as they might be incorrect also.

1. MCQ: What is Python primarily known for?

A. Web Development

B. Data Science

C. Easy syntax

D. Mobile Development

Answer: C. Easy syntax

2. Fill in the Blanks: Python was created by _______.

Answer: Guido van Rossum

3. Match the Following:

a. Python 2 - iii. Released in 2000

b. Python 3 - i. Released in 2008

c. PEP 8 - ii. Style Guide

Variables, Expressions, and Statements

4. MCQ: What is the correct syntax to assign a value to a variable in Python?

Answer: B. x = 10

5. Fill in the Blanks: The expression 5 + 3 * 2 evaluates to ______.

6. Match the Following:

a. Variable - iii. Stores data

b. Expression - i. Combination of values

c. Statement - ii. Performs an action

Control Structures, Data Structures - Arrays and Linked Lists, Queues

7. MCQ: Which of the following is a control structure in Python?

C. Linked List

Answer: A. if-else

8. Fill in the Blanks: The data structure that allows adding elements at one end and removing from the other is called ______.

Answer: Queue

9. Match the Following:

a. Array - i. Fixed size

b. Linked List - ii. Dynamic size

c. Queue - iii. FIFO

10. MCQ: How do you define a function in Python?

A. def function_name():

B. function function_name():

C. create function_name():

D. define function_name():

Answer: A. def function_name():

11. Fill in the Blanks: Functions help in reducing ________ in code.

Answer: Redundancy

12. Match the Following:

a. def - i. Keyword to define a function

b. return - ii. Sends back a value

c. parameter - iii. Input to a function

Conditionals, Recursion, and Iteration

13. MCQ: What is a base case in recursion?

A. A loop condition

B. A recursive call

C. A condition where recursion stops

D. An iterative process

Answer: C. A condition where recursion stops

14. Fill in the Blanks: The keyword used to create a loop that repeats as long as a condition is true is ______.

Answer: while

15. Match the Following:

a. if - iii. Conditional statement

b. for - i. Iterative loop

c. recursion - ii. Function calling itself

16. MCQ: Which of the following is a valid way to concatenate strings in Python?

A. str1 - str2

B. str1 + str2

C. str1 * str2

D. str1 / str2

Answer: B. str1 + str2

17. Fill in the Blanks: The method to convert a string to lowercase is ______.

Answer: lower()

18. Match the Following:

a. upper() - ii. Converts to uppercase

b. find() - iii. Searches for a substring

c. replace() - i. Replaces a substring

Lists and Tuples

19. MCQ: Which of the following is a mutable data type in Python?

Answer: A. List

20. Fill in the Blanks: Tuples are immutable, whereas lists are ______.

Answer: mutable

21. Match the Following:

a. list.append() - ii. Adds an element

b. tuple.count() - iii. Counts occurrences

c. list.sort() - i. Sorts the list

Dictionaries

22. MCQ: How do you access the value associated with a key in a dictionary?

A. dict.key

B. dict[key]

C. dict.key()

D. dict[key()]

Answer: B. dict[key]

23. Fill in the Blanks: The method to add a key-value pair to a dictionary is ______.

Answer: update()

24. Match the Following:

a. keys() - ii. Returns keys

b. values() - iii. Returns values

c. items() - i. Returns key-value pairs

Object-Oriented Programming

25. MCQ: What is the term for a blueprint of an object in OOP?

A. Function

Answer: B. Class

26. Fill in the Blanks: The process of creating an instance of a class is called ______.

Answer: instantiation

27. Match the Following:

a. init - iii. Constructor

b. self - i. Refers to the instance

c. inheritance - ii. Deriving from a class

Files and Error Handling

28. MCQ: Which keyword is used to handle exceptions in Python?

Answer: C. except

29. Fill in the Blanks: The method used to read the entire contents of a file is ______.

Answer: read()

30. Match the Following:

a. open() - i. Opens a file

b. close() - ii. Closes a file

c. IOError - iii. File handling error

Testing, Debugging, and Profiling

31. MCQ: What is the purpose of unit testing?

A. To find syntax errors

B. To test individual units of code

C. To optimize performance

D. To debug the entire program

Answer: B. To test individual units of code

32. Fill in the Blanks: The Python module used for debugging is ______.

Answer: pdb

33. Match the Following:

a. unittest - i. Testing framework

b. assert - iii. Statement for testing

c. cProfile - ii. Profiling tool

Handling Data with Python

34. MCQ: Which library is commonly used for data manipulation in Python?

D. Matplotlib

Answer: B. Pandas

35. Fill in the Blanks: The data structure used in Pandas for 1-dimensional data is called ______.

Answer: Series

36. Match the Following:

a. read_csv() - ii. Reads CSV files

b. DataFrame - iii. 2D data structure

c. merge() - i. Combines dataframes

Python Graphical User Interface Development

37. MCQ: Which library is commonly used for creating GUIs in Python?

B. Matplotlib

Answer: C. Tkinter

38. Fill in the Blanks: The method to start the main loop in a Tkinter application is ______.

Answer: mainloop()

39. Match the Following:

a. Button - i. Creates a button

b. Label - ii. Displays text

c. Entry - iii. Single-line text field

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SCDL Assignments

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Wednesday, September 4, 2024

Cbse first semester class semester-1 mathematics cherry.

**II. True and False [Marks: 7]**

1. Box A has 9 chocolates. Box B has 9 chocolates. Boxes A and B have the same number of chocolates. ✓ (1)

2. The number name of 7 is eight. ✗ (1)

3. 72 is greater than 75. ✗ (1)

4. 68 in words is fifty-eight. ✓ (1)

5. Three halves together make a whole. ✗ (1)

6. When a whole is divided equally into 2 halves, each part is known as quarter. ✗ (1)

7. If pizza is cut into 4 equal pieces and one is eaten by a boy, then we can say that half of the pizza is eaten by the boy. ✓ (1)

**III. Complete the pattern:**(2)

**IV. Identify the largest number in each of the following.**

1. 16, 18, 21, 36 ✓ (1)

2. 34, 53, 69, 89 ✓ (1)

**V. 3 girls are playing. 4 more girls join them. How many girls are playing altogether?**

3+4=7 ✓ (2)

**VI. There are ten balloons kept in a line. First two are white, next two are green, next two are red, next two are pink and last two are yellow. What is the color of:**

1. fifth balloon: **red** ✓

2. seventh balloon: **pink** ✓

3. second balloon: **white** ✓

4. tenth balloon: **yellow** ✓

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