Python Programming Exam Questions

True (A)

int, float, str, list, tuple, dict, set

<p>variable</p> Signup and view all the answers

<p>Arithmetic Operators = Used for mathematical calculations Comparison Operators = Used to compare two values Logical Operators = Used to combine conditional statements Bitwise Operators = Used to perform operations on binary representations</p> Signup and view all the answers

<p>split() (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>By using the condition: year % 4 == 0 and (year % 100 != 0 or year % 400 == 0)</p> Signup and view all the answers

<p>chdir() (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>To check if a specified path is a file.</p> Signup and view all the answers

<p>rmdir</p> Signup and view all the answers

<p>chdir() = Changes the current working directory getcwd() = Returns the current working directory listdir() = Lists files in a directory walk() = Generates the file names in a directory tree</p> Signup and view all the answers

<p>CSV (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The diamond problem occurs in multiple inheritance when a class inherits from two classes that have a common ancestor, leading to ambiguity in method resolution.</p> Signup and view all the answers

<p>Vowels, consonants, and blanks (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>To combine two or more iterables into tuples.</p> Signup and view all the answers

<p>variance</p> Signup and view all the answers

<p>intersection() = Find common elements between sets union() = Combine all elements from multiple sets issubset() = Check if one set is a subset of another difference() = Find elements in one set that are not in another</p> Signup and view all the answers

<p>Mutable (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Pythonic code is code that follows Python's conventions and idiomatic practices, making it clear, readable, and efficient.</p> Signup and view all the answers

Operators used for mathematical operations like addition, subtraction, multiplication, and division.

Used to assign values to variables.

Operators used to compare values (e.g., equal to, greater than).

Different kinds of data Python can handle (e.g., numbers, text).

Names given to variables, functions, and other program elements.

Determining if a year is a leap year (divisible by 4, not 100 unless divisible by 400).

Strings in Python cannot be changed after creation.

Reversing the digits of a number and calculating the sum of the reversed digits

Write a Python program to count the number of vowels (a, e, i, o, u) in a given string.

Write a Python program to count the number of consonants in a given string.

Write a Python program to count the number of blank spaces in a given string.

Write a Python program to add two matrices of the same dimensions.

Write a Python program to find the transpose of a matrix. The transpose of a matrix is obtained by interchanging its rows and columns.

Write a Python program to find the sum of positive and negative numbers from a list of five integers.

Write a Python program to find the average of all numbers in a given list and then find the numbers that are above average.

Write a Python program to calculate the mean, variance, and standard deviation of a list of numbers.

The os module in Python provides a way to interact with your computer's operating system. It offers functions for file and directory management, process handling, and environmental variables. It's a crucial tool for working with files and system resources.

The os.path module in Python specifically focuses on file and directory paths. It provides functions for manipulating path components like getting the directory of a file, combining paths, and comparing paths.

This function checks if a given path refers to an existing file. It returns True if it's a file, False otherwise.

This function checks if a given path refers to an existing directory. It returns True if it's a directory, False otherwise.

This function converts a path to its absolute form. An absolute path starts from the root directory of the file system.

This function calculates the relative path between two given paths. It tells you how to get from one directory to another.

This function extracts the directory name from a given path. It gives you the parent folder of a file or directory.

Polymorphism in Python allows objects of different classes to be treated the same way, based on their shared methods. It's like having different shaped keys that can all unlock the same door.