Introduction to Python

What is the output of the following code: print(5 > 3 and 2 < 4)?

• 2 > 4

• True

• False

• 5 < 3

Explain the difference between 'if', 'if-else', and 'if-elif-else' statements in Python.

• 'if' checks a condition, 'if-else' provides an alternative for false conditions, and 'if-elif-else' allows multiple conditions to be evaluated.

• 'if' is for checking types, 'if-else' is for importing modules, and 'if-elif-else' is for defining classes.

• 'if' and 'if-else' are the same, while 'if-elif-else' is a deprecated feature.

• 'if' is used for loops, 'if-else' is for defining functions, and 'if-elif-else' is for error handling.

What will be the output of this code: x = 10; if x < 5: print('Low'); else: print('High')?

• High

• Low

• Undefined

• Error

What is the purpose of the 'break' statement in a loop?

• To continue the loop indefinitely.

• To exit a loop prematurely.

• To skip the current iteration of the loop.

• To pause the loop for a specified time.

Describe the use of the 'continue' statement in a loop.

• The 'continue' statement skips the current iteration of a loop and continues with the next iteration.

• The 'continue' statement repeats the current iteration of the loop.

• The 'continue' statement pauses the loop for a specified time.

• The 'continue' statement terminates the loop immediately.

What is a Boolean value in Python? Give an example.

• True and False are the two Boolean values in Python.

• On and Off

• Yes and No

• True and Maybe

What will the following code output: for i in range(3): print(i)?

• 1, 2, 3

• 0, 1, 2

• 0 1 2

• -1, 0, 1

Explain the concept of tuple assignment in Python with an example.

• a, b = [1, 2] results in a = 1 and b = 2.

• a, b = (1, 2, 3) results in a = 1 and b = 2.

• a, b = 1, 2 results in a = 1 and b = 2.

• Example: a, b = (1, 2) results in a = 1 and b = 2.

What is operator precedence and how does it affect expressions in Python?

• Operator precedence determines the data types used in expressions.

• Operator precedence affects the evaluation order of operators in expressions, influencing the final result.

• Operator precedence is only relevant for arithmetic operations.

• Operator precedence has no impact on the execution of Python programs.

How do you write a comment in Python? Why are comments important?

• Use '/* comment */' for multi-line comments.

• Comments are not necessary for code clarity.

• Use '//' for comments in Python.

• To write a comment in Python, use '#' for single-line comments or triple quotes for multi-line comments. Comments are important because they help explain the code, making it easier to understand and maintain.