Basic Programming Constructs

What are the three basic programming constructs discussed in the video?

• Selection, Iteration, Recursion

• Sequence, Looping, Branching

• Sequence, Selection, Iteration

• Looping, Branching, Recursion

What does the sequence construct in programming refer to?

• Skipping instructions based on conditions

• Executing instructions one after another

• Repeating instructions multiple times

• Executing instructions based on conditions

What is the primary purpose of the if statement in programming?

• To repeat a block of code multiple times

• To execute a block of code based on a condition

• To define a function

• To declare a variable

In the context of selection constructs, what does the 'else' part of an if statement do?

• Executes only once

• Executes before the condition is checked

• Executes if the condition is false

• Executes if the condition is true

What type of loop is used when the number of iterations is known ahead of time?

• While loop

• Infinite loop

• Do-while loop

• For loop

Which loop is used when the number of iterations is not known in advance?

• For loop

• While loop

• Do-while loop

• Infinite loop

What is a key difference between a while loop and a do-while loop?

• A do-while loop is not supported in Python

• A while loop may not execute at all, but a do-while loop executes at least once

• A do-while loop checks the condition at the beginning

• A while loop checks the condition at the end

What is a nested structure in programming?

• A loop inside another loop

• A statement inside another statement

• All of the above

• A condition inside another condition

In a nested structure, what happens when a for loop is placed inside a while loop?

• The while loop runs only once

• The for loop runs only once

• The for loop runs multiple times within each iteration of the while loop

• The while loop runs multiple times within each iteration of the for loop

Why might you use a nested selection statement?

• To declare multiple variables

• To handle multiple conditions within another condition

• To repeat a block of code multiple times

• To execute multiple conditions in sequence