Programming Concepts and Lists

What is a constant in programming?

• A constant is a variable that can be changed at any time.

• A constant is a fixed value that cannot be changed during program execution.

• A constant is a value that can only be used once in a program.

• A constant is a type of function that returns a fixed value.

Which of the following is a variable?

• true

• y

• x

• 5

What is an array?

• An array is a collection of variables without keys.

• An array is a type of function.

• An array is a collection of elements identified by index or key.

• An array is a single element.

How is a list different from an array?

• An array can contain mixed types and is dynamic.

• A list is a type of array that is fixed-size.

• A list can contain mixed types and is dynamic, whereas an array is fixed-size and homogeneous.

• A list is always larger than an array.

What is an accumulator used for in programming?

• An accumulator is used to store user input data.

• An accumulator is used to reset the program's state after execution.

• An accumulator is a type of variable that only holds boolean values.

• An accumulator is used to maintain a cumulative value during iterations or recursive calls.

What does an index represent in a list?

• An index represents the position of an element in a list.

• An index is a type of data structure.

• An index is the value of an element in a list.

• An index indicates the size of a list.

How many elements are in the list: cities = ["New York", "London", "Tokyo", "Sydney"]?

• 6

• 5

• 3

• 4

What is the index of "Tokyo" in the list: cities = ["New York", "London", "Tokyo", "Sydney"]?

• 2

• 4

• 3

• 1

What is the difference between list methods and list functions in Python?

• List functions are only applicable to strings.

• List methods are always faster than list functions.

• List methods are used to modify a list, and functions are used to calculate numbers

• List methods can be used with any data type.

Which of the following is a list method: append() or len()?

• append()

• insert()

• count()

• remove()