Problem-solving and Program Design Concepts

What is an algorithm?

• A series of random steps to solve a problem

• A step-by-step procedure to solve a problem

• A list of all data types in programming

• A type of data used to store numbers

What is pseudocode?

• A programming language used to write algorithms

• A detailed flowchart

• A simplified, informal way of representing an algorithm

• A method to debug programs

Which of the following is an example of a char data type?

• Hello World

• 3.14

• A

• True

Which data type would you use to store the number 3.14?

• char

• string

• float

• boolean

What is the main difference between a variable and a constant?

• A variable cannot be changed after initialization, while a constant can.

• A constant can be changed, but a variable cannot.

• A variable can store only text, while a constant can store any data type.

• A variable can be changed, while a constant cannot.

Which of the following is a valid example of a string data type?

• 3.14

• 'A'

• "Grade 11"

• True

What type of data does the boolean data type represent?

• Numeric values

• Decimal numbers

• True or False values

• Characters and letters

What does the double data type represent?

• A decimal number with a higher precision than float

• A character

• A sequence of characters

• A boolean value

Which of the following statements is TRUE about the boolean data type?

• It can hold any numeric value.

• It can only store two values: True or False.

• It is used to store a sequence of characters.

• It is used to store decimal numbers.

Which of the following data types is used to represent a single character like 'A' or '9'?

• string

• char

• float

• integer