Data Types & Structures Reading

What is the purpose of a data type in programming?

• To determine the type of value a variable will hold

• To store data permanently

• To execute SQL queries

• To manipulate strings

Which of the following data types can hold both letters and numbers?

• String

• Integer

• Float

• Boolean

What is the process of changing a variable's data type called?

• Casting

• Concatenation

• Manipulation

• Execution

The length of a string can be determined using the ___ statement.

Files have two modes of operation: read from and ___ to.

A function in programming manipulates data and returns a ___ to the main program.