1.2.1 - Programming Data Types

A programmer is defining variables in a new software project. They want to use a data type that is not recognized by the programming language. Which of the following options is NOT a valid data type?

• Int

• Char

• Bool

• Loc

A developer is creating a database for customer information. They need to store names like "Joseph." What data type should they use?

• String

• Loc

• Byte

• DateTime

A data scientist is calculating average sales figures, which include decimal values. What data type should they use to store these values?

• Loc

• Int

• Float

• Boole

A programmer is creating a function to check whether a user is logged in (True or False). What is the appropriate data type for this value?

• T/F

• Boolean

• Loc

• Binary

A software engineer needs to store a collection of customer IDs of the same type in one variable. What type of data structure should they use?

• A collection of characters

• A positive or negative whole number

• A container used to store items of the same type

• A geometric figure with an initial point, going off in one direction indefinitely

An accountant is designing a financial application that will store users' bank account balances, which may include decimal values. What data type would best suit this requirement?

• Int

• Float

• String

• Boolean

A programmer is developing a registration form that asks for a user's age in years. What data type would best store this information?

• Int

• Float

• String

• Boolean

A smart home developer is working on a feature to monitor the status of a light switch (on or off). What data type should be used to represent this state?

• Int

• Float

• String

• Boolean

A social media platform requires users to create unique usernames. What data type would be most suitable to store these usernames?

• Int

• Float

• String

• Boolean