Data Types and Fields Quiz 3

What is a data type?

• A data type is a function that manipulates data.

• A data type is a specific value that can be assigned to a variable.

• A data type is a classification of data that determines the type of values that can be stored and the operations that can be performed on it.

• A data type is a programming language.

What is a field?

• A field is a term used in physics to describe a region of space with a measurable quantity.

• A field is a data structure used to store a single piece of data within a record or a data structure.

• A field is a type of grassy area used for sports.

• A field is a mathematical concept used in calculus.

What is a record?

• A record is a type of musical album.

• A record is a written account of an event or occurrence.

• A record is a device used to play vinyl records.

• A record is a collection of related data items treated as a single unit.

What is a primary key?

• A primary key is used to sort the records in a database table.

• A primary key is a field that can have multiple values for a single record.

• A primary key is a foreign key that references another table.

• A primary key is a unique identifier for a record in a database table.

Which term refers to the different categories of data that can be stored in a variable?

• data types

• data values

• data formats

• data structures

Which term refers to a specific piece of data within a record?

• attribute

• element

• variable

• field

Which term refers to a collection of related data items?

• spreadsheet

• folder

• database

• document

Which term refers to a unique identifier for each record in a database table?

• index

• primary key

• secondary key

• foreign key

What are some examples of data types?

• list

• character

• double

• integer, float, string, boolean, array

Why is a primary key important in a database?

• A primary key is important in a database because it allows for easy data manipulation.

• A primary key is important in a database because it uniquely identifies each record in a table.

• A primary key is important in a database because it ensures data integrity.

• A primary key is important in a database because it allows for faster data retrieval.