What does an array store?

Many values of the same data type, accessed by index

What does a record store?

Related values of different types together, like a database row

That entered data is sensible and follows set rules

Typing a password twice and comparing the two (double entry)

A single row holding all the data about one item

A field with a unique value identifying each record

A database stored in a single table

It reduces data duplication and improves consistency

Data or processing spread across several connected computers

A copy of current data kept so it can be restored if the original is lost

Moving old data no longer in regular use to long-term storage

Only the data changed since the last backup

Data is accurate, complete and consistent and not corrupted

Data duplication, wasting space and risking inconsistency

16questions. Pick an answer and you'll see why right away.

Which data type is most suitable for storing a price in pounds and pence?
Which data type stores a value that is either true or false?
What does an array store?
What does a record store?
What does validation check?
Which is an example of verification?
In a database, what is a record?
What is a primary key?
What is a flat-file database?
What is an advantage of a relational database over a flat-file database?
What is a distributed system?
What is a backup?
What is archiving?
What does an incremental backup copy?
What does data integrity mean?
A shop stores each customer's full address on every one of their orders in one table. What problem does this cause?