What are the five key components that comprise a relational database?

Верно ли следующее утверждение:

Five key components that comprise a relational database are tables, rows, columns, records and Internet.

What is the function of keys in a relational database?

Why are relational databases called so?

Even the most elaborate 3-D printers won't be able to manufacture more than 100 components.

Верно ли следующее утверждение:

With FileMaker Pro 11, small businesses can create powerful relational databases.

The computer performs a power-on self-test (POST) to make sure all the major components are functioning properly.

What brands are specifically designed to hook you on buying only their highly priced components to maximize their 40-60% profit margin?

Верно ли следующее утверждение:

Keys, particularly primary keys, act as unique identifiers in relational databases.

Largest and most expensive 3-D printing machines are capable of directly producing complex plastic, and metal and alloy components.

What applications will allow you publish a database to the Web?