How can a database be scaled horizontally?
A) A database can be scaled horizontally by removing capacity from the existing machine.
B) A database can be scaled horizontally by consolidating the database onto a single machine.
C) A database can be scaled horizontally by adding more capacity to the existing machine.
D) A database can be scaled horizontally by spreading the database across multiple machines that all work together to manage the database.

Question

Quizplus · Accepted Answer

Horizontal scaling, also known as scaling out, involves spreading the database load across multiple servers or machines to manage the database collectively, rather than increasing the capacity of a single server.

How Can a Database Be Scaled Horizontally