Question

Horizontal scaling approach tends to be cheaper as the number of operations and the size of the data increases

Answer 1

True. yes cluster can run on low specification hardware.

Answer 2

The given statement is true.

Horizontal scaling approach tends to be cheaper as the number of operations and the size of the data increases.

It is because the horizontal scaling in the database world is done on the basis of the partitioning of the data.

In addition to that, each part of data is stored in each note which is not the case in the vertical scaling.