In this section, we are going to force the consumers of our questions endpoint to specify the page of data when executing the request with the search query parameter. So, we'll only be returning a portion of the data rather than all of it.

Paging helps with performance and scalability in the following ways:

• The number of the page read I/Os is reduced when SQL Server grabs the data.
• The amount of data that's transferred from the database server to the web server is reduced.
• The amount of memory that's used to store the data on the web server in our model is reduced.
• The amount of data that's transferred from the web server to the client is reduced.

This all adds up to a potentially significant positive impact—particularly for large collections of data.