What is a suitable use case for implementing a keyed data page that allows multiple pages per key?

Implementing a keyed data page that allows multiple pages per key is particularly beneficial in situations where the data can vary based on different parameters associated with a single key. A suitable use case for this functionality is a telecommunication provider offering multiple plans based on user location.

In this scenario, the provider may have various service plans that differ depending on the geographical area. For instance, urban and rural locations might offer distinct pricing structures and plan features due to differences in infrastructure or market competition. This allows the system to fetch multiple plans (data pages) for the same key (the user’s location), accommodating the variability in offerings based on that key.

The other scenarios do not illustrate a similar need for variability based on a single key. Retail prices and static rates, as seen in the other options, are consistent across locations and do not require the complexity of managing multiple pages per key. Therefore, they would be better suited to simpler keyed data pages that deliver a single response per key.