You need to fetch exchange rates that are updated on a daily basis from a...

it fetches exchange rates that are updated on a daily basis from a web service and makes them available in your application using a data page. A request scope for a data page means that the data page is loaded once per user session and is refreshed when the user logs out and logs back in. This way, the data page can provide the most up-to-date exchange rates for each user session. References: https://academy.pega.com/library/87/pega-certified-business-architect-pcba-87v1 (Module 10: Data Pages)