These two use cases can be implemented by using one or more calculated fields because they involve setting the value of a calculated field based on one or more input fields. For example, the cost of painting a banquet hall can be calculated by multiplying the labor rate, the number of hours, and the area of the hall. The cost of an insurance policy can be calculated by adding the base premium and the selected coverage options. Calculated fields can use functions or custom calculations to express the relationship between fields. Reference: https://academy.pega.com/topic/calculated-values/v1

These answers are correct because they demonstrate the need to configure correspondence, which is a way of communicating with external parties through email, fax, letter, or text message. Correspondence can be configured to send information or documents related to a case to customers, stakeholders, or other parties involved in the case. Reference: https://academy.pega.com/library/87/pega-certified-business-architect-pcba-87v1 (Module 7: Correspondence)

To identify duplicate maintenance requests from the same address, you need to configure the apartment address and the tenant name as basic conditions on the Search duplicate cases step. Basic conditions are fields that must match exactly for cases to be considered duplicates. The request type is not relevant for identifying duplicates, and weighted conditions are used for fields that may have similar but not exact values. Reference: https://docs-previous.pega.com/case-management/87/searching-duplicate-cases

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. Reference: https://academy.pega.com/library/87/pega-certified-business-architect-pcba-87v1 (Module 10: Data Pages)