Explanation
A list of values (LOV) is a definition that provides a set of display values and return values for a page item or a report column. A LOV can be created at the application level as a shared component or at the page level as a local component. There are three types of LOVs that you can create on a page:
Static LOV: A static LOV is based on a fixed list of display values and return values that you specify when you create the LOV. A static LOV does not change unless you edit it manually.
Cascading LOV: A cascading LOV is based on another parent LOV that determines the values of the child LOV. A cascading LOV changes dynamically depending on the selection made in the parent LOV.
Dynamic LOV: A dynamic LOV is based on a SQL query that returns display values and return values from the database. A dynamic LOV changes dynamically depending on the data in the database.

Explanation
A cascading LOV is a type of list of values (LOV) that depends on another parent LOV to determine its values. For example, if there are two select lists on a page, one for DEPARTMENT and one for EMPLOYEES, you can create a cascading LOV for EMPLOYEES that only shows the employees who belong to the selected department in the DEPARTMENT select list. To create a cascading LOV, you need to specify the parent item name and use bind variables in the SQL query for the child item.

Explanation
d event under the Drag and Drop PL/SQL Code attribute of the Calendar component. This attribute allows you to write PL/SQL code to update the event row in the database after the user drags and drops an event on the calendar. To reference the ID, the new start date, and the new end date of the dragged event, you can use these bind variables: :APEX.PK_VALUE, :APEX.NEW_START_DATE and :APEX.NEW_END_DATE. These variables are automatically populated by APEX when the user performs a drag and drop action on the calendar. For example, you can write something like this:
UPDATE events
SET start_date = :APEX.NEW_START_DATE,
end_date = :APEX.NEW_END_DATE
WHERE id = :APEX.PK_VALUE;

Explanation
A faceted search page is a type of page that allows end users to filter data by applying one or more facets. A facet is a set of filters based on a column or expression. You can create a faceted search page by using the Create Page Wizard or by adding a faceted search region to an existing page. If you create a faceted search page based on a table, view, or SQL query, the facets are auto-discovered by analyzing the data source. The Search Results region can be displayed as a Classic Report or Cards, but not as an interactive report. You can also customize the appearance and behavior of the facets and the search results by using various attributes.
Verified References: [Creating Faceted Search Pages - Oracle Help Center], [Faceted Search Attributes - Oracle Help Center]