A developer creates a derived table and wants to add persistence to it. Because the table is not used on a frequent basis, the developer wants the table to be cached for 12 hours, but only when a user has queried it.
Which persistence parameter should be added to the derived table's definition in order to satisfy this use case?

A developer is building an e-commerce Explore with the following datasets: orders and users. The business user needs to be able to answer questions about sellers and buyers within the same Explore. Each order in the orders table reports a buyer and seller ID. The users table has the detailed information about the individual buyer and seller.
How should the Explore be defined to meet this requirement?
A)

B)

C)

D)

A user needs to create a report that shows a count of all orders and of orders over $100.
Which solution should the developer implement to meet these requirements?

A developer wants to create a new Explore based on the order_items view. The developer creates an Explore in the ecommerce model file with the following definition:
explore: order_items {}
After saving and validations, the developer receives this LookML validator error:
Inaccessible view "inventory_items", "inventory_items" is not accessible in explore" "order_items". Check for typos and missing joins in explore "order_items".
What caused this error to appear?

A LookML developer creates an Explore that joins two views. The base view has information about users' interactions with the support team. The joined view contains data about the users. The support team using this Explore feels overwhelmed by the amount of data this Explore shows them and decides to just look at open tickets.
What should the developer add to the Explore in the model to achieve these requirements?