When are data Validation Rules enforced?

Which objects have built in import wizards?

What is the limit of Look-up Relationships per object?

Universal Containers wants to decrease call volume for the support team by creating a selfservice community that will host published articles with FAQ information and provide a chat with support reps. Which two features meet these requirements?
Choose 2 answers

CORRECT TEXT
Determine if the description is Master/Detail or Lookup: Lookup field on child is always required.