If a lookup field is optional, what actions can you define for the field if someone deletes a
referenced lookup record? (Select all that apply)
A. Clear the value of this field
B. Delete all records which contain this reference
C. Don't allow deletion of the lookup record that's part of a lookup relationship
D. Delete this record also
Master Detail Relationship can contain a standard object on the detail side.
In a Master-Detail Relationship, ownership and access to the child record are determined by the
Master-Detail Relationship, the parent field on the child record can be optional.
What is the maximum allowed master-detail relationships per object?
In a Lookup relationship, cross-object field updates and roll-up summary fields can be done.