Question 11 :
A derived attribute is an attribute whose values can be calculated from a related relationship.
Question 12 :
A fact is a word or phrase that has a specific meaning for the business.
Question 13 :
A strong entity is an entity whose existence depends on some other entity type.
Question 14 :
Multiple and binary relationships are the same thing.
Question 15 :
No two attributes of the same entity type should have the same name.