Which of the following uses a PKI?
A) S/MIME
B) PGP
C) Both A and B
D) Neither A nor B
Question 2
Which of the following is true of packaged data models?
A) Relationships are connected to the highest-level entity type in an order that makes sense.
B) All subtype/supertype relationships follow the total specialization and disjoint rules.
C) No entities on the many sides of a relationship can be weak.
D) All weak entities are considered strong.
