Author Question: An entity whose primary key depends on the primary key of another entity is called a: A) ... (Read 89 times)

newbem · **on:** Jul 7, 2018

An entity whose primary key depends on the primary key of another entity is called a:

A) referential entity.
B) candidate entity.
C) transitive entity.
D) dependent entity.
E) weak entity.

Question 2

Numerous protocols are used on the Internet and they are organized according to the ________ Protocol architecture.

A) TCP/IP
B) WNIC
C) IEEE 802.3
D) IEEE 802.11

lolol · **Reply #1 on:** Jul 7, 2018

Answer to Question 1

E
Explanation: E) For instance, a STUDENT_COURSE relation would not exist if we didn't have both a STUDENT and COURSE relation. In this case, STUDENT_COURSE is a weak entity.
CL

Answer to Question 2

A