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Author Question: An entity whose primary key depends on the primary key of another entity is called a: A) ... (Read 108 times)

newbem

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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


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lolol

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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


newbem

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Reply 2 on: Jul 7, 2018
Gracias!

mohan

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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