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UGC-NET | UGC NET CS 2016 Aug – II | Question 19

  • Last Updated : 09 Apr, 2018

Consider the following Entity-Relationship (E-R) diagram and three possible relationship sets (I, II and III) for this E-R diagram:
19
I
19 (2)
II
19 (3)
II
19 (4)
If different symbols stand for different values (e.g., t1 is definitely not equal to t2), then which of the above could not be the relationship set for the E-R diagram ?

(A) I only
(B) I and II only
(C) II only
(D) I, II and III


Answer: (A)

Explanation:

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