Which of the following notations signifies that an adviser can be related to many students and that a student can be related to many advisers?
A) 1:N
B) N:M
C) N:1
D) N:N

Question

Quizplus · Accepted Answer

N:M signifies a many-to-many relationship where a student can have many advisers and an adviser can have many students. Option A (1:N) signifies a one-to-many relationship where an adviser can have many students, but a student can only have one adviser. Option C (N:1) signifies a many-to-one relationship where a student can only have one adviser, but an adviser can have many students. Option D (N:N) signifies a bi-directional many-to-many relationship, which is essentially the same as option B.

Which of the Following Notations Signifies That an Adviser Can