Bissoy.com
Doctors Medicines MCQs Q&A

Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates _________ cardinality

Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates _________ cardinality Correct Answer One to one

This indicates that an instructor may advise at most one student, and a student may have at most one advisor.

Related Questions

In an Entity-Relationship (ER) model, suppose ? is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in ? and that the cardinality of E1 is greater than the cardinality of E2. Which one of the following is true about ??
In a class text, to the question, find out 23% of 200, two students answered in following ways:  Student A: 23% of 200 = 23% of (100 + 100) = 23 + 23 = (20 + 20) + (3 + 3) = 46  Student B: 23% of 200 = 200 × \(\frac{23}{100}\) = 2 × 23 = 46 Which of the following statements is the most appropriate in the given context? 1. Since student B has used the standard algorithm, teacher gives full marks to student B and zero to student A 2. Teacher gives full marks to both the students as they have attempted the question using their own algorithms. Both formal and informal algorithms are integral to solving problems in mathematics. 3. Teacher gives zero marks to student A and directs him to redo the question using the algorithm taught in the Class 4. Teacher accepts both the responses but directed student A to refrain from using informal algorithm 
There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
If cardinality of (A U B) = cardinality of A+ cardinality of B. This means ____________
If A indicates >; B indicates <; C indicates = ; D indicates + ; E indicates -; F indicates × ; G indicates /: then which of the following option is true?
If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
Consider the following statements in respect of sets: 1. The union over the intersection of sets is distributive. 2. The complement of the union of two sets is equal to the intersection of their complements. 3. If the difference between the two sets is equal to the empty set, then the two sets must be equal. Which of the above statements are correct?
Study the following information to answer the questions given below: A company visited an Engineering college for placement drive where students of any branch can participate in the drive. But company put some eligibility criteria. 1) Student having no backlogs are eligible to participate in the drive. 2) Student having greater than 9.8 CGPA without any backlogs are eligible for direct interview round. 3) Student must have at least 70 percentage in 10th and 12th. If the 1st and 2nd criteria not fulfilled then, a) If student has 1 or 2 backlog and the result is awaiting but having a CGPA 8.5 then he has to participate in presentation round before the interview round. Sameer a Mechanical student is the topper of the college having 90 percentage in both 10th and 12th. But he is having a 1 backlog in his 4th semester and the result is awaiting. His CGPA is 8.8.
What does a directed line ( → ) from a relationship set to two entity sets mean?
In an examination, a student can choose the order in which two questions (QuesA and QuesB) must be attempted. - If the first question is answered wrong, the student gets zero marks. - If the first question is answered correctly and the second question is not answered correctly, the student gets the marks only for the first question. - If both the questions are answered correctly, the student gets the sum of the marks of the two questions. The following table shows the probability of correctly answering a question and the marks of the question respectively.  question Probability of answering correctly marks QuesA 0.8 10 QuesB 0.5 20 Assuming that the student always wants to maximize her expected marks in the examination, in which order should she attempt the questions and what is the expected marks for that order (assume that the questions are independent)?