E - R Design Issues Multiple Questions and Answers.




1.The total participation by entities is represented in E-R diagram as?
A. Dashed line
B. Double line
C. Double rectangle
D. Circle

2.Which of the following indicates the maximum number of entities that can be involved in a relationship?
A. Minimum cardinality
B. Maximum cardinality
C. ERD
D. Greater Entity Count

3.In E-R diagram generalization is represented by?
A. Ellipse
B. Dashed ellipse
C. Rectangle
D. Triangle

4.What is a relationship called when it is maintained between two entities?
A. Unary
B. Binary
C. Ternary
D. Quaternary

5.Which of the following is a low level operator?
A. Insert
B. Update
C. Delete
D. Directory

»



Quick Links

GAT Subject



   Computer Science    English    Agriculture    Botany    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC    PPSC    NTS