1 
Quiz About 
Entity Relationship
2 
Question 1 
An entity is 
A. A real physical “thing” 
that is specific to a 
particular database 
management system 
C....
3 
Question 2 
The symbol represents a 
A. A one to one relation 
C. A many to many 
relation 
B. A many to one 
relation ...
4 
Question 3 
The graphic indicates 
A. A student can own 
many cars and a car 
can be owned by 
many students 
C. A car ...
5 
Question 4 
The symbol represents 
A. An entity 
C. An attribute 
B. A record 
D. A relation
6 
Question 5 
An instance is 
A. Any particular entity 
C. An attribute of an 
entity 
B. A particular 
occurrence of an ...
7 
Question 6 
The ER model is meant to 
A. Enable detailed 
descriptions of data 
query processing 
C. Enable low level 
...
8 
Question 7 
This graphic 
A. Indicates that 
many students can 
attend many 
courses 
C. Indicates that there 
is a mis...
Which of the following statements best 
describes the function of an entity relation 
9 
model 
A. An ER model is 
concern...
10 
Key 
• 1) D 
• 2) D 
• 3) B 
• 4) A 
• 5) B 
• 6) D 
• 7) C
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19. quiz

  1. 1. 1 Quiz About Entity Relationship
  2. 2. 2 Question 1 An entity is A. A real physical “thing” that is specific to a particular database management system C. A “thing” which has either a real physical existence (e.g. a car or a student) or a conceptual existence (e.g. a course) B. A real physical “thing” or a conceptual “thing” that is specific to a particular database management system D. Any physical “thing” that exists in the real world
  3. 3. 3 Question 2 The symbol represents a A. A one to one relation C. A many to many relation B. A many to one relation D. A one to many relation
  4. 4. 4 Question 3 The graphic indicates A. A student can own many cars and a car can be owned by many students C. A car can be owned by many students B. That a student can own 0,1 or more cars D. A student cannot own a car
  5. 5. 5 Question 4 The symbol represents A. An entity C. An attribute B. A record D. A relation
  6. 6. 6 Question 5 An instance is A. Any particular entity C. An attribute of an entity B. A particular occurrence of an entity (e.g. Tom is an instance of the entity STUDENT) D. A special type of relation
  7. 7. 7 Question 6 The ER model is meant to A. Enable detailed descriptions of data query processing C. Enable low level descriptions of data B. Replace relational design D. Be close to a users perception of the data
  8. 8. 8 Question 7 This graphic A. Indicates that many students can attend many courses C. Indicates that there is a missing entity B. Indicates that students have to attend more than one course D. Indicates that students attend courses
  9. 9. Which of the following statements best describes the function of an entity relation 9 model A. An ER model is concerned primarily with a logical view of the data and secondly with the physical implementation C. An ER model provides a view of the logic of the data and not the physical implementation B. An ER model is concerned primarily with a physical implementation of the data and secondly with the logical view D. An ER model is entirely concerned with modeling the physical implementation
  10. 10. 10 Key • 1) D • 2) D • 3) B • 4) A • 5) B • 6) D • 7) C

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