Section 7
(Answer all questions in this section)

  1. A relationship can be both recursive and hierachal at the same time. True or False?

True

  False 



2. In this simple diagram, what comprises the unique identifier for the student class entity?
  
student id and class id

student id, class id and course id

course id

  student id and course id 



  3. A recursive rationship should not be part of a UID. True or False?

  True 

False



  4. Which of the following would be a good Unique Identifier for its Entity? (Choose Two)

(Choose all correct answers)

  Identification Number for Person 

  Birthdate for Baby Which Includes Hour, Minute, and Seconds

Order date for Order

Vehicle Type Number for Car