1:27 PM savstate view usgedu Data Base Manageme.. EPI Antron Johnson Question 15

Question

1:27 PM savstate view usgedu Data Base Manageme.. EPI Antron Johnson Question 15 (3 points) Two entities: ssu Faculty and ssu Course The relationship is Teaches so the participation of ssu Faculty in Teaches is said to be total Chinta Dr. Dorier and Courses) Question 16 (3 points) Two entities: Department Head (or Chair) and ssuDepartment The relationship is Teaches So the participation of Department chair in teaches ssaid to be total and ssupraantment is said to be partial Question 17 (3 points) In A weak entity for example: Employee and Kids If you are the boss of the company and will purohase insurance for vour employees and their kids. be ir your IT staffs designed a relationship between employee and kids and can kids data using kids ID. you are happy select True, unhappy select false Question 18 (3 points) aggonartion allows us to treat relationshe set an true Question 19 (3 points) consider the following entities Entities ssu students and schot we say that ssu student is total the Award miationship O True

Explanation / Answer

i am allowed to do only the first four subparts

please post only four in a single question window

Question 15

Answer

true

reason:

for a person to be a faculty he/she must teach something or some course and if there is a course there must be someone who is teaching it.
thats why the participation is total

Question 16

Answer

false

reason:

it is not necessary that a department head or chair must teach someone something. but if he/she wants they can teach as well.
thats why the participation is partial with teaches

but a department chair or head must beongs to a department but every member which belongs to the department can not be deparment chair, that is why its participation with ssu department is partial

Question 17

Answer

false

i will be happy if i get all the information using employees id instead of kids id as kids is a weak entity which depends on employee.

Question 18

Answer

true

Aggeregation is a process of combining two or more entity set to treat it as a single entity
for example an address entity could be a set of street no,house no,city,state,country,zipcode
etc entities.

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