The la<span>yer of the osi reference model that hilda is currently working on is: presentation
On Osi reference model, the presentation layer is created </span><span>to take care of the semantics and syntax of the information exchanged between two systems. The presentation layer will make sure that the receiver of the information will understand the data that being given.</span>
Answer:
a) We know that atleast one or more author writes a book.
Symbol to indicate one or more is (B)
So the correct option is B
b) We know that zero to multiple books are written by any author.
Symbol to indicate zero or more is (A)
So the correct option is A
c) The fourth option is correct if we replace by many to many relationship and generate a new entity.
So the relationship betweem author and contract is one to many. So we know that there is atleast one author that represent in symbol d and books has atleast 0 that represent in symbol c.
So Fourth Option is correct d at blue side and c at red side.
d) There are two forirgn keys in table Contract one is from AuthorId and other is ISBN.
So correcct option is C
I disagree because when kids are home alone, and you think they are studying they might not be and they will be playing games on the computer.
Answer:
kamusta Bagong user Ako dito = hello New user I'm here