Section 1
1. A unique identifier can only be made up of one attribute. True or False?Mark for Review
(1) Points
True
False (*)
2. People are not born with "numbers", but a lot of systems assign student numbers, customer IDs, etc.ﾠA shoe has a color, a size, a style, but may not have a descriptive "number". So, to be able to uniquely and efficiently identify one instance of the entity SHOE, a/an ______________ UID can be created.Mark for Review
(1) Points
artificial (*)
unrealistic
structured
identification
3. A UID can be made up from the following: (Choose Two)Mark for Review
(1) Points
(Choose all correct answers)
Attributes (*)
Entities
Relationships (*)
Synonyms
4. An entity can only have one UID. True or False?Mark for Review
(1) Points
True
False (*)
