Which of the following represents a row in a table?
Answer
an attribute
a characteristic
a field
a record
Question 2
Question
Which of the following defines a relationship in which each occurrence of data in one entityis represented by multiple occurrences of the data in the other entity?
Answer
one-to-one
one-to-many
many-to-many
none of the above
Question 3
Question
An entity is represented in an E-R model as a(n)
Answer
arrow
crow's foot
dashed line
none of the above
Question 4
Question
Which of the following is not an E-R model relationship?
Answer
some-to-many
one-to-one
one-to-many
many-to-many
Question 5
Question
Which of the following symbols represents a many-to-many relationship in an E-R model?