The attribute AGE is calculated from DATE_OF_BIRTH. The attribute AGE is…….
a) single value
b) multi value
c) composite
d) derived
Which of the following is used to represent not applicable condition?
a) NA
b) 0
c) NULL
d) none of these
Which of the following can be multi-valued attribute?
a) phone number
b) name
c) date-of-birth
d) none of these
Which of the following attribute the relation between the entities the type and condition of relation specified?
a) deceptive
b) derived
c) recursive
d) relative
Which of the following entity does exist independently?
a) strong entity
b) weak entity
c) derived entity
d) multi-value entity
Which of the following entity does exist dependently?
a) strong entity
b) weak entity
c) derived entity
d) multi-value entity
