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Devry CIS 321 Week 4 Quiz Latest
- 1.Question : (TCOs 9 and 10) The value that is recorded in an attribute if a user does not specify one is known as the
domain.
key.
default value.
data type.
None of the above
Question 2. Question : (TCOs 9 and 10) Which of the following is a category of entities?
Person
Place
Object
Concept
All of the above
Question 3. Question : (TCOs 9 and 10) Any candidate key that is not selected to become the primary key is called
the entity key.
the concatenated key.
the subsetting key.
the domain key.
the alternate key.
Question 4. Question : (TCOs 9 and 10) The problem analysis phase model that includes only entities and relationships but no attributes
is known as the enterprise data model.
is known as the application data model.
is known as the context data model.
does not exist; all data models must have attributes.
None of the above
Question 5. Question : (TCOs 9 and 10) A code that assigns sequentially generated numbers to entity instances is known as
a serial code.
a sequential code.
an alphabetic code.
a significant position code.
None of the above
Question 6. Question : (TCOs 9 and 10) Fields whose values identify one and only one record in a file are called
foreign keys.
primary keys.
alternative keys.
concatenated keys.
None of the above
Question 7. Question : (TCOs 9 and 10) Which defines the minimum and maximum number of occurrences of one entity that may be related to a single occurrence of the other entity?
Domain
Concatenation
Associative entity
Cardinality
None of the above
Question 8. Question : (TCOs 9 and 10) An entity that inherits its primary key from more than one entity is called a(n)
associative entity.
concatenated entity.
ternary.
many-to-many cardinality.
None of the above
Question 9. Question : (TCOs 9 and 10) When a parent entity contributes its primary key to become part of the primary key of the child entity, the relationship is known as
primary.
associative.
nonidentifying.
identifying.
None of the above
Question 10. Question : (TCOs 9 and 10) Which normal form deals with repeating attributes?
1NF
2NF
3NF
All of the above
None of the above
Question 11. Question : (TCOs 9 and 10) A table in which rows indicate entities (and possible attributes), the columns indicate locations, and the cells indicate the document level of access, including create, read, update, or delete, is known as
an entity relationship table.
a transitive dependency table.
a data-to-location CRUD matrix.
a decision table.
None of the above
Question 12. Question : (TCOs 9 and 10) A Gender field can hold only the values M or F. This is an example of
key integrity.
domain integrity.
referential integrity.
logical integrity.
schema integrity.
Question 13. Question : (TCOs 9 and 10) Students take courses and get grades. A Course can have many Students. A Student can take many Courses. For each course, the student gets a Grade. How would you define the relationship between Student and Course such that it is in 3NF?
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Devry CIS 321 Week 4 Quiz Latest
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