These are Django Features and Libraries Week 6 Answers Coursera Quiz
Many to Many
Q1. A one-to-many relationship in a data model involved two database tables. How many tables are involved in representing a many-to-many relationship?
5
1
2
4
3
Answer: 3
Q2. If you were looking at a link in a data model diagram, which of these would represent a many-to-many relationship?
0 — 0
1 — 1
2 — 2
1 — 0..*
0..* — 1..*
Answer: 0..* — 1..*
These are Django Features and Libraries Week 6 Answers Coursera Quiz
Q3. In Django, what type of field is used to represent a many-to-many relationship?
models.ThroughKey
models.ForeignKey
models.ManyToManyField
models.ManyToManyRelationship
models.IntField
Answer: models.ManyToManyField
Q4. Which of the following is NOT a common name for the additional table needed to represent a many-to-many relationship between two tables?
Junction Table
Association Table
Through Table
Join Table
Bridge Table
Lookup table
Answer: Lookup table
These are Django Features and Libraries Week 6 Answers Coursera Quiz
Q5. In models.py when you want to explicitly model a Junction table, what is the attribute in the two lined table models used to indicate which Junction table to use to connect the two tables?
junction
join_through
join
through
on_delete
Answer: through
Q6. What kind of model fields will be found in every Junction table?
models.JunctionFields
models.OutboundKeys
models.ManyToManyField
models.CharField
models.ForeignKey
Answer: models.ForeignKey
These are Django Features and Libraries Week 6 Answers Coursera Quiz
Q7. If you have a many-to-many relationship between books and authors and you are inserting a new author for a book, which of the following orders of operations will work?
insert the connection, insert the book, insert the author
insert the connection, insert the author, insert the book
insert the book, insert the author, insert the connection
insert the book, insert the connection, insert the author
