Django Features and Libraries | Week 6

Course Name: Django for Everybody

Sub-course: Django Features and Libraries

Course Link: Django for Everybody

Sub-course Link: Django Features and Libraries

These are Django Features and Libraries Week 6 Answers Coursera Quiz

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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

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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..*

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These are Django Features and Libraries Week 6 Answers Coursera Quiz

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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

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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

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These are Django Features and Libraries Week 6 Answers Coursera Quiz

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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

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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

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These are Django Features and Libraries Week 6 Answers Coursera Quiz

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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

Answer: insert the book, insert the author, insert the connection

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Q8. You should never have any fields other than keys in a Junction table.

• True
• False

Answer: False

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These are Django Features and Libraries Week 6 Answers Coursera Quiz

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