Mendix Advanced// Mendix
Advanced question with
answers latest update 2023
Inheritance is used to: - ANSWER-Inherit the structure and behavior of an
entity, so that all specializations can be used individually within the same
process.
What is the result of generalizing the Player entity by the Person entity? -
ANSWER-Two tables, one per entity
What will happen to the ID's after generalizing the Player and Staff entities
by the Person entity? - ANSWER-The ID's of Player and Staff will keep
their own set and sequence and will equal the ID in the Person table.
Which statement is correct?:
- A 1-1 association and inheritance are both an IS type of relation.
- A 1-1 association is an IS and inheritance is an HAS type of relation.
- A 1-1 association is a HAS and inheritance is an IS type of relation.
- A 1-1 association and inheritance are both an HAS type of relation. -
ANSWER-- A 1-1 association is a HAS and inheritance is an IS type of
relation.
Why is it a best practice to create a specialization of the FileDocument and
Image entities? - ANSWER-It allows for better security and property
configuration based on purpose.
What is the default value of the attribute DeleteAfterDownload? -
ANSWER-false
Where are the file(s) or image(s) stored by default? - ANSWER-On the file
server located on the application server
When it is better to place Indexes? - ANSWER-If there are more Read than
Write actions.
What happens when you apply an index? - ANSWER-The speed of Read
actions will increase.
What is the result of the association in the image below? - ANSWER-A list
of ID's in the Staff object.
The app performance is affected by a reference set (both) because: -
ANSWER-Both entities needs to be joined with the reference table and
data transfer increases.
Adrian wants to select a staff member for a team. Which domain model
would be suitable?
A: Staff * -> * Team
B: Staff * <- * Team - ANSWER-B
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