Inheritance is used to: - 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? - Two tables, one per entity
What will happen to the ID's aft...
Mendix Advanced Questions with
Complete Solutions
Inheritance is used to: - ✔✔ 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? - ✔✔ Two tables, one per entity
What will happen to the ID's after generalizing the Player and Staff entities by the Person entity? - ✔✔ 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. - ✔✔ - 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? - ✔✔ It allows for better security and property configuration based on purpose.
What is the default value of the attribute DeleteAfterDownload? - ✔✔ false
Where are the file(s) or image(s) stored by default? - ✔✔ On the file server located on the application server
When it is better to place Indexes? - ✔✔ If there are more Read than Write actions.
What happens when you apply an index? - ✔✔ The speed of Read actions will increase.
What is the result of the association in the image below? - ✔✔ A list of ID's in the
Staff object. The app performance is affected by a reference set (both) because: - ✔✔ 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 - ✔✔ B
What type of domain model changes can have an impact on the data in the database? - ✔✔ Type changes and Structural changes
What are the four stages of data conversion? (multiple answers are correct) - ✔✔ -
Deploy and convert
- Clean up model
- Model the conversion
- Extend domain model
Why is it a best practice to redeploy your app after cleaning up the model? - ✔✔ You might be confronted with unexpected and/or complex sync behavior during a next deployment.
What does the function reverse() do? - ✔✔ It changes the direction in which the association is queried.
What is the best naming for a self-reference where the buddy is referenced by an apprentice? - ✔✔ Apprentice_Buddy
What is the correct XPath to retrieve the goals of the buddy of an apprentice? - ✔✔ [SoccerSquad.Goal_Player/SoccerSquad.Player/SoccerSquad.Apprentice_Buddy [reversed()] = '[%CurrentObject%]']
When localize is set to No, the date displayed in the client is based on the: - ✔✔ UTC value
Localizing a DateTime attribute has an effect on: - ✔✔ Client representation
If both the App and User time zones are set, the value of the localized DateTime attribute displayed in the client depends on: - ✔✔ The Client time zone
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