MENDIX ADVANCED QUESTIONS EXAM 2023-2024 ACTUAL EXAM 130 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES||ALREADY GRADED A

MENDIX ADVANCED QUESTIONS EXAM 2023-2024 ACTUAL

EXAM 130 QUESTIONS AND CORRECT DETAILED ANSWERS

WITH RATIONALES||ALREADY GRADED A

Where are entity access restrictions applied? - ANSWER- On relevant

database retrieves.

Which of the following best describes how the Mendix platform applies

entity access? - ANSWER- The platform only grants the access

explicitly defined in the entity access rules.

In this domain model, assume that House is a specialization of Building:

- ANSWER- Admin users will be able to read the SquareFoot attribute

in data views for Buildings and read and write in data views for Houses.

Referring to the same domain model as was used in question #2, if we

create a page with a data grid containing Houses and autogenerate a

House_NewEdit page, which of the following statements is FALSE for

an Admin user? - ANSWER- Admin users will not see the SquareFoot

attribute in the Edit page.

Why is it more secure to add security rules on the entity level? -

ANSWER- Entity level restrictions are applied at the database level and

are thus automatically applied throughout the application.

For the following questions, assume there is an app with three user roles:

Administrator, Teacher, and Student. Administrators are granted the

ability to manage all user roles, and Teachers can manage users with the

Student role. Which of the following statements is false? - ANSWERAdministrators and teachers can create teacher accounts.

Let's say you want Teachers to be able to manage accounts for Students,

but only the Students who are in their class. So, you grant Teachers the

ability to manage users with the Student role in the app security menu.

Will this be sufficient? - ANSWER- No, because teachers will have the

ability to edit the accounts of any Student, not just their own.

What is a benefit of assigning only one user role to each user? -

ANSWER- Simplicity

Which operation can be used to select a specific set of rows in a table? -

ANSWER- Selection

The Set Union operation combines two lists into one that contains: -

ANSWER- one version of the objects from both lists

What operation combines the data from two different entities into one

table? - ANSWER- Cartesian product

What does the Projection operation do? - ANSWER- It allows you to

select attributes for all objects.

Re-take Knowledge CheckNext

What can you use a constrain function for? - ANSWER- To filter on

strings and dates in XPath queries.

Which of the queries below can be used to filter on dates two weekso in

the past? - ANSWER- [?ginOfCurrentDay%] - 2 *

[%WeekLength%]

One of your XPath queries that use the contains() function is not

performing very well. What is the most likely root cause? - ANSWERYou are using the function on a string that is set to 'unlimited'.

When using the 'and' operator: - ANSWER- The 'and' operator will give

a different result based on how you write the XPath query.

The not() function: - ANSWER- Generates a slow query.

Which statement best describes how you would retrieve all related

objects in the most optimal way? - ANSWER- When comparing to a

related entity, it is enough to stop at the association to get the most

optimal query.

When should you apply an index? - ANSWER- You should apply

indexes on attributes that are used in searches when the performance of

your app is not up to par.

What is normalization? - ANSWER- The removal of duplicate data from

your domain model.