Mendix Advanced Certificated Exam || Most Recent Exam
2026-2027 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Guaranteed Success!! | Newest Exam | Just
Released!!
Which operation can be used to select a specific set of rows in
a table?
Elimination
Projection
Set operation
Selection - ANSWER -Selection
The Set Union operation combines two lists into one that
contains:
All elements that exist in both lists.
All elements from both lists.
All elements from both lists without duplicates.
All elements that appear in only one of the two lists. - ANSWER
-All elements from both lists without duplicates.
What operation combines the data from two different entities
into one table?
Projection
,Set
difference
Set union
Cartesian product - ANSWER -Cartesian
product
What does the Projection operation do?
It allows you to select attributes for all objects.
It allows you to add two lists into one.
It allows you to select objects from
an entity.
It allows you to project an entity onto a
data view.
Submit Answers - ANSWER -It allows you to select attributes
for all objects.
What can you use a constraint function for?
To select objects based on enumerations.
To filter on strings and dates in XPath queries.
To use Java in your XPath queries.
To call a microflow into your XPath. - ANSWER -To filter on
strings and dates in XPath queries.
Which of the queries below can be used to filter on dates
two weeks in the
past?
[%BeginOfCurrentDay%] - 2 *
[%WeekLength%]
,[%CurrentDay%] - 2 +
[%WeekLength%]
[%CurrentDay%] - 2 *
[%WeekLength%]
[%BeginOfCurrentDay%] - 2 + [%WeekLength%] -
ANSWER -
[%BeginOfCurrentDay%] - 2 *
[%WeekLength%]
One of your XPath queries that use the contains() function is
not performing very well. What is the most likely root cause?
You are using the function on an attribute that is not a string.
You have not implemented a separate XPath query for all the
languages that your app is using.
You have implemented a custom function in JavaScript.
You are using the function on a string that is set to 'unlimited'.
Submit Answers - ANSWER -You are using the function on a
string that is set to 'unlimited'.
Submit Answers
When using the OR operator:
You can omit the word 'or' and instead enter two separate
XPath statements, each with its own set of [].
You must enclose the statement following the 'or' in ().
Simply place the word 'or' between two XPath statements.
'or' must be the first word in the XPath expression. - ANSWER -
Simply place the word 'or' between two XPath statements.
The not() function:
, Generates a slow query.
Generates the same query as the != operator.
Can only be used on boolean attributes.
Cannot be used when you use the OR operator. - ANSWER -
Generates a slow query.
Which statement best describes how you would retrieve all
related objects in the most optimal way?
Mendix will optimize your XPath expressions at runtime.
When comparing to a related entity, it is enough to stop at the
association to get the most optimal query.
When you use an object in your XPath, you need to compare it
to an entity directly like this:
[Sales.Customer_Account/Administration.Account =
$currentUser] to get the most optimal query.
You can only compare an object to the id attribute of an entity
of the same type to get the most optimal query. - 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?
You should only apply indexes on boolean attributes.
You should always apply indexes on all your attributes; that
makes your app faster.
You should apply indexes on attributes that are used in
searches when the performance of your app is not up to par.
Mendix will apply indexes where needed, you don't need to
worry about that. - ANSWER -You should apply indexes on
2026-2027 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded
A+ | Guaranteed Success!! | Newest Exam | Just
Released!!
Which operation can be used to select a specific set of rows in
a table?
Elimination
Projection
Set operation
Selection - ANSWER -Selection
The Set Union operation combines two lists into one that
contains:
All elements that exist in both lists.
All elements from both lists.
All elements from both lists without duplicates.
All elements that appear in only one of the two lists. - ANSWER
-All elements from both lists without duplicates.
What operation combines the data from two different entities
into one table?
Projection
,Set
difference
Set union
Cartesian product - ANSWER -Cartesian
product
What does the Projection operation do?
It allows you to select attributes for all objects.
It allows you to add two lists into one.
It allows you to select objects from
an entity.
It allows you to project an entity onto a
data view.
Submit Answers - ANSWER -It allows you to select attributes
for all objects.
What can you use a constraint function for?
To select objects based on enumerations.
To filter on strings and dates in XPath queries.
To use Java in your XPath queries.
To call a microflow into your XPath. - ANSWER -To filter on
strings and dates in XPath queries.
Which of the queries below can be used to filter on dates
two weeks in the
past?
[%BeginOfCurrentDay%] - 2 *
[%WeekLength%]
,[%CurrentDay%] - 2 +
[%WeekLength%]
[%CurrentDay%] - 2 *
[%WeekLength%]
[%BeginOfCurrentDay%] - 2 + [%WeekLength%] -
ANSWER -
[%BeginOfCurrentDay%] - 2 *
[%WeekLength%]
One of your XPath queries that use the contains() function is
not performing very well. What is the most likely root cause?
You are using the function on an attribute that is not a string.
You have not implemented a separate XPath query for all the
languages that your app is using.
You have implemented a custom function in JavaScript.
You are using the function on a string that is set to 'unlimited'.
Submit Answers - ANSWER -You are using the function on a
string that is set to 'unlimited'.
Submit Answers
When using the OR operator:
You can omit the word 'or' and instead enter two separate
XPath statements, each with its own set of [].
You must enclose the statement following the 'or' in ().
Simply place the word 'or' between two XPath statements.
'or' must be the first word in the XPath expression. - ANSWER -
Simply place the word 'or' between two XPath statements.
The not() function:
, Generates a slow query.
Generates the same query as the != operator.
Can only be used on boolean attributes.
Cannot be used when you use the OR operator. - ANSWER -
Generates a slow query.
Which statement best describes how you would retrieve all
related objects in the most optimal way?
Mendix will optimize your XPath expressions at runtime.
When comparing to a related entity, it is enough to stop at the
association to get the most optimal query.
When you use an object in your XPath, you need to compare it
to an entity directly like this:
[Sales.Customer_Account/Administration.Account =
$currentUser] to get the most optimal query.
You can only compare an object to the id attribute of an entity
of the same type to get the most optimal query. - 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?
You should only apply indexes on boolean attributes.
You should always apply indexes on all your attributes; that
makes your app faster.
You should apply indexes on attributes that are used in
searches when the performance of your app is not up to par.
Mendix will apply indexes where needed, you don't need to
worry about that. - ANSWER -You should apply indexes on
