What is the purpose of an event handler method in Dynamics 365 Finance and Operations?

To define the user interface for a form

To define the main entry point of a class

To create a new table in the database

To respond to specific events that occur in the application lifecycle

A developer is troubleshooting an issue where a pre-event handler is not firing for a standard method. The method is called from multiple places in the application. What is the most likely cause?

The method does not have a delegate defined for the event.

The method is called from a batch job.

The event handler is in a class extension.

The event handler is not marked as public.

A company has a critical business process that calls a method in a standard class. The method is not a delegate and does not have any event attributes. The developer needs to add logging after the method executes, but the standard class cannot be modified. The developer also needs to ensure that the logging runs for all calls to the method, including those from external integrations. What should the developer do?

Create a class extension and add a new method that wraps the original method, then change all call sites to use the new method.

Use a chain of command (CoC) extension on the method.

Create a derived class that overrides the method and add logging, then use the derived class in all internal call sites.

Use a PostHandlerFor event handler on the method.

Microsoft Certified:Dynamics 365 Finance and Operations Apps Developer Associate

Domain 3Objective 3

Create Classes and Extend AOT Elements MB-500 Practice Questions (Page 5)

Part of the Design and develop AOT elements domain, which accounts for 15–20% of the MB-500 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~6–13 in this domain), expect 2–4 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

5concepts

15–20%of the exam

Questions 21–25

21foundation · easy
What is the purpose of an event handler method in Dynamics 365 Finance and Operations?
Select an answer first
22expert · hard
A developer is troubleshooting an issue where a pre-event handler is not firing for a standard method. The method is called from multiple places in the application. What is the most likely cause?
Select an answer first
23foundation · easy
Which access modifier should be used for a method that should be accessible from any class in the application?
Select an answer first
24expert · medium
A company has a critical business process that calls a method in a standard class. The method is not a delegate and does not have any event attributes. The developer needs to add logging after the method executes, but the standard class cannot be modified. The developer also needs to ensure that the logging runs for all calls to the method, including those from external integrations. What should the developer do?
Select an answer first
25foundation · easy
Which attribute is commonly used on a class to indicate that it is a data contract for serialization?
Select an answer first

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Create Classes and Extend AOT Elements MB-500 Practice Questions (Page 5)

Questions 21–25

What is the purpose of an event handler method in Dynamics 365 Finance and Operations?

A developer is troubleshooting an issue where a pre-event handler is not firing for a standard method. The method is called from multiple places in the application. What is the most likely cause?

Which access modifier should be used for a method that should be accessible from any class in the application?

Which attribute is commonly used on a class to indicate that it is a data contract for serialization?

Keep studying — Design and develop AOT elements