Create Classes and Extend AOT Elements MB-500 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A developer is creating a new class that will be used by multiple external integrations to send data to a third-party service. The class must be accessible from all code in the model, but its methods should not be overridable by other models. Which class declaration should the developer use?

   • Apublic class MyServiceClass
   • Binternal class MyServiceClass
   • Cpublic final class MyServiceClass
   • Dprotected class MyServiceClass
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2. 12expert · medium

   A company has a standard class that is used by multiple external systems. The class has a method that is not a delegate and does not have any event attributes. The developer needs to add custom logic before and after the method executes, without modifying the standard class. The developer also needs to ensure that the custom logic is applied consistently across all callers. What should the developer do?

   • AModify the standard class to add the logic.
   • BUse a PreHandlerFor and PostHandlerFor event handler on the method.
   • CCreate a derived class that overrides the method and add the logic, then change all external systems to use the derived class.
   • DCreate a class extension and use chain of command to wrap the method.
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4. 13foundation · easy

   Which naming convention is used for a class extension in Dynamics 365 Finance and Operations?

   • AExtOriginalClassName
   • BExtension_OriginalClassName
   • COriginalClassNameExt
   • DOriginalClassName_Extension
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5. 14application · medium

   A developer is creating a utility class with a method that should be callable without creating an instance of the class. Which modifier should be used for the method?

   • Aprotected
   • Bpublic
   • Cprivate
   • Dstatic
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6. 15expert · hard

   A developer is creating a class extension that adds a new method to a standard class. The new method needs to access a private field of the original class. What should the developer do?

   • AChange the field to protected in the original class.
   • BAccess the field directly using the field name.
   • CUse reflection to access the private field.
   • DUse a public getter method from the original class if available.
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