A company wants to add a custom validation rule to the Item table to prevent negative inventory levels. The rule should be applied when items are posted. What should the developer do?

Modify the base Item table to add the validation rule.

Use a report to check inventory levels after posting.

Create a new page and add validation logic to the page's OnValidate trigger.

Create a table extension and add a validation trigger on the Item table.

A developer is designing an extension that must override a standard posting routine in the Base Application. The extension also needs to use a permission set that is defined in the System Application. The developer wants to minimize the risk of breaking during upgrades. What should the developer do?

Reference the Base Application only and avoid using the System Application permission set.

Modify the Base Application's posting routine directly and add the permission set to the extension.

Use an event subscriber to the Base Application's posting routine and reference the System Application as a dependency.

Create a new posting routine in the extension and ignore the Base Application's routine.

A partner has created an app and wants to list it on AppSource. They have completed the development and testing. What is the next step in the submission process?

Obtain a code signing certificate and then submit the app for certification.

Send the app package to Microsoft support for manual review.

Create an offer in Partner Center and submit it for validation.

Publish the app to a public repository and wait for Microsoft to review it.

How do the Base App and the System App differ in their roles within Business Central?

The Base App provides business functionality, while the System App provides platform services.

The Base App is a cloud-only component, while the System App is on-premises only.

The Base App is a third-party extension, while the System App is the standard product.

The Base App is for developers, while the System App is for end users.

A developer is new to Business Central and is trying to understand the architecture. They see two apps in the environment: Base Application and System Application. They need to know which one to extend for a new business process. What should they consider?

The System Application contains the business logic, so extend it to add new business processes.

Neither app can be extended; you must create a new app from scratch.

Both apps contain business logic, so extend either one.

The Base Application contains the business logic, so extend it to add new business processes.

Microsoft Certified:Dynamics 365 Business Central Developer Associate

Domain 1Objective 2

Describe Business Central Apps MB-820 Practice Questions (Page 2)

Part of the Describe Business Central domain, which accounts for 10–15% of the MB-820 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~4–10 in this domain), expect 2–5 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

7concepts

10–15%of the exam

Questions 6–10

6application · medium
A company wants to add a custom validation rule to the Item table to prevent negative inventory levels. The rule should be applied when items are posted. What should the developer do?
Select an answer first
7expert · hard
A developer is designing an extension that must override a standard posting routine in the Base Application. The extension also needs to use a permission set that is defined in the System Application. The developer wants to minimize the risk of breaking during upgrades. What should the developer do?
Select an answer first
8application · medium
A partner has created an app and wants to list it on AppSource. They have completed the development and testing. What is the next step in the submission process?
Select an answer first
9foundation · easy
How do the Base App and the System App differ in their roles within Business Central?
Select an answer first
10application · medium
A developer is new to Business Central and is trying to understand the architecture. They see two apps in the environment: Base Application and System Application. They need to know which one to extend for a new business process. What should they consider?
Select an answer first

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