A developer has created an extension and wants to deploy it to a sandbox for testing. The developer uses the AL: Publish command. The command fails with an error that the extension is not compatible with the environment. What is the most likely cause?

The developer does not have permission to publish to the sandbox.

The sandbox environment is not running the latest cumulative update.

The extension's 'application' property does not match the sandbox's base application version.

The extension's 'version' property is lower than the installed version.

A company has an extension that adds a custom field to the Sales Order page. The extension is currently deployed to a production environment. The developer needs to deploy a new version that adds a second custom field. The developer has modified the extension code and built the .app file locally. What is the recommended deployment process?

Use the AL: Publish without upgrade action, then manually sync the extension.

Publish the new .app file and then run the upgrade via the extension management page.

Replace the .app file in the deployment folder and restart the Business Central Server instance.

Unpublish the old extension, then publish and install the new .app file.

A developer needs to modify an existing extension that adds a field to the Customer table. The developer wants to change the field's caption and add a new option to an existing enum. The developer has the extension source code in Visual Studio Code. What should the developer do?

Use the Designer in the web client to change the caption and add the enum value.

Create a new extension that overrides the existing field and enum.

Edit the field's caption property and add the new enum value in the source code, then compile and publish the updated extension.

Delete the extension and recreate it with the changes.

A developer is creating a new extension that will be used in multiple countries. The extension includes a page with a caption and a codeunit that uses a text constant. The developer wants to support both English and German. What should the developer do?

Set the Multilanguage property to true on the extension manifest.

Create separate .xlf files for each language and use the caption and text constant properties with the language codes.

Store the translations in a table and use the Lookup function to retrieve them.

Use the Language property on the page and codeunit to specify the default language.

A developer is setting up a new workstation to develop Business Central extensions. The developer installs Visual Studio Code and the AL Language extension. When creating a new AL project, the developer wants to target a specific Business Central version. What should the developer configure?

The 'target' property in the launch.json file.

The 'platform' property in the app.json file.

The 'version' property in the app.json file.

The 'application' property in the app.json file.

Microsoft Certified:Dynamics 365 Business Central Developer Associate

Domain 2Objective 2

Create, Debug, and Deploy an Extension in Business Central MB-820 Practice Questions (Page 5)

Part of the Install, develop, and deploy for 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 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

7concepts

10–15%of the exam

Questions 21–25

21application · medium
A developer has created an extension and wants to deploy it to a sandbox for testing. The developer uses the AL: Publish command. The command fails with an error that the extension is not compatible with the environment. What is the most likely cause?
Select an answer first
22application · medium
A company has an extension that adds a custom field to the Sales Order page. The extension is currently deployed to a production environment. The developer needs to deploy a new version that adds a second custom field. The developer has modified the extension code and built the .app file locally. What is the recommended deployment process?
Select an answer first
23application · medium
A developer needs to modify an existing extension that adds a field to the Customer table. The developer wants to change the field's caption and add a new option to an existing enum. The developer has the extension source code in Visual Studio Code. What should the developer do?
Select an answer first
24application · medium
A developer is creating a new extension that will be used in multiple countries. The extension includes a page with a caption and a codeunit that uses a text constant. The developer wants to support both English and German. What should the developer do?
Select an answer first
25application · medium
A developer is setting up a new workstation to develop Business Central extensions. The developer installs Visual Studio Code and the AL Language extension. When creating a new AL project, the developer wants to target a specific Business Central version. What should the developer configure?
Select an answer first

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