MB-820 Practice Online

Question 1

You are tasked with creating a custom page in Business Central to display customer orders placed within the last week. Which of the following statements accurately describes the basic structure of AL code used to achieve this functionality?

A : AL code is primarily composed of functions and procedures, with variables declared within each function.

B : AL code is written in a declarative style, using properties and events to define page elements and their interactions.

C : AL code uses a combination of imperative and declarative approaches, with functions for logic and events for user interaction.

D : AL code is primarily event-driven, with functions triggered by specific user actions or system events.

Answer: C

Question 2

You're working on a Dynamics 365 Business Central extension that includes a new page with sensitive data. You want to ensure only specific users can access this page, even if they have permission sets granting access through entitlements.

How can you achieve this override and restrict access based on your specific requirements? (Choose one)

A : Modify the existing entitlements directly within the extension code, removing access for specific users or groups.

B : Assign a new permission set to the sensitive page that explicitly denies access to all users, overriding any entitlements.

C : Implement custom code within the page to check user permissions and prevent access for unauthorized users based on your custom logic.

D : Utilize the "Inherent Permissions" feature within Business Central to define specific user roles who can access the page, overriding any conflicting permissions from entitlements.

Answer: C

Question 3

You're developing a custom API in Business Central that experiences performance bottlenecks during peak usage periods. This API fetches large datasets from external sources based on user requests. How can you leverage Read-Scale Out to improve the responsiveness of your API?

A : Implement caching mechanisms within your API code to store frequently accessed data.

B : Configure the Business Central server for Read-Scale Out with multiple secondary servers.

C : Utilize server-side JavaScript (SSJS) for complex data manipulation within the API.

D : Increase the memory allocation of the Business Central server.

Answer: B

Question 4

You have two permission sets in Dynamics 365 Business Central: "Sales Rep" and "Sales Manager." Both grant access to the "Customer" table. The "Sales Rep" permission set includes an entitlement to view all customers, while the "Sales Manager" has an inherent permission to see all customer data.

What happens when a user belongs to both permission sets? (Choose one)

A : The user can only see customers assigned to them based on the "Sales Rep" entitlement.

B : The inherent permission from "Sales Manager" overrides the entitlement, granting the user access to all customers.

C : The user has conflicting permissions and Business Central throws an error.

D : Both entitlements work simultaneously, allowing the user to see all customers and perform actions based on both permission sets.

Answer: B

Question 5

A developer needs to install Visual Studio Code and the AL extension for Business Central development on their local machine. They encounter an error during the AL extension installation process.

What is the most likely cause of this error and the recommended troubleshooting step?

A : Insufficient disk space; increase available disk space and retry installation.

B : Incompatible Visual Studio Code version; update to the latest version of VSCode and retry.

C : Missing prerequisite software; install the required dependencies like .NET Framework and retry.

D : Invalid Visual Studio Code extension repository; verify the source and try downloading again.

Answer: C

Name:	Microsoft Certified Dynamics 365 Business Central Developer Associate
Exam Code:	MB-820
Certification:	Microsoft Dynamics 365
Vendor:	Microsoft
Total Questions:	323
Last Updated:	Oct 24, 2026

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MB-820 Practice Online