Free Microsoft MB-820 Exam Questions

Question 1

You want to configure telemetry to track the performance of your extension's user interface (UI) elements. Which telemetry features can you leverage for this purpose?

A : Application Insights custom metrics and page views.

B : Business Central built-in performance counters.

C : Azure Monitor Application Insights custom traces.

D : Microsoft Power BI integration with Business Central telemetry.

Answer: A

Question 2

You have developed several test procedures to verify the custom discount logic in your extension. However, one of the tests fails without a clear error message.

Objective: Identify the source of the test failure using debugging techniques.

Which of the following approaches is the most efficient for debugging the failing test procedure in Business Central?

A : Review the test code for syntax errors or logical mistakes.

B : Print intermediate values within the test procedure to analyze data flow.

C : Set a breakpoint at the beginning of the test procedure to step through the code line by line.

D : Use the "Test Log Viewer" to analyze the test execution history and identify any failed assertions.

Answer: C

Question 3

A company has extended Business Central.You plan to submit the extension to AppSource.You need to ensure that an application meets the technical requirements before submitting it for validation.Which three actions should you perform? Each correct answer presents a complete solution.NOTE: Each correct selection is worth one point.

A : Use the OnBeforeCompanyOpen event for improved sign in time

B : Include extension translation files with the submission.

C : Ensure the app file is digitally signed

D : Code all date fields in the mm-dd-yyyy format

E : Use data classification on all tables and extension fields.

Answer: B,C,E

Question 4

A company has extended Business Central.You plan to submit the extension to AppSource.You need to ensure that an application meets the technical requirements before submitting it for validation.Which three actions should you perform? Each correct answer presents a complete solution.NOTE: Each correct selection is worth one point.

A : Use the OnBeforeCompanyOpen event for improved sign in time

B : Include extension translation files with the submission.

C : Ensure the app file is digitally signed

D : Code all date fields in the mm-dd-yyyy format

E : Use data classification on all tables and extension fields.

Answer: B,C,E

Question 5

You're developing a Dynamics 365 Business Central extension for a retail chain that processes high volumes of sales orders across multiple stores. The extension needs to efficiently handle order creation, validation, and fulfillment.

You're designing the "Sales Order" entity to handle order processing. Which design pattern BEST ensures data integrity and efficient order validation?

Options:

A : Use a single table for "Sales Order" with all related data (customer, items, etc.) embedded.

B : Implement separate tables for "Sales Order", "Customer", and "Item" with direct links between them.

C : Create a "Sales Order" table with foreign keys to related tables, but perform validation logic within the "Sales Order" table code.

D : Design "Sales Order" and related tables with foreign keys, and implement validation logic in separate event handlers triggered by data changes.

Answer: D