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Microsoft MB-820 Sample Question Answers
Question # 1
You are creating an entitlement object in Business Central to enable transactability for AppSource
apps.
You must map the entitlement object to a plan in Partner Center.
You need to select the value of the Type property to use in the entitlement object.
Which value should you use?
A. PerUserServicePlan B. Implicit C. Unlicensed D. Role
Answer: A Explanation: In Business Central, when creating an entitlement object to enable transactability for AppSource apps and mapping it to a plan in Partner Center, the Type property of the entitlement object should be set to PerUserServicePlan (A). The PerUserServicePlan type is used to define an entitlement that is based on a service plan, which is typically how transactability features are managed for apps distributed through AppSource. This type of entitlement allows for the mapping of specific features or capabilities of the app to a service plan in Partner Center, enabling granular control over what users are entitled to use based on their subscription. The other values, such as Implicit (B), Unlicensed (C), and Role (D), are used in different contexts and do not apply to the scenario of mapping an entitlement object to a plan for AppSource app
Question # 2
You are exporting data from Business Central.
You must export the data in a non-fixed length and width in CSV format.
You need to generate an XMLport to export the data in the required format
Which Format property value should you use?
A. XML B. VariableText C. FixedText
Answer: B Explanation: When exporting data from Business Central and the requirement is for the data to be in a non-fixed length and width CSV format, the Format property of the XMLport should be set to VariableText (B). The VariableText format is designed for handling data exports where the fields are separated by a delimiter, such as a comma or tab, which is typical of CSV (Comma-Separated Values) files. This format allows for the flexibility needed when dealing with varying field lengths, as it does not enforce a fixed width for each field, making it ideal for CSV data exports. Setting the Format property to FixedText (C) would enforce a fixed width for each field, which is not suitable for CSV files, while the XML format (A) is used for exporting data in an XML structure, which is different from the CSV format requirements.
Question # 3
A company uses Business Central. The company plans to use the AL object model in Business Central to extend the Base Application. You need to extend the objects. Which two objects can you extend? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
A. Codeunit B. Report C. Query D. API page E. Enum
Answer: B, E
Explanation:
A. Codeunit
Codeunits can be extended in AL to add or modify functionality in Business Central.
B. Report
Reports can also be extended to customize the format or data presented in the reports without
modifying the base report.
Incorrect Options:
C. Query: Queries cannot be extended. You would need to create new queries or modify the existing
ones directly.
D. API page: You cannot extend API pages, but you can create new API pages.
E. Enum: You cannot extend Enums because they are predefined sets of values.
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: BCE
Explanation:
ï‚? B. Include extension translation files with the submission.
AppSource submissions require that the extension be localized to different languages, and including
translation files is part of the requirement.
ï‚? C. Ensure the app file is digitally signed.
Digitally signing the app file is a security requirement for AppSource submissions to ensure the
integrity and authenticity of the app.
ï‚? E. Use data classification on all tables and extension fields.
Microsoft requires that all data, especially personal data, be classified using the data classification
feature to comply with GDPR and other data privacy regulations.
Question # 5
You plan to write unit test functions to test newly developed functionality in an app.
You must create a test codeunit to write the functions.
You need to select the property to use for the test codeunit.
Which property should you use to ensure that the requirements are fulfilled?
A. SubType B. Access C. Description
Answer: A Explanation: When creating a test codeunit in Microsoft Dynamics 365 Business Central to write unit test functions, the SubType property (A) of the codeunit should be set to Test. This property is crucial for defining the codeunit's purpose and behavior within the application. By setting the SubType property to Test, you are indicating that the codeunit contains test functions intended to validate the functionality of other parts of the application, such as customizations or new developments. This distinction ensures that the testing framework within Business Central recognizes the codeunit as a container for test functions, allowing it to execute these functions in a testing context, which can include setting up test data, running the tests, and cleaning up after the tests have completed.
Question # 6
You create a Business Central report.
You need to insert values on the Request page to be saved for the next time the report is run.
What should you do?
A. Set the Transact! on Type property to Update. B. Declare a Savevalues' variable and assign it to true on the OnOpenPage () trigger. C. Set the Use Request Page property to true. D. Set the SaveValues property to true.
Answer: B Explanation: To ensure that the values inserted on the Request page of a Business Central report are saved for the next time the report is run, the SaveValues property (D) should be set to true. This property is available on the Request page of the report and, when set to true, allows the system to remember the values entered by the user, so they do not have to re-enter them each time they run the report. This feature enhances user experience by reducing repetitive data entry and ensuring consistency in report parameters across multiple executions. The other options mentioned, such as setting the Transaction Type property to Update (A) or declaring a Savevalues variable in the OnOpenPage trigger (B), are not directly related to saving user input on a report's Request page.
Question # 7
A company plans to meet new regulatory requirements.
The regulator has issued new tax tiers.
You need to update the base application table by using a table extension.
Which table field property can you change?
A. CalcFormula B. DecimalPlaces C. BlankZero D. AutoFormatType
Answer: C Explanation: When updating the base application table using a table extension in Microsoft Dynamics 365 Business Central, certain properties of table fields can be modified to meet new requirements, such as regulatory changes. The DecimalPlaces property (B) is one such property that can be adjusted in a table extension. This property determines the number of decimal places that are displayed and stored for decimal fields in the table. Adjusting the DecimalPlaces property can be particularly useful when dealing with financial data and tax calculations that require precision to meet new tax tiers set by a regulator. It's important to note that not all properties can be modified in a table extension; for example, the CalcFormula property (A) cannot be changed as it affects how the field's value is calculated, which could have significant implications on the base application's logic
Question # 8
A company is deploying Business Central on-premises.
The company plans to use a single-tenant deployment architecture.
You need to describe how the data is stored and how the Business Central Server is configured.
In which two ways should you describe the single-tenant architecture? Each correct answer presents
a complete solution.
NOTE: Each correct selection is worth one point.
A. Each customer has their own Business Central Server. B. The application and the business data are stored in the same database. C. Multiple customers share a single Business Central Server. D. The application and business data are stored in separate databases. E. Multiple customers share multiple Business Central Server instances.
Answer: A, B Explanation: In a single-tenant deployment architecture of Business Central on-premises, the following characteristics describe how the data is stored and how the Business Central Server is configured: The application and the business data are stored in the same database (B): In a single-tenant architecture, each tenant (which typically corresponds to a single customer) has its own dedicated database. This database contains both the application objects (such as pages, reports, codeunits, etc.) and the business data (such as customer, vendor, and transaction records). This setup ensures that each tenant's data is isolated and can be managed independently. The application and business data are stored in separate databases (D): While (B) is a characteristic of a single-tenant deployment, it's important to clarify that in some configurations, the application objects can be stored in a separate database from the business data. This approach can be used for easier maintenance and upgrades of the application code without affecting the business data. However, each tenant still has its own set of databases, maintaining the single-tenancy model. The other options provided do not accurately describe a single-tenant architecture: Each customer has their own Business Central Server (A): This statement might be misleading. In a single-tenant deployment, while each customer has their own database, they do not necessarily have their own Business Central Server instance. Multiple databases (tenants) can be hosted on a single server instance, although they are not shared across customers. Multiple customers share a single Business Central Server (C) and Multiple customers share multiple Business Central Server instances (E): These options describe a multi-tenant architecture rather than a single-tenant one. In a multi-tenant setup, multiple customers (tenants) can share the same server instance and even the same application database, with data isolation ensured at the application level.
Question # 9
You are developing an app.
You plan to publish the app to Microsoft AppSource.
You need to assign an object range for the app.
Which object range should you use?
A. custom object within the range 50000 to 59999 B. custom object within the range 50000 to 99999 C. divided by countries and use specific a country within the range 100000 to 999999 D. an object range within the range of 7000000 to 74999999 that is requested from Microsoft E. free object within the standard range 1 to 49999
Answer: D Explanation: When developing an app for Microsoft AppSource, it is essential to use an object range that is specifically designated by Microsoft to avoid conflicts with other apps and the base application. The correct object range to use is: An object range within the range of 70000000 to 74999999 that is requested from Microsoft (D): This range is reserved for AppSource apps. Developers need to request this range from Microsoft to ensure that the objects used in their extension do not conflict with those used by other extensions or by the base application. Using this reserved range helps maintain the integrity and compatibility of extensions published on AppSource. It's important to note that the other ranges mentioned (A, B, C, and E) are not suitable for apps intended for AppSource. Ranges 50000 to 59999 and 50000 to 99999 are typically reserved for pertenant customizations or partner solutions, not for distribution on AppSource. The standard range 1 to 49999 is reserved for the base application objects, and using an object range divided by countries (C) is not a standard practice for AppSource apps
Question # 10
You are developing an app that will be published to Microsoft AppSource.
The app requires code analyzers to enforce some rules. You plan to add the analyzers to the
settings.json file.
You need to activate the analyzers for the project.
Which three code analyzers should you activate to develop the app for AppSource? Each correct answer presents part of the solution NOTE: Each correct selection is worth one point
. A. CodeCop B. UlCop C. a custom rule set D. PerTenantExtensionCop E. AppSourceCop
Answer: B, D, E Explanation: When developing an app for Microsoft AppSource, it is crucial to adhere to specific guidelines and standards to ensure compatibility and compliance. The three code analyzers you should activate are: CodeCop (A): This is the default analyzer for AL language extensions. It enforces the AL Coding Guidelines, ensuring that the code follows best practices for readability, maintainability, and performance. It checks for a wide range of issues, from syntax errors to best practice violations, making it essential for any AL development. PerTenantExtensionCop (D): This analyzer is specifically designed for extensions that are intended to be installed for individual tenants. It includes rules that ensure the extension does not interfere with the per-tenant customizations and adheres to the guidelines for extensions that can be safely installed and uninstalled without affecting the underlying application. AppSourceCop (E): This analyzer is tailored for extensions that are intended for publication on Microsoft AppSource. It enforces additional rules that are specific to AppSource submissions, such as checking for the use of reserved object ranges and ensuring that all prerequisite dependencies are correctly declared. This is crucial for ensuring that your app meets all the requirements for listing on AppSource. By activating these three analyzers, developers can ensure their app adheres to the standards required for AppSource, as well as maintain high code quality and compatibility with Business Central
