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Microsoft MB-820 Bundle

Exam Code: MB-820

Exam Name Microsoft Dynamics 365 Business Central Developer

Certification Provider: Microsoft

Corresponding Certification: Microsoft Certified: Dynamics 365 Business Central Developer Associate

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Microsoft Dynamics 365 Business Central Developer (MB-820) Practice Tests

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Microsoft MB-820 Practice Test 77

Question 760

At fictional Granite Telecom, the Business Central development team is supporting field equipment billing and reviewing object model and application extensibility during an extension maintenance sprint (MB820-3.3-090). The observed development issue is that an XMLport export leaks fields that are not part of the approved customer-facing contract. Which AL development or design response most directly addresses this issue?

  1. Add validation and explicit error handling at the XMLport import boundary.
  2. Normalize supported date parsing with an explicit agreed format and reject ambiguous values.
  3. Remove unneeded nodes and enforce permissions before streaming records.
  4. Define an XMLport schema with the intended parent/child nodes and matching element names.

Explanation

Correct Answer

C:

The most direct corrective response is to remove unneeded nodes and enforce permissions before streaming records. This addresses the specific failure where an XMLport export leaks fields that are not part of the approved customer-facing contract. Acceptance evidence is that the exported file contains only authorized, contractually required fields. Applied here, the relevant facts are: maintenance sprint (MB820-3.3-090). The observed development issue is that an XMLport export leaks fields that are not part of the approved customer-facing contract. The question asks which AL development or design response most directly addresses this issue.

Incorrect Answers

A:

“Add validation and explicit error handling at the XMLport import boundary” concerns the alternative task “add validation and explicit error handling at the XMLport import boundary”, but the stated failure is that an XMLport export leaks fields that are not part of the approved customer-facing contract. The required measure is to remove unneeded nodes and enforce permissions before streaming records.

B:

The proposed “Normalize supported date parsing with an explicit agreed format and reject ambiguous values” tests a different control: normalize supported date parsing with an explicit agreed format and reject ambiguous values. The reported condition is that an XMLport export leaks fields that are not part of the approved customer-facing contract; the more direct action is to remove unneeded nodes and enforce permissions before streaming records.

D:

“Define an XMLport schema with the intended parent/child nodes and matching element names” concerns the separate step “define an XMLport schema with the intended parent/child nodes and matching element names”. The reported issue is that an XMLport export leaks fields that are not part of the approved customer-facing contract, so the direct response is to remove unneeded nodes and enforce permissions before streaming records.

Question 761

At fictional Yorkshire Housing, the Business Central development team is supporting property service charges and reviewing AL business logic and user experience during a code quality review (MB820-4.1-131). The observed development issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. Which recurring engineering check would best prevent this issue from returning?

  1. Update checklist items when installation prerequisites change.
  2. Test the setup from a clean company environment.
  3. Revalidate saved views when underlying fields are renamed.
  4. Audit translation coverage of teaching tips and checklist text.

Explanation

Correct Answer

C:

The ongoing check is to revalidate saved views when underlying fields are renamed. This helps detect recurrence when a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. The associated correction is to provide a suitable list view or supported view customization for the role; a confirming result is that the user opens the intended filtered record set with one selection.

Incorrect Answers

A:

The proposed “Update checklist items when installation prerequisites change” tests a different control: create an onboarding checklist with required tasks and suitable launch destinations. The reported condition is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day; the more direct action is to revalidate saved views when underlying fields are renamed.

B:

“Test the setup from a clean company environment” supports the separate task “use an assisted setup flow with ordered steps, validation and completion state”, not the reported problem: a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. This case instead calls for “Revalidate saved views when underlying fields are renamed”.

D:

“Audit translation coverage of teaching tips and checklist text” concerns the alternative task “include user-assistance strings in the language resource review and translation workflow”, but the stated failure is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. The required measure is to revalidate saved views when underlying fields are renamed.

Question 762

At fictional Yorkshire Housing, the Business Central development team is supporting property service charges and reviewing AL business logic and user experience during a code quality review (MB820-4.1-131). The observed development issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. Which Business Central or AL development principle best explains the right response?

  1. Views package reusable filter and sorting behavior for list experiences.
  2. Checklists make first-run activities visible and actionable.
  3. UI views should make data selection predictable.
  4. Personalized navigation should not alter underlying business authorization.

Explanation

Correct Answer

A:

The governing principle is that views package reusable filter and sorting behavior for list experiences. The engineering response is to provide a suitable list view or supported view customization for the role. Verification should show that the user opens the intended filtered record set with one selection.

Incorrect Answers

B:

“Checklists make first-run activities visible and actionable” concerns the separate step “create an onboarding checklist with required tasks and suitable launch destinations”. The reported issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day, so the direct response is to provide a suitable list view or supported view customization for the role.

C:

“UI views should make data selection predictable” concerns the alternative task “name and configure supported views clearly and test switching behavior”, but the stated failure is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. The required measure is to provide a suitable list view or supported view customization for the role.

D:

The proposed “Personalized navigation should not alter underlying business authorization” tests a different control: use separate supported profiles/Role Centers and assign appropriate user roles. The reported condition is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day; the more direct action is to provide a suitable list view or supported view customization for the role.

Question 763

At fictional Yorkshire Housing, the Business Central development team is supporting property service charges and reviewing AL business logic and user experience during a code quality review (MB820-4.1-131). The observed development issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. Which AL development or design response most directly addresses this issue?

  1. Create an onboarding checklist with required tasks and suitable launch destinations.
  2. Provide a suitable list view or supported view customization for the role.
  3. Include user-assistance strings in the language resource review and translation workflow.
  4. Create an AL profile tied to an appropriate Role Center and assign it to the intended users.

Explanation

Correct Answer

B:

The most direct corrective response is to provide a suitable list view or supported view customization for the role. This addresses the specific failure where a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. Acceptance evidence is that the user opens the intended filtered record set with one selection.

Incorrect Answers

A:

“Create an onboarding checklist with required tasks and suitable launch destinations” concerns the separate step “create an onboarding checklist with required tasks and suitable launch destinations”. The reported issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day, so the direct response is to provide a suitable list view or supported view customization for the role.

C:

The proposed “Include user-assistance strings in the language resource review and translation workflow” tests a different control: include user-assistance strings in the language resource review and translation workflow. The reported condition is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day; the more direct action is to provide a suitable list view or supported view customization for the role.

D:

“Create an AL profile tied to an appropriate Role Center and assign it to the intended users” supports the separate task “create an AL profile tied to an appropriate Role Center and assign it to the intended users”, not the reported problem: a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. This case instead calls for “provide a suitable list view or supported view customization for the role”.

Question 764

At fictional Yorkshire Housing, the Business Central development team is supporting property service charges and reviewing AL business logic and user experience during a code quality review (MB820-4.1-131). The observed development issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. Which observed result would most clearly show the intended correction works?

  1. The user opens the intended filtered record set with one selection.
  2. A new tenant can configure prerequisites in a supported sequence.
  3. First-time users can complete the workflow without external training links.
  4. The selected client language shows both translated UI labels and setup guidance.

Explanation

Correct Answer

A:

This is the outcome that directly verifies the intended correction: the user opens the intended filtered record set with one selection. The related solution is to provide a suitable list view or supported view customization for the role; it is based on the principle that views package reusable filter and sorting behavior for list experiences.

Incorrect Answers

B:

The proposed “A new tenant can configure prerequisites in a supported sequence” tests a different control: use an assisted setup flow with ordered steps, validation and completion state. The reported condition is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day; the more direct action is to the user opens the intended filtered record set with one selection.

C:

“First-time users can complete the workflow without external training links” supports the separate task “add contextual user assistance or an appropriate teaching tip that explains the purpose and next step”, not the reported problem: a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day. This case instead calls for “The user opens the intended filtered record set with one selection”.

D:

“The selected client language shows both translated UI labels and setup guidance” concerns the separate step “include user-assistance strings in the language resource review and translation workflow”. The reported issue is that a sales team wants to reuse a saved filtered set of high-value opportunities instead of rebuilding filters every day, so the direct response is to the user opens the intended filtered record set with one selection.

Question 765

At fictional Fairview Commerce, the Business Central development team is supporting online sales processing and reviewing object model and application extensibility during a troubleshooting exercise (MB820-3.6-117). The observed development issue is that a query-based report returns inconsistent totals after developers add a new dimension column. Which AL development or design response most directly addresses this issue?

  1. Reevaluate grouping and totals when adding the dimension to the query projection.
  2. Apply a correct filter in the query or at the query execution boundary.
  3. Reuse a suitable query data source or aggregate dataset design for report data.
  4. Define the DataItemLink and join type that match the intended relationship.

Explanation

Correct Answer

A:

The most direct corrective response is to reevaluate grouping and totals when adding the dimension to the query projection. This addresses the specific failure where a query-based report returns inconsistent totals after developers add a new dimension column. Acceptance evidence is that totals reconcile at both overall and dimension level.

Incorrect Answers

B:

“Apply a correct filter in the query or at the query execution boundary” supports the separate task “apply a correct filter in the query or at the query execution boundary”, not the reported problem: a query-based report returns inconsistent totals after developers add a new dimension column. This case instead calls for “reevaluate grouping and totals when adding the dimension to the query projection”.

C:

“Reuse a suitable query data source or aggregate dataset design for report data” concerns the separate step “reuse a suitable query data source or aggregate dataset design for report data”. The reported issue is that a query-based report returns inconsistent totals after developers add a new dimension column, so the direct response is to reevaluate grouping and totals when adding the dimension to the query projection.

D:

“Define the DataItemLink and join type that match the intended relationship” concerns the alternative task “define the DataItemLink and join type that match the intended relationship”, but the stated failure is that a query-based report returns inconsistent totals after developers add a new dimension column. The required measure is to reevaluate grouping and totals when adding the dimension to the query projection.

Question 766

At fictional Fairview Commerce, the Business Central development team is supporting online sales processing and reviewing object model and application extensibility during a troubleshooting exercise (MB820-3.6-117). The observed development issue is that a query-based report returns inconsistent totals after developers add a new dimension column. Which recurring engineering check would best prevent this issue from returning?

  1. Test one-to-many and missing-child relationships.
  2. Test matched and unmatched dataitem cases.
  3. Test grouping with multiple transactions per customer.
  4. Reconcile totals across report versions.

Explanation

Correct Answer

D:

The ongoing check is to reconcile totals across report versions. This helps detect recurrence when a query-based report returns inconsistent totals after developers add a new dimension column. The associated correction is to reevaluate grouping and totals when adding the dimension to the query projection; a confirming result is that totals reconcile at both overall and dimension level.

Incorrect Answers

A:

“Test one-to-many and missing-child relationships” supports the separate task “define the DataItemLink and join type that match the intended relationship”, not the reported problem: a query-based report returns inconsistent totals after developers add a new dimension column. This case instead calls for “Reconcile totals across report versions”.

B:

“Test matched and unmatched dataitem cases” concerns the separate step “select a supported outer-join or alternative query design that preserves missing related records”. The reported issue is that a query-based report returns inconsistent totals after developers add a new dimension column, so the direct response is to reconcile totals across report versions.

C:

“Test grouping with multiple transactions per customer” concerns the alternative task “review grouping columns and Sum/Count aggregation placement”, but the stated failure is that a query-based report returns inconsistent totals after developers add a new dimension column. The required measure is to reconcile totals across report versions.

Question 767

At fictional Fairview Commerce, the Business Central development team is supporting online sales processing and reviewing object model and application extensibility during a troubleshooting exercise (MB820-3.6-117). The observed development issue is that a query-based report returns inconsistent totals after developers add a new dimension column. Which Business Central or AL development principle best explains the right response?

  1. Filtering at the data source reduces unnecessary output and ambiguity.
  2. Aggregation granularity follows nonaggregated grouping columns.
  3. Query objects can push aggregations into the data retrieval layer.
  4. Changing a query's dimensions can alter aggregation grain.

Explanation

Correct Answer

D:

The governing principle is that changing a query's dimensions can alter aggregation grain. The engineering response is to reevaluate grouping and totals when adding the dimension to the query projection. Verification should show that totals reconcile at both overall and dimension level.

Incorrect Answers

A:

“Filtering at the data source reduces unnecessary output and ambiguity” concerns the separate step “apply a correct filter in the query or at the query execution boundary”. The reported issue is that a query-based report returns inconsistent totals after developers add a new dimension column, so the direct response is to reevaluate grouping and totals when adding the dimension to the query projection.

B:

“Aggregation granularity follows nonaggregated grouping columns” concerns the alternative task “review grouping columns and Sum/Count aggregation placement”, but the stated failure is that a query-based report returns inconsistent totals after developers add a new dimension column. The required measure is to reevaluate grouping and totals when adding the dimension to the query projection.

C:

The proposed “Query objects can push aggregations into the data retrieval layer” tests a different control: use a query object with an appropriate aggregation method and grouping columns. The reported condition is that a query-based report returns inconsistent totals after developers add a new dimension column; the more direct action is to reevaluate grouping and totals when adding the dimension to the query projection.

Question 768

At fictional Fairview Commerce, the Business Central development team is supporting online sales processing and reviewing object model and application extensibility during a troubleshooting exercise (MB820-3.6-117). The observed development issue is that a query-based report returns inconsistent totals after developers add a new dimension column. Which observed result would most clearly show the intended correction works?

  1. The analytical output is read-only while update operations use authorized logic.
  2. The query returns one summarized row per desired customer period.
  3. Totals reconcile at both overall and dimension level.
  4. The result set includes only the intended open orders.

Explanation

Correct Answer

C:

This is the outcome that directly verifies the intended correction: totals reconcile at both overall and dimension level. The related solution is to reevaluate grouping and totals when adding the dimension to the query projection; it is based on the principle that changing a query's dimensions can alter aggregation grain.

Incorrect Answers

A:

“The analytical output is read-only while update operations use authorized logic” concerns the alternative task “use the query for read-oriented analysis and a suitable record/codeunit workflow for writes”, but the stated failure is that a query-based report returns inconsistent totals after developers add a new dimension column. The required measure is to totals reconcile at both overall and dimension level.

B:

The proposed “The query returns one summarized row per desired customer period” tests a different control: review grouping columns and Sum/Count aggregation placement. The reported condition is that a query-based report returns inconsistent totals after developers add a new dimension column; the more direct action is to totals reconcile at both overall and dimension level.

D:

“The result set includes only the intended open orders” concerns the separate step “apply a correct filter in the query or at the query execution boundary”. The reported issue is that a query-based report returns inconsistent totals after developers add a new dimension column, so the direct response is to totals reconcile at both overall and dimension level.

Question 769

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing solution architecture design during a code quality review (MB820-1.2-016). The observed development issue is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. Which AL development or design response most directly addresses this issue?

  1. Implement published tables, page extensions and event subscribers rather than distributing a modified base application.
  2. Add language translation files and validate translatable properties for the supported locales.
  3. Version public interfaces compatibly and review downstream dependency contracts before a breaking change.
  4. Allocate supported object ID ranges and check unique app identity and object conflicts.

Explanation

Correct Answer

A:

The most direct corrective response is to implement published tables, page extensions and event subscribers rather than distributing a modified base application. This addresses the specific failure where an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. Acceptance evidence is that the extension passes compatibility tests while the base application remains independently updatable.

Incorrect Answers

B:

“Add language translation files and validate translatable properties for the supported locales” supports the separate task “add language translation files and validate translatable properties for the supported locales”, not the reported problem: an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. This case instead calls for “implement published tables, page extensions and event subscribers rather than distributing a modified base application”.

C:

“Version public interfaces compatibly and review downstream dependency contracts before a breaking change” concerns the separate step “version public interfaces compatibly and review downstream dependency contracts before a breaking change”. The reported issue is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior, so the direct response is to implement published tables, page extensions and event subscribers rather than distributing a modified base application.

D:

“Allocate supported object ID ranges and check unique app identity and object conflicts” concerns the alternative task “allocate supported object ID ranges and check unique app identity and object conflicts”, but the stated failure is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. The required measure is to implement published tables, page extensions and event subscribers rather than distributing a modified base application.

Question 770

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing solution architecture design during a code quality review (MB820-1.2-016). The observed development issue is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. Which recurring engineering check would best prevent this issue from returning?

  1. Compare exported API surfaces at every version promotion.
  2. Check AppSource compatibility and extension analyzer results before submission.
  3. Run translation coverage review before each AppSource release.
  4. Run marketplace-specific checks in CI before submitting a release.

Explanation

Correct Answer

B:

The ongoing check is to check AppSource compatibility and extension analyzer results before submission. This helps detect recurrence when an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. The associated correction is to implement published tables, page extensions and event subscribers rather than distributing a modified base application; a confirming result is that the extension passes compatibility tests while the base application remains independently updatable.

Incorrect Answers

A:

“Compare exported API surfaces at every version promotion” supports the separate task “version public interfaces compatibly and review downstream dependency contracts before a breaking change”, not the reported problem: an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. This case instead calls for “Check AppSource compatibility and extension analyzer results before submission”.

C:

“Run translation coverage review before each AppSource release” concerns the alternative task “add language translation files and validate translatable properties for the supported locales”, but the stated failure is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior. The required measure is to check AppSource compatibility and extension analyzer results before submission.

D:

The proposed “Run marketplace-specific checks in CI before submitting a release” tests a different control: run the appropriate AppSourceCop and code analysis gates against the target runtime. The reported condition is that an ISV edits Microsoft-owned source objects because it believes AppSource packages cannot extend standard behavior; the more direct action is to check AppSource compatibility and extension analyzer results before submission.