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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 47

Question 460

At fictional Evergreen Print, the Business Central development team is supporting print production scheduling and reviewing automated testing and diagnostics during a release qualification test (MB820-5.2-177). The observed development issue is that an extension is slow for some tenants but developer logs show no environment, operation or correlation context. Which recurring engineering check would best prevent this issue from returning?

  1. Validate dashboard queries when event schemas change.
  2. Track custom-event rates after major feature releases.
  3. Alert on sustained failed-job counters.
  4. Review telemetry coverage after critical workflow changes.

Explanation

Correct Answer

D:

The ongoing check is to review telemetry coverage after critical workflow changes. This helps detect recurrence when an extension is slow for some tenants but developer logs show no environment, operation or correlation context. The associated correction is to configure telemetry and use meaningful dimensions to link the operation to the affected environment; a confirming result is that application Insights records support tracing an individual slow operation without exposing private content.

Incorrect Answers

A:

“Validate dashboard queries when event schemas change” concerns the alternative task “use stable event identifiers and a controlled schema for emitted telemetry”, but the stated failure is that an extension is slow for some tenants but developer logs show no environment, operation or correlation context. The required measure is to review telemetry coverage after critical workflow changes.

B:

The proposed “Track custom-event rates after major feature releases” tests a different control: use appropriate verbosity and targeted instrumentation for meaningful events. The reported condition is that an extension is slow for some tenants but developer logs show no environment, operation or correlation context; the more direct action is to review telemetry coverage after critical workflow changes.

C:

“Alert on sustained failed-job counters” supports the separate task “emit safe failure signals and preserve actionable error outcomes in the job path”, not the reported problem: an extension is slow for some tenants but developer logs show no environment, operation or correlation context. This case instead calls for “Review telemetry coverage after critical workflow changes”.

Question 461

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing solution architecture design during a code quality review (MB820-1.1-012). The observed development issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. Which observed result would most clearly show the intended correction works?

  1. The extension deploys successfully to an online sandbox without a server-local .NET assembly.
  2. The release plan distinguishes Microsoft-managed platform updates from customer-managed extension releases.
  3. An isolated-tenant test shows no unintended cross-tenant records and approved integration transfers only permitted data.
  4. The customization is deployed as an app without overwriting Microsoft's application objects.

Explanation

Correct Answer

A:

This is the outcome that directly verifies the intended correction: the extension deploys successfully to an online sandbox without a server-local .NET assembly. The related solution is to replace the server-specific .NET dependency with supported AL or external service integration appropriate to cloud execution; it is based on the principle that online extension execution differs from the on-premises server customization environment.

Incorrect Answers

B:

“The release plan distinguishes Microsoft-managed platform updates from customer-managed extension releases” supports the separate task “assign extension code ownership and compatibility testing to the publisher while Microsoft maintains the online platform”, not the reported problem: a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. This case instead calls for “The extension deploys successfully to an online sandbox without a server-local .NET assembly”.

C:

“An isolated-tenant test shows no unintended cross-tenant records and approved integration transfers only permitted data” concerns the separate step “design explicit authorized integration rather than assuming Business Central tenant databases share company data”. The reported issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online, so the direct response is to the extension deploys successfully to an online sandbox without a server-local .NET assembly.

D:

“The customization is deployed as an app without overwriting Microsoft's application objects” concerns the alternative task “design a separate AL extension that adds the required fields and logic through supported extensibility points”, but the stated failure is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. The required measure is to the extension deploys successfully to an online sandbox without a server-local .NET assembly.

Question 462

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing solution architecture design during a code quality review (MB820-1.1-012). The observed development issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. Which Business Central or AL development principle best explains the right response?

  1. SaaS servicing does not transfer responsibility for third-party app quality.
  2. Online extension execution differs from the on-premises server customization environment.
  3. Extension lifecycle planning must consider both publisher and platform version changes.
  4. Client presentation and application execution have distinct responsibilities.

Explanation

Correct Answer

B:

The governing principle is that online extension execution differs from the on-premises server customization environment. The engineering response is to replace the server-specific .NET dependency with supported AL or external service integration appropriate to cloud execution. Verification should show that the extension deploys successfully to an online sandbox without a server-local .NET assembly.

Incorrect Answers

A:

“SaaS servicing does not transfer responsibility for third-party app quality” supports the separate task “assign extension code ownership and compatibility testing to the publisher while Microsoft maintains the online platform”, not the reported problem: a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. This case instead calls for “replace the server-specific”.

C:

“Extension lifecycle planning must consider both publisher and platform version changes” concerns the alternative task “track the platform release cycle and qualify extension versions against available compatibility signals”, but the stated failure is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. The required measure is to replace the server-specific.

D:

The proposed “Client presentation and application execution have distinct responsibilities” tests a different control: document how the browser client, service tier, AL extensions and managed data platform participate in operations. The reported condition is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online; the more direct action is to replace the server-specific.

Question 463

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing solution architecture design during a code quality review (MB820-1.1-012). The observed development issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. Which AL development or design response most directly addresses this issue?

  1. Replace the server-specific .NET dependency with supported AL or external service integration appropriate to cloud execution.
  2. Assess deployment-specific restrictions and select cloud-compatible APIs when SaaS must be supported.
  3. Design a separate AL extension that adds the required fields and logic through supported extensibility points.
  4. Select supported Business Central capabilities and explicit service integrations for Microsoft 365 workflows.

Explanation

Correct Answer

A:

The most direct corrective response is to replace the server-specific .NET dependency with supported AL or external service integration appropriate to cloud execution. This addresses the specific failure where a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. Acceptance evidence is that the extension deploys successfully to an online sandbox without a server-local .NET assembly.

Incorrect Answers

B:

“Assess deployment-specific restrictions and select cloud-compatible APIs when SaaS must be supported” concerns the alternative task “assess deployment-specific restrictions and select cloud-compatible APIs when SaaS must be supported”, but the stated failure is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. The required measure is to replace the server-specific.

C:

The proposed “Design a separate AL extension that adds the required fields and logic through supported extensibility points” tests a different control: design a separate AL extension that adds the required fields and logic through supported extensibility points. The reported condition is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online; the more direct action is to replace the server-specific.

D:

“Select supported Business Central capabilities and explicit service integrations for Microsoft 365 workflows” supports the separate task “select supported Business Central capabilities and explicit service integrations for Microsoft 365 workflows”, not the reported problem: a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. This case instead calls for “replace the server-specific”.

Question 464

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing solution architecture design during a code quality review (MB820-1.1-012). The observed development issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. Which recurring engineering check would best prevent this issue from returning?

  1. Run online target and analyzer checks before accepting a technical design.
  2. Review object references and extension points for correct application layer ownership.
  3. Check app dependencies during every automated build and upgrade.
  4. Review customization requests for unsupported base-object replacement.

Explanation

Correct Answer

A:

The ongoing check is to run online target and analyzer checks before accepting a technical design. This helps detect recurrence when a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. The associated correction is to replace the server-specific .NET dependency with supported AL or external service integration appropriate to cloud execution; a confirming result is that the extension deploys successfully to an online sandbox without a server-local .NET assembly.

Incorrect Answers

B:

The proposed “Review object references and extension points for correct application layer ownership” tests a different control: use the System Application APIs for reusable system capabilities and extend the Base Application for business processes. The reported condition is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online; the more direct action is to run online target and analyzer checks before accepting a technical design.

C:

“Check app dependencies during every automated build and upgrade” supports the separate task “separate independently maintained capabilities into versioned extension apps with explicit dependencies”, not the reported problem: a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online. This case instead calls for “Run online target and analyzer checks before accepting a technical design”.

D:

“Review customization requests for unsupported base-object replacement” concerns the separate step “design a separate AL extension that adds the required fields and logic through supported extensibility points”. The reported issue is that a finance analyst proposes an on-premises .NET dependency for an app that must run in Business Central online, so the direct response is to run online target and analyzer checks before accepting a technical design.

Question 465

At fictional Alder Distribution, the Business Central development team is supporting wholesale order fulfillment and reviewing object model and application extensibility during a sandbox design review (MB820-3.1-059). The observed development issue is that a product page field has correct data but the layout hides it from the intended user group. Which AL development or design response most directly addresses this issue?

  1. Define an appropriate FlowField with a CalcFormula and use CalcFields where required.
  2. Add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.
  3. Separate list/read-only presentation from interactive document editing pages using supported page types.
  4. Implement or extend an appropriate Role Center page/profile with relevant activities and actions.

Explanation

Correct Answer

B:

The most direct corrective response is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions. This addresses the specific failure where a product page field has correct data but the layout hides it from the intended user group. Acceptance evidence is that the approved role sees the field in the expected group without replacing the base page.

Incorrect Answers

A:

The proposed “Define an appropriate FlowField with a CalcFormula and use CalcFields where required” tests a different control: define an appropriate FlowField with a CalcFormula and use CalcFields where required. The reported condition is that a product page field has correct data but the layout hides it from the intended user group; the more direct action is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.

C:

“Separate list/read-only presentation from interactive document editing pages using supported page types” concerns the separate step “separate list/read-only presentation from interactive document editing pages using supported page types”. The reported issue is that a product page field has correct data but the layout hides it from the intended user group, so the direct response is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.

D:

“Implement or extend an appropriate Role Center page/profile with relevant activities and actions” concerns the alternative task “implement or extend an appropriate Role Center page/profile with relevant activities and actions”, but the stated failure is that a product page field has correct data but the layout hides it from the intended user group. The required measure is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.

Question 466

At fictional Alder Distribution, the Business Central development team is supporting wholesale order fulfillment and reviewing object model and application extensibility during a sandbox design review (MB820-3.1-059). The observed development issue is that a product page field has correct data but the layout hides it from the intended user group. Which recurring engineering check would best prevent this issue from returning?

  1. Test new field defaults and historical record handling during upgrades.
  2. Regression-test existing page actions after extension merge.
  3. Scan custom table fields for missing or incorrect classification.
  4. Run role-based page rendering checks after UI updates.

Explanation

Correct Answer

D:

The ongoing check is to run role-based page rendering checks after UI updates. This helps detect recurrence when a product page field has correct data but the layout hides it from the intended user group. The associated correction is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions; a confirming result is that the approved role sees the field in the expected group without replacing the base page.

Incorrect Answers

A:

“Test new field defaults and historical record handling during upgrades” supports the separate task “use a compatible field design and controlled initialization that respects existing rows”, not the reported problem: a product page field has correct data but the layout hides it from the intended user group. This case instead calls for “Run role-based page rendering checks after UI updates”.

B:

“Regression-test existing page actions after extension merge” concerns the separate step “use pageextension action modifications at a suitable existing placement”. The reported issue is that a product page field has correct data but the layout hides it from the intended user group, so the direct response is to run role-based page rendering checks after UI updates.

C:

“Scan custom table fields for missing or incorrect classification” concerns the alternative task “set appropriate DataClassification properties on table fields and review their privacy meaning”, but the stated failure is that a product page field has correct data but the layout hides it from the intended user group. The required measure is to run role-based page rendering checks after UI updates.

Question 467

At fictional Alder Distribution, the Business Central development team is supporting wholesale order fulfillment and reviewing object model and application extensibility during a sandbox design review (MB820-3.1-059). The observed development issue is that a product page field has correct data but the layout hides it from the intended user group. Which observed result would most clearly show the intended correction works?

  1. The UI supports header navigation and related line entry using the intended structure.
  2. Field metadata correctly classifies personal identifiers for governance review.
  3. The approved role sees the field in the expected group without replacing the base page.
  4. The new enum value is recognized without modifying the base object's existing members.

Explanation

Correct Answer

C:

This is the outcome that directly verifies the intended correction: the approved role sees the field in the expected group without replacing the base page. The related solution is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions; it is based on the principle that page extensions enhance specific UI surfaces and must consider visibility controls.

Incorrect Answers

A:

“The UI supports header navigation and related line entry using the intended structure” concerns the separate step “select the proper Document page pattern and related subpage for line data”. The reported issue is that a product page field has correct data but the layout hides it from the intended user group, so the direct response is to the approved role sees the field in the expected group without replacing the base page.

B:

“Field metadata correctly classifies personal identifiers for governance review” concerns the alternative task “set appropriate DataClassification properties on table fields and review their privacy meaning”, but the stated failure is that a product page field has correct data but the layout hides it from the intended user group. The required measure is to the approved role sees the field in the expected group without replacing the base page.

D:

“The new enum value is recognized without modifying the base object's existing members” supports the separate task “use a supported extensible enum or enumextension where the target model allows extension”, not the reported problem: a product page field has correct data but the layout hides it from the intended user group. This case instead calls for “The approved role sees the field in the expected group without replacing the base page”.

Question 468

At fictional Alder Distribution, the Business Central development team is supporting wholesale order fulfillment and reviewing object model and application extensibility during a sandbox design review (MB820-3.1-059). The observed development issue is that a product page field has correct data but the layout hides it from the intended user group. Which Business Central or AL development principle best explains the right response?

  1. Page extensions enhance specific UI surfaces and must consider visibility controls.
  2. Extensible enums permit declared values across compatible app boundaries.
  3. Data model design includes privacy metadata as well as type and length.
  4. Document interaction often requires parent/child page relationships.

Explanation

Correct Answer

A:

The governing principle is that page extensions enhance specific UI surfaces and must consider visibility controls. The engineering response is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions. Verification should show that the approved role sees the field in the expected group without replacing the base page.

Incorrect Answers

B:

The proposed “Extensible enums permit declared values across compatible app boundaries” tests a different control: use a supported extensible enum or enumextension where the target model allows extension. The reported condition is that a product page field has correct data but the layout hides it from the intended user group; the more direct action is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.

C:

“Data model design includes privacy metadata as well as type and length” supports the separate task “set appropriate DataClassification properties on table fields and review their privacy meaning”, not the reported problem: a product page field has correct data but the layout hides it from the intended user group. This case instead calls for “add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions”.

D:

“Document interaction often requires parent/child page relationships” concerns the separate step “select the proper Document page pattern and related subpage for line data”. The reported issue is that a product page field has correct data but the layout hides it from the intended user group, so the direct response is to add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.

Question 469

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing object model and application extensibility during a sandbox design review (MB820-3.6-115). The observed development issue is that a query has an aggregation column but the grouping fields create one group per unique transaction. Which Business Central or AL development principle best explains the right response?

  1. Query join semantics determine cardinality and optional-record handling.
  2. Service exposure does not change a query into a transactional API.
  3. Query objects are not a replacement for transactional business APIs.
  4. Aggregation granularity follows nonaggregated grouping columns.

Explanation

Correct Answer

D:

The governing principle is that aggregation granularity follows nonaggregated grouping columns. The engineering response is to review grouping columns and Sum/Count aggregation placement. Verification should show that the query returns one summarized row per desired customer period.

Incorrect Answers

A:

The proposed “Query join semantics determine cardinality and optional-record handling” tests a different control: define the DataItemLink and join type that match the intended relationship. The reported condition is that a query has an aggregation column but the grouping fields create one group per unique transaction; the more direct action is to review grouping columns and Sum/Count aggregation placement.

B:

“Service exposure does not change a query into a transactional API” supports the separate task “document the query's read-only contract and choose an API page for supported mutations”, not the reported problem: a query has an aggregation column but the grouping fields create one group per unique transaction. This case instead calls for “review grouping columns and Sum/Count aggregation placement”.

C:

“Query objects are not a replacement for transactional business APIs” concerns the separate step “use the query for read-oriented analysis and a suitable record/codeunit workflow for writes”. The reported issue is that a query has an aggregation column but the grouping fields create one group per unique transaction, so the direct response is to review grouping columns and Sum/Count aggregation placement.

Question 470

At fictional Xenon Office Supply, the Business Central development team is supporting office stock replenishment and reviewing object model and application extensibility during a sandbox design review (MB820-3.6-115). The observed development issue is that a query has an aggregation column but the grouping fields create one group per unique transaction. Which AL development or design response most directly addresses this issue?

  1. Use a query object with an appropriate aggregation method and grouping columns.
  2. Review grouping columns and Sum/Count aggregation placement.
  3. Reevaluate grouping and totals when adding the dimension to the query projection.
  4. Apply a correct filter in the query or at the query execution boundary.

Explanation

Correct Answer

B:

The most direct corrective response is to review grouping columns and Sum/Count aggregation placement. This addresses the specific failure where a query has an aggregation column but the grouping fields create one group per unique transaction. Acceptance evidence is that the query returns one summarized row per desired customer period.

Incorrect Answers

A:

“Use a query object with an appropriate aggregation method and grouping columns” supports the separate task “use a query object with an appropriate aggregation method and grouping columns”, not the reported problem: a query has an aggregation column but the grouping fields create one group per unique transaction. This case instead calls for “review grouping columns and Sum/Count aggregation placement”.

C:

“Reevaluate grouping and totals when adding the dimension to the query projection” concerns the alternative task “reevaluate grouping and totals when adding the dimension to the query projection”, but the stated failure is that a query has an aggregation column but the grouping fields create one group per unique transaction. The required measure is to review grouping columns and Sum/Count aggregation placement.

D:

The proposed “Apply a correct filter in the query or at the query execution boundary” tests a different control: apply a correct filter in the query or at the query execution boundary. The reported condition is that a query has an aggregation column but the grouping fields create one group per unique transaction; the more direct action is to review grouping columns and Sum/Count aggregation placement.