McAfee Secure

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

Microsoft MB-820 Bundle $19.99

100% Microsoft MB-820 Guaranteed Success With Testking Training Materials

Get Real MB-820 Exam Questions & Expert Verified Answers as Experienced on the Real Exam!

  • Questions & Answers

    MB-820 Questions & Answers

    131 Questions & Answers

    The ultimate exam preparation tool, Questions & Answers mirrors the actual MB-820 exam while allowing you to hone and measure every aspect of your test-taking ability.

  • Study Guide

    MB-820 Study Guide

    948 PDF Pages

    Developed by industry experts, this 948-page guide spells out in painstaking detail all of the information you need to ace MB-820 exam.

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

Satisfaction Guaranteed

Money Back Guarantee

Testking provides hassle-free money back guarantee with our products. That is because we have 100% trust in the abilities of our professional and experience product team, and our record is a proof of that.

99.6% PASS RATE
Total Cost: $154.98
Bundle Price: $134.99

Purchase Individually

  • Questions & Answers

    Questions & Answers

    131 Questions

    $124.99
  • Study Guide

    Study Guide

    948 PDF Pages

    $29.99

Microsoft MB-820 Practice Test 39

Question 380

At fictional Granite Telecom, the Business Central development team is supporting field equipment billing and reviewing object model and application extensibility during a tenant acceptance test (MB820-3.5-112). The observed development issue is that a finance extension requires a service codeunit to update a protected table on behalf of a controlled workflow. Which observed result would most clearly show the intended correction works?

  1. Authorized users can perform required operations on the new table only.
  2. Read succeeds and an attempted unauthorized write is denied.
  3. The codeunit performs only its approved operation without giving every caller broad table rights.
  4. Users with the intended license retain approved features while restricted capabilities remain unavailable.

Explanation

Correct Answer

C:

This is the outcome that directly verifies the intended correction: the codeunit performs only its approved operation without giving every caller broad table rights. The related solution is to use documented permissions properties or least-privilege execution design where applicable; it is based on the principle that elevated execution must be deliberately scoped and reviewed.

Incorrect Answers

A:

“Authorized users can perform required operations on the new table only” concerns the alternative task “add the table-data rights to an appropriate permissionset or permissionsetextension”, but the stated failure is that a finance extension requires a service codeunit to update a protected table on behalf of a controlled workflow. The required measure is to the codeunit performs only its approved operation without giving every caller broad table rights.

B:

The proposed “Read succeeds and an attempted unauthorized write is denied” tests a different control: assign a role with read rights and no unauthorized edit permissions to the relevant table data. The reported condition is that a finance extension requires a service codeunit to update a protected table on behalf of a controlled workflow; the more direct action is to the codeunit performs only its approved operation without giving every caller broad table rights.

D:

“Users with the intended license retain approved features while restricted capabilities remain unavailable” concerns the separate step “model supported entitlements and application rights separately, testing their combined effect”. The reported issue is that a finance extension requires a service codeunit to update a protected table on behalf of a controlled workflow, so the direct response is to the codeunit performs only its approved operation without giving every caller broad table rights.

Question 381

At fictional Summit Parts, the Business Central development team is supporting after-sales order processing and reviewing solution architecture design during a code quality review (MB820-1.2-020). The observed development issue is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. Which recurring engineering check would best prevent this issue from returning?

  1. Check ID conflicts against declared installed dependencies.
  2. Require owner approval for destructive extension cleanup.
  3. Review dependency direction when introducing shared utility code.
  4. Run marketplace-specific checks in CI before submitting a release.

Explanation

Correct Answer

C:

The ongoing check is to review dependency direction when introducing shared utility code. This helps detect recurrence when a developer tries to persist a reusable security helper inside a retail document table in the Base Application. The associated correction is to use an appropriate System Application API or a distinct reusable extension module; a confirming result is that the helper can be reused across unrelated business extensions with an explicit dependency.

Incorrect Answers

A:

The proposed “Check ID conflicts against declared installed dependencies” tests a different control: allocate supported object ID ranges and check unique app identity and object conflicts. The reported condition is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application; the more direct action is to review dependency direction when introducing shared utility code.

B:

“Require owner approval for destructive extension cleanup” supports the separate task “document supported uninstall and delete-data behavior, preserve data as required and use deliberate cleanup procedures”, not the reported problem: a developer tries to persist a reusable security helper inside a retail document table in the Base Application. This case instead calls for “Review dependency direction when introducing shared utility code”.

D:

“Run marketplace-specific checks in CI before submitting a release” concerns the alternative task “run the appropriate AppSourceCop and code analysis gates against the target runtime”, but the stated failure is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. The required measure is to review dependency direction when introducing shared utility code.

Question 382

At fictional Summit Parts, the Business Central development team is supporting after-sales order processing and reviewing solution architecture design during a code quality review (MB820-1.2-020). The observed development issue is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. Which Business Central or AL development principle best explains the right response?

  1. System-level services and business document schemas should not be conflated.
  2. Business Central extension dependencies are explicit contracts.
  3. Marketplace apps are packaged extensions rather than private forks of Microsoft source.
  4. Published extension interfaces are integration commitments.

Explanation

Correct Answer

A:

The governing principle is that system-level services and business document schemas should not be conflated. The engineering response is to use an appropriate System Application API or a distinct reusable extension module. Verification should show that the helper can be reused across unrelated business extensions with an explicit dependency.

Incorrect Answers

B:

“Business Central extension dependencies are explicit contracts” concerns the separate step “declare the exact dependency identifier and compatible version constraints in the manifest”. The reported issue is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application, so the direct response is to use an appropriate System Application API or a distinct reusable extension module.

C:

“Marketplace apps are packaged extensions rather than private forks of Microsoft source” concerns the alternative task “implement published tables, page extensions and event subscribers rather than distributing a modified base application”, but the stated failure is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. The required measure is to use an appropriate System Application API or a distinct reusable extension module.

D:

The proposed “Published extension interfaces are integration commitments” tests a different control: version public interfaces compatibly and review downstream dependency contracts before a breaking change. The reported condition is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application; the more direct action is to use an appropriate System Application API or a distinct reusable extension module.

Question 383

At fictional Summit Parts, the Business Central development team is supporting after-sales order processing and reviewing solution architecture design during a code quality review (MB820-1.2-020). The observed development issue is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. Which observed result would most clearly show the intended correction works?

  1. The helper can be reused across unrelated business extensions with an explicit dependency.
  2. The extension passes compatibility tests while the base application remains independently updatable.
  3. The submitted artifact satisfies supported checks without requiring manual bypasses.
  4. A compatibility test shows old consumers still work or fail with a documented upgrade path.

Explanation

Correct Answer

A:

This is the outcome that directly verifies the intended correction: the helper can be reused across unrelated business extensions with an explicit dependency. The related solution is to use an appropriate System Application API or a distinct reusable extension module; it is based on the principle that system-level services and business document schemas should not be conflated.

Incorrect Answers

B:

“The extension passes compatibility tests while the base application remains independently updatable” concerns the alternative task “implement published tables, page extensions and event subscribers rather than distributing a modified base application”, but the stated failure is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. The required measure is to the helper can be reused across unrelated business extensions with an explicit dependency.

C:

The proposed “The submitted artifact satisfies supported checks without requiring manual bypasses” tests a different control: run the appropriate AppSourceCop and code analysis gates against the target runtime. The reported condition is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application; the more direct action is to the helper can be reused across unrelated business extensions with an explicit dependency.

D:

“A compatibility test shows old consumers still work or fail with a documented upgrade path” supports the separate task “version public interfaces compatibly and review downstream dependency contracts before a breaking change”, not the reported problem: a developer tries to persist a reusable security helper inside a retail document table in the Base Application. This case instead calls for “The helper can be reused across unrelated business extensions with an explicit dependency”.

Question 384

At fictional Summit Parts, the Business Central development team is supporting after-sales order processing and reviewing solution architecture design during a code quality review (MB820-1.2-020). The observed development issue is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. Which AL development or design response most directly addresses this issue?

  1. Select a per-tenant deployment for tenant-specific use and an AppSource publishing workflow for marketplace distribution.
  2. Document supported uninstall and delete-data behavior, preserve data as required and use deliberate cleanup procedures.
  3. Use documented extension points and define integration precedence, supported events and compatibility tests.
  4. Use an appropriate System Application API or a distinct reusable extension module.

Explanation

Correct Answer

D:

The most direct corrective response is to use an appropriate System Application API or a distinct reusable extension module. This addresses the specific failure where a developer tries to persist a reusable security helper inside a retail document table in the Base Application. Acceptance evidence is that the helper can be reused across unrelated business extensions with an explicit dependency.

Incorrect Answers

A:

“Select a per-tenant deployment for tenant-specific use and an AppSource publishing workflow for marketplace distribution” concerns the alternative task “select a per-tenant deployment for tenant-specific use and an AppSource publishing workflow for marketplace distribution”, but the stated failure is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application. The required measure is to use an appropriate System Application API or a distinct reusable extension module.

B:

The proposed “Document supported uninstall and delete-data behavior, preserve data as required and use deliberate cleanup procedures” tests a different control: document supported uninstall and delete-data behavior, preserve data as required and use deliberate cleanup procedures. The reported condition is that a developer tries to persist a reusable security helper inside a retail document table in the Base Application; the more direct action is to use an appropriate System Application API or a distinct reusable extension module.

C:

“Use documented extension points and define integration precedence, supported events and compatibility tests” supports the separate task “use documented extension points and define integration precedence, supported events and compatibility tests”, not the reported problem: a developer tries to persist a reusable security helper inside a retail document table in the Base Application. This case instead calls for “use an appropriate System Application API or a distinct reusable extension module”.

Question 385

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing automated testing and diagnostics during a production readiness review (MB820-5.2-176). The observed development issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. Which recurring engineering check would best prevent this issue from returning?

  1. Alert on sustained failed-job counters.
  2. Review p95 durations for critical reports after deploy.
  3. Monitor missing correlation fields in sampled events.
  4. Inspect custom dimensions before production deployment.

Explanation

Correct Answer

D:

The ongoing check is to inspect custom dimensions before production deployment. This helps detect recurrence when a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. The associated correction is to emit minimized non-sensitive dimensions and avoid personal data in custom signals; a confirming result is that reports remain diagnosable while telemetry contains no unnecessary addresses.

Incorrect Answers

A:

The proposed “Alert on sustained failed-job counters” tests a different control: emit safe failure signals and preserve actionable error outcomes in the job path. The reported condition is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report; the more direct action is to inspect custom dimensions before production deployment.

B:

“Review p95 durations for critical reports after deploy” supports the separate task “measure report-specific duration and relevant operation dimensions over comparable periods”, not the reported problem: a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. This case instead calls for “Inspect custom dimensions before production deployment”.

C:

“Monitor missing correlation fields in sampled events” concerns the separate step “use supported telemetry correlation identifiers and span context where available”. The reported issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report, so the direct response is to inspect custom dimensions before production deployment.

Question 386

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing automated testing and diagnostics during a production readiness review (MB820-5.2-176). The observed development issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. Which observed result would most clearly show the intended correction works?

  1. An alert identifies failing attempts and lets operators distinguish error classes.
  2. Reports remain diagnosable while telemetry contains no unnecessary addresses.
  3. Application Insights records support tracing an individual slow operation without exposing private content.
  4. An expected test signal appears in the authorized Application Insights resource.

Explanation

Correct Answer

B:

This is the outcome that directly verifies the intended correction: reports remain diagnosable while telemetry contains no unnecessary addresses. The related solution is to emit minimized non-sensitive dimensions and avoid personal data in custom signals; it is based on the principle that observability must respect privacy and data minimization.

Incorrect Answers

A:

“An alert identifies failing attempts and lets operators distinguish error classes” supports the separate task “instrument both success and failure paths with status, duration and safe error identifiers”, not the reported problem: a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. This case instead calls for “Reports remain diagnosable while telemetry contains no unnecessary addresses”.

C:

“Application Insights records support tracing an individual slow operation without exposing private content” concerns the alternative task “configure telemetry and use meaningful dimensions to link the operation to the affected environment”, but the stated failure is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. The required measure is to reports remain diagnosable while telemetry contains no unnecessary addresses.

D:

The proposed “An expected test signal appears in the authorized Application Insights resource” tests a different control: configure a supported telemetry destination and confirm the extension's emitted events reach it. The reported condition is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report; the more direct action is to reports remain diagnosable while telemetry contains no unnecessary addresses.

Question 387

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing automated testing and diagnostics during a production readiness review (MB820-5.2-176). The observed development issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. Which AL development or design response most directly addresses this issue?

  1. Measure report-specific duration and relevant operation dimensions over comparable periods.
  2. Use stable event identifiers and a controlled schema for emitted telemetry.
  3. Emit minimized non-sensitive dimensions and avoid personal data in custom signals.
  4. Instrument both success and failure paths with status, duration and safe error identifiers.

Explanation

Correct Answer

C:

The most direct corrective response is to emit minimized non-sensitive dimensions and avoid personal data in custom signals. This addresses the specific failure where a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. Acceptance evidence is that reports remain diagnosable while telemetry contains no unnecessary addresses.

Incorrect Answers

A:

“Measure report-specific duration and relevant operation dimensions over comparable periods” concerns the separate step “measure report-specific duration and relevant operation dimensions over comparable periods”. The reported issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report, so the direct response is to emit minimized non-sensitive dimensions and avoid personal data in custom signals.

B:

“Use stable event identifiers and a controlled schema for emitted telemetry” concerns the alternative task “use stable event identifiers and a controlled schema for emitted telemetry”, but the stated failure is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. The required measure is to emit minimized non-sensitive dimensions and avoid personal data in custom signals.

D:

“Instrument both success and failure paths with status, duration and safe error identifiers” supports the separate task “instrument both success and failure paths with status, duration and safe error identifiers”, not the reported problem: a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. This case instead calls for “emit minimized non-sensitive dimensions and avoid personal data in custom signals”.

Question 388

At fictional Willow Foods, the Business Central development team is supporting warehouse quality control and reviewing automated testing and diagnostics during a production readiness review (MB820-5.2-176). The observed development issue is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. Which Business Central or AL development principle best explains the right response?

  1. Telemetry should balance useful signal and operational overhead.
  2. Silent background failures require explicit diagnostics.
  3. Telemetry event contracts should be versioned deliberately.
  4. Observability must respect privacy and data minimization.

Explanation

Correct Answer

D:

The governing principle is that observability must respect privacy and data minimization. The engineering response is to emit minimized non-sensitive dimensions and avoid personal data in custom signals. Verification should show that reports remain diagnosable while telemetry contains no unnecessary addresses.

Incorrect Answers

A:

“Telemetry should balance useful signal and operational overhead” concerns the alternative task “use appropriate verbosity and targeted instrumentation for meaningful events”, but the stated failure is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. The required measure is to emit minimized non-sensitive dimensions and avoid personal data in custom signals.

B:

The proposed “Silent background failures require explicit diagnostics” tests a different control: emit safe failure signals and preserve actionable error outcomes in the job path. The reported condition is that a developer logs entire customer addresses in custom telemetry events to troubleshoot a report; the more direct action is to emit minimized non-sensitive dimensions and avoid personal data in custom signals.

C:

“Telemetry event contracts should be versioned deliberately” supports the separate task “use stable event identifiers and a controlled schema for emitted telemetry”, not the reported problem: a developer logs entire customer addresses in custom telemetry events to troubleshoot a report. This case instead calls for “emit minimized non-sensitive dimensions and avoid personal data in custom signals”.

Question 389

At fictional Valley Media, the Business Central development team is supporting advertising orders and invoices and reviewing object model and application extensibility during an extension maintenance sprint (MB820-3.1-062). The observed development issue is that a new table stores customer email data without any declared data classification. Which observed result would most clearly show the intended correction works?

  1. Field metadata correctly classifies personal identifiers for governance review.
  2. The user can edit one entity with clear sectioned detail while list navigation remains separate.
  3. The UI supports header navigation and related line entry using the intended structure.
  4. The standard Customer table remains intact and the field is visible after extension installation.

Explanation

Correct Answer

A:

This is the outcome that directly verifies the intended correction: field metadata correctly classifies personal identifiers for governance review. The related solution is to set appropriate DataClassification properties on table fields and review their privacy meaning; it is based on the principle that data model design includes privacy metadata as well as type and length.

Incorrect Answers

B:

“The user can edit one entity with clear sectioned detail while list navigation remains separate” supports the separate task “use a Card page bound to the record and organize fields into logical groups”, not the reported problem: a new table stores customer email data without any declared data classification. This case instead calls for “Field metadata correctly classifies personal identifiers for governance review”.

C:

“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 new table stores customer email data without any declared data classification, so the direct response is to field metadata correctly classifies personal identifiers for governance review.

D:

“The standard Customer table remains intact and the field is visible after extension installation” concerns the alternative task “create a tableextension to add the field and a pageextension to surface it on the customer page”, but the stated failure is that a new table stores customer email data without any declared data classification. The required measure is to field metadata correctly classifies personal identifiers for governance review.

Question 390

At fictional Valley Media, the Business Central development team is supporting advertising orders and invoices and reviewing object model and application extensibility during an extension maintenance sprint (MB820-3.1-062). The observed development issue is that a new table stores customer email data without any declared data classification. Which AL development or design response most directly addresses this issue?

  1. Select the proper Document page pattern and related subpage for line data.
  2. Add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions.
  3. Set appropriate DataClassification properties on table fields and review their privacy meaning.
  4. Use a Card page bound to the record and organize fields into logical groups.

Explanation

Correct Answer

C:

The most direct corrective response is to set appropriate DataClassification properties on table fields and review their privacy meaning. This addresses the specific failure where a new table stores customer email data without any declared data classification. Acceptance evidence is that field metadata correctly classifies personal identifiers for governance review.

Incorrect Answers

A:

“Select the proper Document page pattern and related subpage for line data” supports the separate task “select the proper Document page pattern and related subpage for line data”, not the reported problem: a new table stores customer email data without any declared data classification. This case instead calls for “set appropriate DataClassification properties on table fields and review their privacy meaning”.

B:

“Add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions” concerns the separate step “add the field in the appropriate pageextension layout section and verify ApplicationArea and permissions”. The reported issue is that a new table stores customer email data without any declared data classification, so the direct response is to set appropriate DataClassification properties on table fields and review their privacy meaning.

D:

The proposed “Use a Card page bound to the record and organize fields into logical groups” tests a different control: use a Card page bound to the record and organize fields into logical groups. The reported condition is that a new table stores customer email data without any declared data classification; the more direct action is to set appropriate DataClassification properties on table fields and review their privacy meaning.