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Microsoft MB-820 Premium Bundle

MB-820 Premium File: 131 Questions & Answers

Last Update: Oct 12, 2026

MB-820 PDF Study Guide: 948 Pages

$74.99

MB-820 Bundle gives you unlimited access to "MB-820" files. However, this does not replace the need for a .vce exam simulator. To download your .vce exam simulator click here

Microsoft MB-820 Practice Test 12

Question 110

Two regional teams independently package different modules using the same app GUID and publisher metadata. The developer recommends the following change: Define a unique app ID and correct publisher/name/version metadata in app.json. Which technical explanation most directly justifies it in this case?

  1. The AL app manifest identifies an extension and its dependency/version contract across deployments
  2. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration
  3. AL compilation resolves external object metadata from downloaded referenced app symbols
  4. A multi-project workspace enables coordinated editing while each app retains its own manifest and dependency definitions

Explanation

Correct Answer

A:

The AL app manifest identifies an extension and its dependency/version contract across deployments. It connects the proposed action to the exact failure or requirement—Two regional teams independently package different modules using the same app GUID and publisher metadata. Confirmation would be build and tenant app inventory show unique app identity and intended publisher with no conflict.

Incorrect Answers

B:

That mechanism explains why the alternative action—install the al language extension in visual studio code and initialize an al project—helps in another case. It does not justify the proposed fix here; the al app manifest identifies an extension and its dependency/version contract across deployments. The distinguishing requirement is: Two regional teams independently package different modules using the same app GUID and publisher metadata.

C:

That mechanism explains why the alternative action—download compatible Business Central application symbols for the project target—helps in another case. It does not justify the proposed fix here; the al app manifest identifies an extension and its dependency/version contract across deployments. The distinguishing requirement is: Two regional teams independently package different modules using the same app GUID and publisher metadata.

D:

That mechanism explains why the alternative action—organize the al workspace and explicit project dependencies for all related apps—helps in another case. It does not justify the proposed fix here; the al app manifest identifies an extension and its dependency/version contract across deployments. The distinguishing requirement is: Two regional teams independently package different modules using the same app GUID and publisher metadata.

Question 111

Two regional teams independently package different modules using the same app GUID and publisher metadata. The team implemented a change aligned with this plan: Define a unique app ID and correct publisher/name/version metadata in app.json. Which acceptance result specifically verifies that the reported problem is resolved?

  1. AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox
  2. Build and tenant app inventory show unique app identity and intended publisher with no conflict
  3. The compiler resolves Sales Header or system library references and reports no missing-symbol errors
  4. Each package compiles with the expected dependency order and no ambiguous object references

Explanation

Correct Answer

B:

Build and tenant app inventory show unique app identity and intended publisher with no conflict. This is stronger than an unrelated health check because the desired design action is define a unique app id and correct publisher/name/version metadata in app.json, and the al app manifest identifies an extension and its dependency/version contract across deployments. The local requirement is: Two regional teams independently package different modules using the same app GUID and publisher metadata.

Incorrect Answers

A:

This would verify install the al language extension in visual studio code and initialize an al project, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: Two regional teams independently package different modules using the same app GUID and publisher metadata. The decisive local proof is build and tenant app inventory show unique app identity and intended publisher with no conflict.

C:

This would verify download compatible Business Central application symbols for the project target, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: Two regional teams independently package different modules using the same app GUID and publisher metadata. The decisive local proof is build and tenant app inventory show unique app identity and intended publisher with no conflict.

D:

This would verify organize the al workspace and explicit project dependencies for all related apps, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: Two regional teams independently package different modules using the same app GUID and publisher metadata. The decisive local proof is build and tenant app inventory show unique app identity and intended publisher with no conflict.

Question 112

Two regional teams independently package different modules using the same app GUID and publisher metadata. A targeted trial still reproduces the original gap after the team attempted this change: Define a unique app ID and correct publisher/name/version metadata in app.json. Which repair directly addresses the remaining defect?

  1. Install the AL tooling and reopen the workspace with its valid project and target settings
  2. Refresh the symbols from the correct environment and align app dependencies with the target versions
  3. Assign the proper unique app identity and republish using the corrected manifest and dependency references
  4. Add the missing project to the workspace and align dependency identities and versions before the build

Explanation

Correct Answer

C:

Assign the proper unique app identity and republish using the corrected manifest and dependency references. This directly addresses the remaining defect for the requirement—Two regional teams independently package different modules using the same app GUID and publisher metadata. It restores the mechanism described here: the al app manifest identifies an extension and its dependency/version contract across deployments.

Incorrect Answers

A:

This correction is for the separate condition: A support engineer edits .al files in a text editor and cannot compile or debug the extension. It would not directly restore the intended behavior in this situation: Two regional teams independently package different modules using the same app GUID and publisher metadata. Here, assign the proper unique app identity and republish using the corrected manifest and dependency references, because the al app manifest identifies an extension and its dependency/version contract across deployments.

B:

This correction is for the separate condition: A tester's project references an updated System Application API but keeps symbols downloaded from a different environment. It would not directly restore the intended behavior in this situation: Two regional teams independently package different modules using the same app GUID and publisher metadata. Here, assign the proper unique app identity and republish using the corrected manifest and dependency references, because the al app manifest identifies an extension and its dependency/version contract across deployments.

D:

This correction is for the separate condition: A developer struggles to publish related warehouse and finance apps from different folders with inconsistent references. It would not directly restore the intended behavior in this situation: Two regional teams independently package different modules using the same app GUID and publisher metadata. Here, assign the proper unique app identity and republish using the corrected manifest and dependency references, because the al app manifest identifies an extension and its dependency/version contract across deployments.

Question 113

A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Install the AL Language extension in Visual Studio Code and initialize an AL project
  2. Download compatible Business Central application symbols for the project target
  3. Organize the AL workspace and explicit project dependencies for all related apps
  4. Align app.json runtime and application version settings with the actual target environment

Explanation

Correct Answer

A:

This targets the concrete requirement—A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. The team can establish success when al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Incorrect Answers

B:

This choice primarily fits a different requirement: A new extension references Sales Header fields but VS Code reports unresolved symbol definitions. There, al compilation resolves external object metadata from downloaded referenced app symbols. In the current situation, A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

C:

This choice primarily fits a different requirement: One repository contains a core library extension and two dependent customer-facing AL extensions but only one is built. There, a multi-project workspace enables coordinated editing while each app retains its own manifest and dependency definitions. In the current situation, A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

D:

This choice primarily fits a different requirement: A project compiles for a newer runtime than the customer's production Business Central service supports. There, al compiler and platform capability gates depend on declared runtime and referenced application versions. In the current situation, A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Question 114

A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The developer recommends the following change: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which technical explanation most directly justifies it in this case?

  1. AL compilation resolves external object metadata from downloaded referenced app symbols
  2. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration
  3. A multi-project workspace enables coordinated editing while each app retains its own manifest and dependency definitions
  4. AL compiler and platform capability gates depend on declared runtime and referenced application versions

Explanation

Correct Answer

B:

The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. It connects the proposed action to the exact failure or requirement—A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. Confirmation would be al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Incorrect Answers

A:

That mechanism explains why the alternative action—download compatible Business Central application symbols for the project target—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols.

C:

That mechanism explains why the alternative action—organize the al workspace and explicit project dependencies for all related apps—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols.

D:

That mechanism explains why the alternative action—align app.json runtime and application version settings with the actual target environment—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols.

Question 115

A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The team implemented a change aligned with this plan: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which acceptance result specifically verifies that the reported problem is resolved?

  1. The compiler resolves Sales Header or system library references and reports no missing-symbol errors
  2. Each package compiles with the expected dependency order and no ambiguous object references
  3. AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox
  4. The extension builds and publishes successfully against the target environment without unsupported feature errors

Explanation

Correct Answer

C:

AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox. This is stronger than an unrelated health check because the desired design action is install the al language extension in visual studio code and initialize an al project, and the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The local requirement is: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols.

Incorrect Answers

A:

This would verify download compatible Business Central application symbols for the project target, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

B:

This would verify organize the al workspace and explicit project dependencies for all related apps, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

D:

This would verify align app.json runtime and application version settings with the actual target environment, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Question 116

A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. A targeted trial still reproduces the original gap after the team attempted this change: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which repair directly addresses the remaining defect?

  1. Refresh the symbols from the correct environment and align app dependencies with the target versions
  2. Add the missing project to the workspace and align dependency identities and versions before the build
  3. Lower the unsupported language use or update the target platform through a planned supported path
  4. Install the AL tooling and reopen the workspace with its valid project and target settings

Explanation

Correct Answer

D:

Install the AL tooling and reopen the workspace with its valid project and target settings. This directly addresses the remaining defect for the requirement—A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. It restores the mechanism described here: the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

Incorrect Answers

A:

This correction is for the separate condition: A tester's project references an updated System Application API but keeps symbols downloaded from a different environment. It would not directly restore the intended behavior in this situation: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

B:

This correction is for the separate condition: A developer struggles to publish related warehouse and finance apps from different folders with inconsistent references. It would not directly restore the intended behavior in this situation: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

C:

This correction is for the separate condition: A developer uses a recent language feature in an extension targeted at an older supported on-premises deployment. It would not directly restore the intended behavior in this situation: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

Question 117

A support engineer edits .al files in a text editor and cannot compile or debug the extension. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Download compatible Business Central application symbols for the project target
  2. Install the AL Language extension in Visual Studio Code and initialize an AL project
  3. Organize the AL workspace and explicit project dependencies for all related apps
  4. Align app.json runtime and application version settings with the actual target environment

Explanation

Correct Answer

B:

This targets the concrete requirement—A support engineer edits .al files in a text editor and cannot compile or debug the extension. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. The team can establish success when al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Incorrect Answers

A:

This choice primarily fits a different requirement: A new extension references Sales Header fields but VS Code reports unresolved symbol definitions. There, al compilation resolves external object metadata from downloaded referenced app symbols. In the current situation, A support engineer edits .al files in a text editor and cannot compile or debug the extension. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

C:

This choice primarily fits a different requirement: One repository contains a core library extension and two dependent customer-facing AL extensions but only one is built. There, a multi-project workspace enables coordinated editing while each app retains its own manifest and dependency definitions. In the current situation, A support engineer edits .al files in a text editor and cannot compile or debug the extension. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

D:

This choice primarily fits a different requirement: A project compiles for a newer runtime than the customer's production Business Central service supports. There, al compiler and platform capability gates depend on declared runtime and referenced application versions. In the current situation, A support engineer edits .al files in a text editor and cannot compile or debug the extension. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. Acceptance requires al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Question 118

A support engineer edits .al files in a text editor and cannot compile or debug the extension. The developer recommends the following change: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which technical explanation most directly justifies it in this case?

  1. AL compilation resolves external object metadata from downloaded referenced app symbols
  2. A multi-project workspace enables coordinated editing while each app retains its own manifest and dependency definitions
  3. The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration
  4. AL compiler and platform capability gates depend on declared runtime and referenced application versions

Explanation

Correct Answer

C:

The supported development tooling provides AL syntax, project commands, symbol access, packaging, and debugging integration. It connects the proposed action to the exact failure or requirement—A support engineer edits .al files in a text editor and cannot compile or debug the extension. Confirmation would be al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Incorrect Answers

A:

That mechanism explains why the alternative action—download compatible Business Central application symbols for the project target—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A support engineer edits .al files in a text editor and cannot compile or debug the extension.

B:

That mechanism explains why the alternative action—organize the al workspace and explicit project dependencies for all related apps—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A support engineer edits .al files in a text editor and cannot compile or debug the extension.

D:

That mechanism explains why the alternative action—align app.json runtime and application version settings with the actual target environment—helps in another case. It does not justify the proposed fix here; the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The distinguishing requirement is: A support engineer edits .al files in a text editor and cannot compile or debug the extension.

Question 119

A support engineer edits .al files in a text editor and cannot compile or debug the extension. The team implemented a change aligned with this plan: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which acceptance result specifically verifies that the reported problem is resolved?

  1. The compiler resolves Sales Header or system library references and reports no missing-symbol errors
  2. Each package compiles with the expected dependency order and no ambiguous object references
  3. The extension builds and publishes successfully against the target environment without unsupported feature errors
  4. AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox

Explanation

Correct Answer

D:

AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox. This is stronger than an unrelated health check because the desired design action is install the al language extension in visual studio code and initialize an al project, and the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. The local requirement is: A support engineer edits .al files in a text editor and cannot compile or debug the extension.

Incorrect Answers

A:

This would verify download compatible Business Central application symbols for the project target, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A support engineer edits .al files in a text editor and cannot compile or debug the extension. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

B:

This would verify organize the al workspace and explicit project dependencies for all related apps, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A support engineer edits .al files in a text editor and cannot compile or debug the extension. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

C:

This would verify align app.json runtime and application version settings with the actual target environment, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A support engineer edits .al files in a text editor and cannot compile or debug the extension. The decisive local proof is al: go creates a project and the al compiler recognizes the objects in the target sandbox.

Question 120

A support engineer edits .al files in a text editor and cannot compile or debug the extension. A targeted trial still reproduces the original gap after the team attempted this change: Install the AL Language extension in Visual Studio Code and initialize an AL project. Which repair directly addresses the remaining defect?

  1. Install the AL tooling and reopen the workspace with its valid project and target settings
  2. Refresh the symbols from the correct environment and align app dependencies with the target versions
  3. Add the missing project to the workspace and align dependency identities and versions before the build
  4. Lower the unsupported language use or update the target platform through a planned supported path

Explanation

Correct Answer

A:

Install the AL tooling and reopen the workspace with its valid project and target settings. This directly addresses the remaining defect for the requirement—A support engineer edits .al files in a text editor and cannot compile or debug the extension. It restores the mechanism described here: the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

Incorrect Answers

B:

This correction is for the separate condition: A tester's project references an updated System Application API but keeps symbols downloaded from a different environment. It would not directly restore the intended behavior in this situation: A support engineer edits .al files in a text editor and cannot compile or debug the extension. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

C:

This correction is for the separate condition: A developer struggles to publish related warehouse and finance apps from different folders with inconsistent references. It would not directly restore the intended behavior in this situation: A support engineer edits .al files in a text editor and cannot compile or debug the extension. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.

D:

This correction is for the separate condition: A developer uses a recent language feature in an extension targeted at an older supported on-premises deployment. It would not directly restore the intended behavior in this situation: A support engineer edits .al files in a text editor and cannot compile or debug the extension. Here, install the al tooling and reopen the workspace with its valid project and target settings, because the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration.


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