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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 11

Question 100

An AL project compiles locally but publishes against the wrong tenant because its debug launch settings reference another environment. A targeted trial still reproduces the original gap after the team attempted this change: Correct launch.json environment, tenant, and authentication settings for the intended sandbox. Which repair directly addresses the remaining defect?

  1. Assign the proper unique app identity and republish using the corrected manifest and dependency references
  2. Install the AL tooling and reopen the workspace with its valid project and target settings
  3. Refresh the symbols from the correct environment and align app dependencies with the target versions
  4. Correct the launch target and credentials, then verify the environment identity before another publish

Explanation

Correct Answer

D:

Correct the launch target and credentials, then verify the environment identity before another publish. This directly addresses the remaining defect for the requirement—An AL project compiles locally but publishes against the wrong tenant because its debug launch settings reference another environment. It restores the mechanism described here: the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

Incorrect Answers

A:

This correction is for the separate condition: Two regional teams independently package different modules using the same app GUID and publisher metadata. It would not directly restore the intended behavior in this situation: An AL project compiles locally but publishes against the wrong tenant because its debug launch settings reference another environment. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

B:

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: An AL project compiles locally but publishes against the wrong tenant because its debug launch settings reference another environment. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

C:

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: An AL project compiles locally but publishes against the wrong tenant because its debug launch settings reference another environment. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

Question 101

A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Define a unique app ID and correct publisher/name/version metadata in app.json
  2. Correct launch.json environment, tenant, and authentication settings for the intended sandbox
  3. Install the AL Language extension in Visual Studio Code and initialize an AL project
  4. Download compatible Business Central application symbols for the project target

Explanation

Correct Answer

B:

This targets the concrete requirement—A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest. The team can establish success when the debugger attaches to the intended sandbox and no package is published into the other tenant.

Incorrect Answers

A:

This choice primarily fits a different requirement: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. There, the al app manifest identifies an extension and its dependency/version contract across deployments. In the current situation, A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest. Acceptance requires the debugger attaches to the intended sandbox and no package is published into the other tenant.

C:

This choice primarily fits a different requirement: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. There, the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. In the current situation, A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest. Acceptance requires the debugger attaches to the intended sandbox and no package is published into the other tenant.

D:

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 opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest. Acceptance requires the debugger attaches to the intended sandbox and no package is published into the other tenant.

Question 102

A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The developer recommends the following change: Correct launch.json environment, tenant, and authentication settings for the intended sandbox. 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. The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest
  4. AL compilation resolves external object metadata from downloaded referenced app symbols

Explanation

Correct Answer

C:

The launch configuration controls where VS Code connects for debugging and deployment, independently of the app manifest. It connects the proposed action to the exact failure or requirement—A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. Confirmation would be the debugger attaches to the intended sandbox and no package is published into the other tenant.

Incorrect Answers

A:

That mechanism explains why the alternative action—define a unique app id and correct publisher/name/version metadata in app.json—helps in another case. It does not justify the proposed fix here; the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest. The distinguishing requirement is: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging.

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 launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest. The distinguishing requirement is: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging.

D:

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 launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest. The distinguishing requirement is: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging.

Question 103

A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The team implemented a change aligned with this plan: Correct launch.json environment, tenant, and authentication settings for the intended sandbox. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Build and tenant app inventory show unique app identity and intended publisher with no conflict
  2. AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox
  3. The compiler resolves Sales Header or system library references and reports no missing-symbol errors
  4. The debugger attaches to the intended sandbox and no package is published into the other tenant

Explanation

Correct Answer

D:

The debugger attaches to the intended sandbox and no package is published into the other tenant. This is stronger than an unrelated health check because the desired design action is correct launch.json environment, tenant, and authentication settings for the intended sandbox, and the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest. The local requirement is: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging.

Incorrect Answers

A:

This would verify define a unique app id and correct publisher/name/version metadata in app.json, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The decisive local proof is the debugger attaches to the intended sandbox and no package is published into the other tenant.

B:

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: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The decisive local proof is the debugger attaches to the intended sandbox and no package is published into the other tenant.

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: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. The decisive local proof is the debugger attaches to the intended sandbox and no package is published into the other tenant.

Question 104

A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. A targeted trial still reproduces the original gap after the team attempted this change: Correct launch.json environment, tenant, and authentication settings for the intended sandbox. Which repair directly addresses the remaining defect?

  1. Correct the launch target and credentials, then verify the environment identity before another publish
  2. Assign the proper unique app identity and republish using the corrected manifest and dependency references
  3. Install the AL tooling and reopen the workspace with its valid project and target settings
  4. Refresh the symbols from the correct environment and align app dependencies with the target versions

Explanation

Correct Answer

A:

Correct the launch target and credentials, then verify the environment identity before another publish. This directly addresses the remaining defect for the requirement—A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. It restores the mechanism described here: the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

Incorrect Answers

B:

This correction is for the separate condition: Two regional teams independently package different modules using the same app GUID and publisher metadata. It would not directly restore the intended behavior in this situation: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

C:

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: A developer opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

D:

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 opens a second customer project and accidentally uses an outdated Business Central sandbox URL during F5 debugging. Here, correct the launch target and credentials, then verify the environment identity before another publish, because the launch configuration controls where vs code connects for debugging and deployment, independently of the app manifest.

Question 105

A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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. Define a unique app ID and correct publisher/name/version metadata in app.json
  4. Organize the AL workspace and explicit project dependencies for all related apps

Explanation

Correct Answer

C:

This targets the concrete requirement—A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. The AL app manifest identifies an extension and its dependency/version contract across deployments. The team can establish success when build and tenant app inventory show unique app identity and intended publisher with no conflict.

Incorrect Answers

A:

This choice primarily fits a different requirement: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. There, the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. In the current situation, A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

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 new AL extension uses a publisher ID and app identity copied from another product, causing package collision. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

D:

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 new AL extension uses a publisher ID and app identity copied from another product, causing package collision. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

Question 106

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

Explanation

Correct Answer

D:

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—A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. Confirmation would be build and tenant app inventory show unique app identity and intended publisher with no conflict.

Incorrect Answers

A:

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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision.

B:

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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision.

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 al app manifest identifies an extension and its dependency/version contract across deployments. The distinguishing requirement is: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision.

Question 107

A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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. Build and tenant app inventory show unique app identity and intended publisher with no conflict
  2. AL: Go creates a project and the AL compiler recognizes the objects in the target sandbox
  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

A:

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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision.

Incorrect Answers

B:

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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. The decisive local proof is build and tenant app inventory show unique app identity and intended publisher with no conflict.

Question 108

A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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. Assign the proper unique app identity and republish using the corrected manifest and dependency references
  3. Refresh the symbols from the correct environment and align app dependencies with the target versions
  4. Add the missing project to the workspace and align dependency identities and versions before the build

Explanation

Correct Answer

B:

Assign the proper unique app identity and republish using the corrected manifest and dependency references. This directly addresses the remaining defect for the requirement—A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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.

C:

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 new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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: A new AL extension uses a publisher ID and app identity copied from another product, causing package collision. 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 109

Two regional teams independently package different modules using the same app GUID and publisher metadata. 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. Define a unique app ID and correct publisher/name/version metadata in app.json

Explanation

Correct Answer

D:

This targets the concrete requirement—Two regional teams independently package different modules using the same app GUID and publisher metadata. The AL app manifest identifies an extension and its dependency/version contract across deployments. The team can establish success when build and tenant app inventory show unique app identity and intended publisher with no conflict.

Incorrect Answers

A:

This choice primarily fits a different requirement: A developer's VS Code lacks the AL Language extension and cannot create AL objects or download symbols. There, the supported development tooling provides al syntax, project commands, symbol access, packaging, and debugging integration. In the current situation, Two regional teams independently package different modules using the same app GUID and publisher metadata. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

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, Two regional teams independently package different modules using the same app GUID and publisher metadata. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

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, Two regional teams independently package different modules using the same app GUID and publisher metadata. The AL app manifest identifies an extension and its dependency/version contract across deployments. Acceptance requires build and tenant app inventory show unique app identity and intended publisher with no conflict.

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.


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