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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

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Microsoft MB-820 Practice Test 80

Question 790

A logistics integration must request a controlled operation that applies business validation to an existing record. The developer recommends the following change: Expose a suitable bound OData action with business logic for the target entity. Which technical explanation most directly justifies it in this case?

  1. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it
  2. API pages provide versioned RESTful OData endpoints supporting entity CRUD for a source table
  3. A bound action associates an operation with a specific entity and executes logic beyond direct field CRUD
  4. API queries support versioned read-only REST datasets including joins or aggregation across relevant dataitems

Explanation

Correct Answer

C:

A bound action associates an operation with a specific entity and executes logic beyond direct field CRUD. It connects the proposed action to the exact failure or requirement—A logistics integration must request a controlled operation that applies business validation to an existing record. Confirmation would be calling the action against a permitted record runs the intended validation and returns the expected response.

Incorrect Answers

A:

That mechanism explains why the alternative action—evaluate supported read scale-out configuration for compatible Business Central api read traffic—helps in another case. It does not justify the proposed fix here; a bound action associates an operation with a specific entity and executes logic beyond direct field crud. The distinguishing requirement is: A logistics integration must request a controlled operation that applies business validation to an existing record.

B:

That mechanism explains why the alternative action—create an appropriate pagetype api page with stable publisher, group, version and entity definitions—helps in another case. It does not justify the proposed fix here; a bound action associates an operation with a specific entity and executes logic beyond direct field crud. The distinguishing requirement is: A logistics integration must request a controlled operation that applies business validation to an existing record.

D:

That mechanism explains why the alternative action—use an api query object for read-only combined or aggregated data exposure—helps in another case. It does not justify the proposed fix here; a bound action associates an operation with a specific entity and executes logic beyond direct field crud. The distinguishing requirement is: A logistics integration must request a controlled operation that applies business validation to an existing record.

Question 791

A logistics integration must request a controlled operation that applies business validation to an existing record. The team implemented a change aligned with this plan: Expose a suitable bound OData action with business logic for the target entity. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Supported read-only requests return consistent allowed data while primary write operations remain on the proper path
  2. Authorized GET, POST and PATCH tests satisfy the endpoint's entity contract and enforced business rules
  3. The endpoint returns expected joined or grouped records and does not offer mutation semantics
  4. Calling the action against a permitted record runs the intended validation and returns the expected response

Explanation

Correct Answer

D:

Calling the action against a permitted record runs the intended validation and returns the expected response. This is stronger than an unrelated health check because the desired design action is expose a suitable bound odata action with business logic for the target entity, and a bound action associates an operation with a specific entity and executes logic beyond direct field crud. The local requirement is: A logistics integration must request a controlled operation that applies business validation to an existing record.

Incorrect Answers

A:

This would verify evaluate supported read scale-out configuration for compatible Business Central api read traffic, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A logistics integration must request a controlled operation that applies business validation to an existing record. The decisive local proof is calling the action against a permitted record runs the intended validation and returns the expected response.

B:

This would verify create an appropriate pagetype api page with stable publisher, group, version and entity definitions, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A logistics integration must request a controlled operation that applies business validation to an existing record. The decisive local proof is calling the action against a permitted record runs the intended validation and returns the expected response.

C:

This would verify use an api query object for read-only combined or aggregated data exposure, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A logistics integration must request a controlled operation that applies business validation to an existing record. The decisive local proof is calling the action against a permitted record runs the intended validation and returns the expected response.

Question 792

A logistics integration must request a controlled operation that applies business validation to an existing record. A targeted trial still reproduces the original gap after the team attempted this change: Expose a suitable bound OData action with business logic for the target entity. Which repair directly addresses the remaining defect?

  1. Correct the bound action registration and handler implementation so it targets the record safely
  2. Correct the API read-only configuration and workload routing, and verify platform-specific read-scale-out support
  3. Define a new API page with the correct entity properties and operations instead of extending a standard API page
  4. Replace a write-oriented API page design with a properly structured API query and correct grouping

Explanation

Correct Answer

A:

Correct the bound action registration and handler implementation so it targets the record safely. This directly addresses the remaining defect for the requirement—A logistics integration must request a controlled operation that applies business validation to an existing record. It restores the mechanism described here: a bound action associates an operation with a specific entity and executes logic beyond direct field crud.

Incorrect Answers

B:

This correction is for the separate condition: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. It would not directly restore the intended behavior in this situation: A logistics integration must request a controlled operation that applies business validation to an existing record. Here, correct the bound action registration and handler implementation so it targets the record safely, because a bound action associates an operation with a specific entity and executes logic beyond direct field crud.

C:

This correction is for the separate condition: A field service app needs a writable Business Central API for an extension's custom maintenance records. It would not directly restore the intended behavior in this situation: A logistics integration must request a controlled operation that applies business validation to an existing record. Here, correct the bound action registration and handler implementation so it targets the record safely, because a bound action associates an operation with a specific entity and executes logic beyond direct field crud.

D:

This correction is for the separate condition: An external dashboard wants grouped sales totals from several tables but no write access through the endpoint. It would not directly restore the intended behavior in this situation: A logistics integration must request a controlled operation that applies business validation to an existing record. Here, correct the bound action registration and handler implementation so it targets the record safely, because a bound action associates an operation with a specific entity and executes logic beyond direct field crud.

Question 793

A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Create an appropriate PageType API page with stable publisher, group, version and entity definitions
  2. Use an API query object for read-only combined or aggregated data exposure
  3. Evaluate supported read scale-out configuration for compatible Business Central API read traffic
  4. Maintain explicit API versions and add a new compatible API version for the changed contract

Explanation

Correct Answer

C:

This targets the concrete requirement—A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The team can establish success when supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Incorrect Answers

A:

This choice primarily fits a different requirement: A customer-facing system needs a versioned Business Central REST endpoint to create and update shipment confirmation records. There, api pages provide versioned restful odata endpoints supporting entity crud for a source table. In the current situation, A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

B:

This choice primarily fits a different requirement: An external BI platform needs joined purchase and vendor values as read-only aggregated data over REST. There, api queries support versioned read-only rest datasets including joins or aggregation across relevant dataitems. In the current situation, A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

D:

This choice primarily fits a different requirement: An extension releases a breaking response-shape change and existing API clients must remain on the previous contract. There, published api versions allow consumers to migrate deliberately without silently breaking existing calls. In the current situation, A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Question 794

A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. The developer recommends the following change: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which technical explanation most directly justifies it in this case?

  1. API pages provide versioned RESTful OData endpoints supporting entity CRUD for a source table
  2. API queries support versioned read-only REST datasets including joins or aggregation across relevant dataitems
  3. Published API versions allow consumers to migrate deliberately without silently breaking existing calls
  4. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it

Explanation

Correct Answer

D:

Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. It connects the proposed action to the exact failure or requirement—A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Confirmation would be supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Incorrect Answers

A:

That mechanism explains why the alternative action—create an appropriate pagetype api page with stable publisher, group, version and entity definitions—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries.

B:

That mechanism explains why the alternative action—use an api query object for read-only combined or aggregated data exposure—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries.

C:

That mechanism explains why the alternative action—maintain explicit api versions and add a new compatible api version for the changed contract—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries.

Question 795

A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. The team implemented a change aligned with this plan: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Supported read-only requests return consistent allowed data while primary write operations remain on the proper path
  2. Authorized GET, POST and PATCH tests satisfy the endpoint's entity contract and enforced business rules
  3. The endpoint returns expected joined or grouped records and does not offer mutation semantics
  4. Both approved versions return the documented shapes while clients can opt in to the new version

Explanation

Correct Answer

A:

Supported read-only requests return consistent allowed data while primary write operations remain on the proper path. This is stronger than an unrelated health check because the desired design action is evaluate supported read scale-out configuration for compatible Business Central api read traffic, and read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The local requirement is: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries.

Incorrect Answers

B:

This would verify create an appropriate pagetype api page with stable publisher, group, version and entity definitions, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

C:

This would verify use an api query object for read-only combined or aggregated data exposure, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

D:

This would verify maintain explicit api versions and add a new compatible api version for the changed contract, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Question 796

A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. A targeted trial still reproduces the original gap after the team attempted this change: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which repair directly addresses the remaining defect?

  1. Define a new API page with the correct entity properties and operations instead of extending a standard API page
  2. Correct the API read-only configuration and workload routing, and verify platform-specific read-scale-out support
  3. Replace a write-oriented API page design with a properly structured API query and correct grouping
  4. Restore the old contract and publish the changed schema through a distinct supported API version

Explanation

Correct Answer

B:

Correct the API read-only configuration and workload routing, and verify platform-specific read-scale-out support. This directly addresses the remaining defect for the requirement—A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. It restores the mechanism described here: read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

Incorrect Answers

A:

This correction is for the separate condition: A field service app needs a writable Business Central API for an extension's custom maintenance records. It would not directly restore the intended behavior in this situation: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

C:

This correction is for the separate condition: An external dashboard wants grouped sales totals from several tables but no write access through the endpoint. It would not directly restore the intended behavior in this situation: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

D:

This correction is for the separate condition: A shipping integration adds new fields but a legacy partner still depends on the old endpoint contract. It would not directly restore the intended behavior in this situation: A high-volume external reporting client produces unnecessary primary-database load with read-heavy API queries. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

Question 797

A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Create an appropriate PageType API page with stable publisher, group, version and entity definitions
  2. Use an API query object for read-only combined or aggregated data exposure
  3. Maintain explicit API versions and add a new compatible API version for the changed contract
  4. Evaluate supported read scale-out configuration for compatible Business Central API read traffic

Explanation

Correct Answer

D:

This targets the concrete requirement—A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The team can establish success when supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Incorrect Answers

A:

This choice primarily fits a different requirement: A customer-facing system needs a versioned Business Central REST endpoint to create and update shipment confirmation records. There, api pages provide versioned restful odata endpoints supporting entity crud for a source table. In the current situation, A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

B:

This choice primarily fits a different requirement: An external BI platform needs joined purchase and vendor values as read-only aggregated data over REST. There, api queries support versioned read-only rest datasets including joins or aggregation across relevant dataitems. In the current situation, A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

C:

This choice primarily fits a different requirement: An extension releases a breaking response-shape change and existing API clients must remain on the previous contract. There, published api versions allow consumers to migrate deliberately without silently breaking existing calls. In the current situation, A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. Acceptance requires supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Question 798

A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. The developer recommends the following change: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which technical explanation most directly justifies it in this case?

  1. Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it
  2. API pages provide versioned RESTful OData endpoints supporting entity CRUD for a source table
  3. API queries support versioned read-only REST datasets including joins or aggregation across relevant dataitems
  4. Published API versions allow consumers to migrate deliberately without silently breaking existing calls

Explanation

Correct Answer

A:

Read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. It connects the proposed action to the exact failure or requirement—A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Confirmation would be supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Incorrect Answers

B:

That mechanism explains why the alternative action—create an appropriate pagetype api page with stable publisher, group, version and entity definitions—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported.

C:

That mechanism explains why the alternative action—use an api query object for read-only combined or aggregated data exposure—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported.

D:

That mechanism explains why the alternative action—maintain explicit api versions and add a new compatible api version for the changed contract—helps in another case. It does not justify the proposed fix here; read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The distinguishing requirement is: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported.

Question 799

A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. The team implemented a change aligned with this plan: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Authorized GET, POST and PATCH tests satisfy the endpoint's entity contract and enforced business rules
  2. Supported read-only requests return consistent allowed data while primary write operations remain on the proper path
  3. The endpoint returns expected joined or grouped records and does not offer mutation semantics
  4. Both approved versions return the documented shapes while clients can opt in to the new version

Explanation

Correct Answer

B:

Supported read-only requests return consistent allowed data while primary write operations remain on the proper path. This is stronger than an unrelated health check because the desired design action is evaluate supported read scale-out configuration for compatible Business Central api read traffic, and read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it. The local requirement is: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported.

Incorrect Answers

A:

This would verify create an appropriate pagetype api page with stable publisher, group, version and entity definitions, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

C:

This would verify use an api query object for read-only combined or aggregated data exposure, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

D:

This would verify maintain explicit api versions and add a new compatible api version for the changed contract, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. The decisive local proof is supported read-only requests return consistent allowed data while primary write operations remain on the proper path.

Question 800

A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. A targeted trial still reproduces the original gap after the team attempted this change: Evaluate supported read scale-out configuration for compatible Business Central API read traffic. Which repair directly addresses the remaining defect?

  1. Define a new API page with the correct entity properties and operations instead of extending a standard API page
  2. Replace a write-oriented API page design with a properly structured API query and correct grouping
  3. Correct the API read-only configuration and workload routing, and verify platform-specific read-scale-out support
  4. Restore the old contract and publish the changed schema through a distinct supported API version

Explanation

Correct Answer

C:

Correct the API read-only configuration and workload routing, and verify platform-specific read-scale-out support. This directly addresses the remaining defect for the requirement—A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. It restores the mechanism described here: read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

Incorrect Answers

A:

This correction is for the separate condition: A field service app needs a writable Business Central API for an extension's custom maintenance records. It would not directly restore the intended behavior in this situation: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

B:

This correction is for the separate condition: An external dashboard wants grouped sales totals from several tables but no write access through the endpoint. It would not directly restore the intended behavior in this situation: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.

D:

This correction is for the separate condition: A shipping integration adds new fields but a legacy partner still depends on the old endpoint contract. It would not directly restore the intended behavior in this situation: A finance analytics integration wants to read committed reporting data from an appropriate secondary replica where supported. Here, correct the api read-only configuration and workload routing, and verify platform-specific read-scale-out support, because read scale-out can direct suitable read requests to a secondary database replica where the deployment supports it.


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