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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 49

Question 480

An inventory extension performs repetitive database calls to create a simple grouped stock summary. A targeted trial still reproduces the original gap after the team attempted this change: Evaluate replacing the record loop with a database-backed query and aggregation. Which repair directly addresses the remaining defect?

  1. Route writes to the appropriate API page and remove mutating assumptions from the query endpoint
  2. Fix the query DataItemLink and SQL join semantics before adding more AL record loops
  3. Refactor the record traversal to a query with correct aggregation and benchmark the filtered result
  4. Correct Method and grouping definitions so aggregations use the intended records

Explanation

Correct Answer

C:

Refactor the record traversal to a query with correct aggregation and benchmark the filtered result. This directly addresses the remaining defect for the requirement—An inventory extension performs repetitive database calls to create a simple grouped stock summary. It restores the mechanism described here: queries can move joins and grouping nearer the data source and reduce redundant al record iterations.

Incorrect Answers

A:

This correction is for the separate condition: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. It would not directly restore the intended behavior in this situation: An inventory extension performs repetitive database calls to create a simple grouped stock summary. Here, refactor the record traversal to a query with correct aggregation and benchmark the filtered result, because queries can move joins and grouping nearer the data source and reduce redundant al record iterations.

B:

This correction is for the separate condition: A purchasing dashboard needs vendor details joined with the relevant purchase lines for quick analysis. It would not directly restore the intended behavior in this situation: An inventory extension performs repetitive database calls to create a simple grouped stock summary. Here, refactor the record traversal to a query with correct aggregation and benchmark the filtered result, because queries can move joins and grouping nearer the data source and reduce redundant al record iterations.

D:

This correction is for the separate condition: An analyst needs grouped revenue totals by region from existing posted transactions. It would not directly restore the intended behavior in this situation: An inventory extension performs repetitive database calls to create a simple grouped stock summary. Here, refactor the record traversal to a query with correct aggregation and benchmark the filtered result, because queries can move joins and grouping nearer the data source and reduce redundant al record iterations.

Question 481

An API query joins several dimensions but the client tries to use it to submit a purchase document. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Separate read-only API query responsibilities from write-capable API page endpoints
  2. Create a query object with linked dataitems and explicit join relationships
  3. Define query columns with aggregation methods and appropriate grouping
  4. Apply the right filters to query dataitems or columns before aggregation

Explanation

Correct Answer

A:

This targets the concrete requirement—An API query joins several dimensions but the client tries to use it to submit a purchase document. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. The team can establish success when get succeeds on the query and writes are routed through a separately authorized api page.

Incorrect Answers

B:

This choice primarily fits a different requirement: A reporting team needs a joined view of customers and their invoices without iterating each customer in AL code. There, query dataitems define the tables and links for one combined rowset of related records. In the current situation, An API query joins several dimensions but the client tries to use it to submit a purchase document. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

C:

This choice primarily fits a different requirement: A product manager needs total shipped quantity per item without manually updating a total field. There, query column aggregations calculate summary values from the selected dataset instead of storing duplicate totals. In the current situation, An API query joins several dimensions but the client tries to use it to submit a purchase document. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

D:

This choice primarily fits a different requirement: A month-end reconciliation should include only posted transactions from the fiscal period. There, query filters reduce the source rowset so subsequent joins and aggregates operate on relevant records. In the current situation, An API query joins several dimensions but the client tries to use it to submit a purchase document. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

Question 482

An API query joins several dimensions but the client tries to use it to submit a purchase document. The developer recommends the following change: Separate read-only API query responsibilities from write-capable API page endpoints. Which technical explanation most directly justifies it in this case?

  1. Query dataitems define the tables and links for one combined rowset of related records
  2. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules
  3. Query column aggregations calculate summary values from the selected dataset instead of storing duplicate totals
  4. Query filters reduce the source rowset so subsequent joins and aggregates operate on relevant records

Explanation

Correct Answer

B:

API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. It connects the proposed action to the exact failure or requirement—An API query joins several dimensions but the client tries to use it to submit a purchase document. Confirmation would be get succeeds on the query and writes are routed through a separately authorized api page.

Incorrect Answers

A:

That mechanism explains why the alternative action—create a query object with linked dataitems and explicit join relationships—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: An API query joins several dimensions but the client tries to use it to submit a purchase document.

C:

That mechanism explains why the alternative action—define query columns with aggregation methods and appropriate grouping—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: An API query joins several dimensions but the client tries to use it to submit a purchase document.

D:

That mechanism explains why the alternative action—apply the right filters to query dataitems or columns before aggregation—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: An API query joins several dimensions but the client tries to use it to submit a purchase document.

Question 483

An API query joins several dimensions but the client tries to use it to submit a purchase document. The team implemented a change aligned with this plan: Separate read-only API query responsibilities from write-capable API page endpoints. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Sample joined output contains correct child rows per parent without Cartesian multiplication
  2. Query sums and grouped counts match independently calculated ledger totals on a fixture dataset
  3. GET succeeds on the query and writes are routed through a separately authorized API page
  4. Results exclude records outside the filter and totals match the same filtered scope

Explanation

Correct Answer

C:

GET succeeds on the query and writes are routed through a separately authorized API page. This is stronger than an unrelated health check because the desired design action is separate read-only api query responsibilities from write-capable api page endpoints, and api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The local requirement is: An API query joins several dimensions but the client tries to use it to submit a purchase document.

Incorrect Answers

A:

This would verify create a query object with linked dataitems and explicit join relationships, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: An API query joins several dimensions but the client tries to use it to submit a purchase document. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

B:

This would verify define query columns with aggregation methods and appropriate grouping, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: An API query joins several dimensions but the client tries to use it to submit a purchase document. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

D:

This would verify apply the right filters to query dataitems or columns before aggregation, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: An API query joins several dimensions but the client tries to use it to submit a purchase document. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

Question 484

An API query joins several dimensions but the client tries to use it to submit a purchase document. A targeted trial still reproduces the original gap after the team attempted this change: Separate read-only API query responsibilities from write-capable API page endpoints. Which repair directly addresses the remaining defect?

  1. Fix the query DataItemLink and SQL join semantics before adding more AL record loops
  2. Correct Method and grouping definitions so aggregations use the intended records
  3. Repair filters and their placement in the query object, then rerun the constrained fixture
  4. Route writes to the appropriate API page and remove mutating assumptions from the query endpoint

Explanation

Correct Answer

D:

Route writes to the appropriate API page and remove mutating assumptions from the query endpoint. This directly addresses the remaining defect for the requirement—An API query joins several dimensions but the client tries to use it to submit a purchase document. It restores the mechanism described here: api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

Incorrect Answers

A:

This correction is for the separate condition: A purchasing dashboard needs vendor details joined with the relevant purchase lines for quick analysis. It would not directly restore the intended behavior in this situation: An API query joins several dimensions but the client tries to use it to submit a purchase document. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

B:

This correction is for the separate condition: An analyst needs grouped revenue totals by region from existing posted transactions. It would not directly restore the intended behavior in this situation: An API query joins several dimensions but the client tries to use it to submit a purchase document. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

C:

This correction is for the separate condition: A warehouse query must return only open records for one location and document status. It would not directly restore the intended behavior in this situation: An API query joins several dimensions but the client tries to use it to submit a purchase document. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

Question 485

A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Create a query object with linked dataitems and explicit join relationships
  2. Separate read-only API query responsibilities from write-capable API page endpoints
  3. Define query columns with aggregation methods and appropriate grouping
  4. Apply the right filters to query dataitems or columns before aggregation

Explanation

Correct Answer

B:

This targets the concrete requirement—A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. The team can establish success when get succeeds on the query and writes are routed through a separately authorized api page.

Incorrect Answers

A:

This choice primarily fits a different requirement: A reporting team needs a joined view of customers and their invoices without iterating each customer in AL code. There, query dataitems define the tables and links for one combined rowset of related records. In the current situation, A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

C:

This choice primarily fits a different requirement: A product manager needs total shipped quantity per item without manually updating a total field. There, query column aggregations calculate summary values from the selected dataset instead of storing duplicate totals. In the current situation, A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

D:

This choice primarily fits a different requirement: A month-end reconciliation should include only posted transactions from the fiscal period. There, query filters reduce the source rowset so subsequent joins and aggregates operate on relevant records. In the current situation, A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. Acceptance requires get succeeds on the query and writes are routed through a separately authorized api page.

Question 486

A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. The developer recommends the following change: Separate read-only API query responsibilities from write-capable API page endpoints. Which technical explanation most directly justifies it in this case?

  1. Query dataitems define the tables and links for one combined rowset of related records
  2. Query column aggregations calculate summary values from the selected dataset instead of storing duplicate totals
  3. API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules
  4. Query filters reduce the source rowset so subsequent joins and aggregates operate on relevant records

Explanation

Correct Answer

C:

API query objects do not provide entity CRUD; writable entities require an appropriate API page and business rules. It connects the proposed action to the exact failure or requirement—A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. Confirmation would be get succeeds on the query and writes are routed through a separately authorized api page.

Incorrect Answers

A:

That mechanism explains why the alternative action—create a query object with linked dataitems and explicit join relationships—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records.

B:

That mechanism explains why the alternative action—define query columns with aggregation methods and appropriate grouping—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records.

D:

That mechanism explains why the alternative action—apply the right filters to query dataitems or columns before aggregation—helps in another case. It does not justify the proposed fix here; api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The distinguishing requirement is: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records.

Question 487

A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. The team implemented a change aligned with this plan: Separate read-only API query responsibilities from write-capable API page endpoints. Which acceptance result specifically verifies that the reported problem is resolved?

  1. Sample joined output contains correct child rows per parent without Cartesian multiplication
  2. Query sums and grouped counts match independently calculated ledger totals on a fixture dataset
  3. Results exclude records outside the filter and totals match the same filtered scope
  4. GET succeeds on the query and writes are routed through a separately authorized API page

Explanation

Correct Answer

D:

GET succeeds on the query and writes are routed through a separately authorized API page. This is stronger than an unrelated health check because the desired design action is separate read-only api query responsibilities from write-capable api page endpoints, and api query objects do not provide entity crud; writable entities require an appropriate api page and business rules. The local requirement is: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records.

Incorrect Answers

A:

This would verify create a query object with linked dataitems and explicit join relationships, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

B:

This would verify define query columns with aggregation methods and appropriate grouping, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

C:

This would verify apply the right filters to query dataitems or columns before aggregation, which addresses a different engineering need. It does not demonstrate that the current issue is resolved: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. The decisive local proof is get succeeds on the query and writes are routed through a separately authorized api page.

Question 488

A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. A targeted trial still reproduces the original gap after the team attempted this change: Separate read-only API query responsibilities from write-capable API page endpoints. Which repair directly addresses the remaining defect?

  1. Route writes to the appropriate API page and remove mutating assumptions from the query endpoint
  2. Fix the query DataItemLink and SQL join semantics before adding more AL record loops
  3. Correct Method and grouping definitions so aggregations use the intended records
  4. Repair filters and their placement in the query object, then rerun the constrained fixture

Explanation

Correct Answer

A:

Route writes to the appropriate API page and remove mutating assumptions from the query endpoint. This directly addresses the remaining defect for the requirement—A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. It restores the mechanism described here: api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

Incorrect Answers

B:

This correction is for the separate condition: A purchasing dashboard needs vendor details joined with the relevant purchase lines for quick analysis. It would not directly restore the intended behavior in this situation: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

C:

This correction is for the separate condition: An analyst needs grouped revenue totals by region from existing posted transactions. It would not directly restore the intended behavior in this situation: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

D:

This correction is for the separate condition: A warehouse query must return only open records for one location and document status. It would not directly restore the intended behavior in this situation: A partner exposes an aggregated API query and expects PATCH and POST operations to update source records. Here, route writes to the appropriate api page and remove mutating assumptions from the query endpoint, because api query objects do not provide entity crud; writable entities require an appropriate api page and business rules.

Question 489

A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Which single AL development or architecture change best resolves this requirement without redesigning unrelated workflows?

  1. Publish an appropriate saved view over the existing page with the desired filters
  2. Add contextual teaching tips or help links to the new page controls
  3. Define the appropriate AL profile with the intended Role Center assignment
  4. Integrate an assisted setup flow that guides administrators through required configuration steps

Explanation

Correct Answer

C:

This targets the concrete requirement—A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Profiles determine a role-oriented user experience and which Role Center is associated with that role. The team can establish success when the test user selects the profile and sees the intended home-page cues and navigation.

Incorrect Answers

A:

This choice primarily fits a different requirement: A sales manager repeatedly re-enters filters to show only orders requiring manager review. There, Business Central views provide reusable filtered or sorted presentations of existing data without a new table. In the current situation, A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Profiles determine a role-oriented user experience and which Role Center is associated with that role. Acceptance requires the test user selects the profile and sees the intended home-page cues and navigation.

B:

This choice primarily fits a different requirement: New users repeatedly misinterpret the meaning of a custom surcharge field on a sales order page. There, contextual assistance explains a control when the user encounters it without making them search a separate manual. In the current situation, A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Profiles determine a role-oriented user experience and which Role Center is associated with that role. Acceptance requires the test user selects the profile and sees the intended home-page cues and navigation.

D:

This choice primarily fits a different requirement: A tenant has a multistep connection setup for an external shipment service, and new admins miss a required credential step. There, assisted setup supports a sequence of configuration tasks and reduces omissions during initial activation. In the current situation, A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Profiles determine a role-oriented user experience and which Role Center is associated with that role. Acceptance requires the test user selects the profile and sees the intended home-page cues and navigation.

Question 490

A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. The developer recommends the following change: Define the appropriate AL profile with the intended Role Center assignment. Which technical explanation most directly justifies it in this case?

  1. Business Central views provide reusable filtered or sorted presentations of existing data without a new table
  2. Contextual assistance explains a control when the user encounters it without making them search a separate manual
  3. Assisted setup supports a sequence of configuration tasks and reduces omissions during initial activation
  4. Profiles determine a role-oriented user experience and which Role Center is associated with that role

Explanation

Correct Answer

D:

Profiles determine a role-oriented user experience and which Role Center is associated with that role. It connects the proposed action to the exact failure or requirement—A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view. Confirmation would be the test user selects the profile and sees the intended home-page cues and navigation.

Incorrect Answers

A:

That mechanism explains why the alternative action—publish an appropriate saved view over the existing page with the desired filters—helps in another case. It does not justify the proposed fix here; profiles determine a role-oriented user experience and which role center is associated with that role. The distinguishing requirement is: A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view.

B:

That mechanism explains why the alternative action—add contextual teaching tips or help links to the new page controls—helps in another case. It does not justify the proposed fix here; profiles determine a role-oriented user experience and which role center is associated with that role. The distinguishing requirement is: A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view.

C:

That mechanism explains why the alternative action—integrate an assisted setup flow that guides administrators through required configuration steps—helps in another case. It does not justify the proposed fix here; profiles determine a role-oriented user experience and which role center is associated with that role. The distinguishing requirement is: A warehouse clerk wants the landing screen and navigation tailored to the stock-receipt role instead of the default finance view.


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