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Exam Code: PL-300

Exam Name Microsoft Power BI Data Analyst

Certification Provider: Microsoft

Corresponding Certification: Microsoft Certified: Power BI Data Analyst Associate

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Microsoft PL-300 Practice Test 16

Question 150

A Power BI team has selected this approach: Unpivot language-specific name fields into Language and ProductName rows. The original business context is: A sales dimension table has two separate columns for English and German product names but a locale dimension is preferred. What evidence most directly verifies that the requirement is satisfied?

  1. Loaded tables omit unnecessary text while all required analytical fields remain.
  2. The output contains the expected named attribute columns for each entity.
  3. Every intended transaction matches the corresponding calendar date without time mismatches.
  4. The result supports language filtering without proliferating name columns.

Explanation

Correct Answer

D:

The result supports language filtering without proliferating name columns. It provides the required observation for the chosen implementation: Unpivot language-specific name fields into Language and ProductName rows. This test addresses the stated business constraint directly.

Incorrect Answers

A:

Loaded tables omit unnecessary text while all required analytical fields remain. That check would be meaningful for the separate case: A fact query includes columns for note text and debug payloads that reports never use. It would not directly verify this scenario's selected implementation: Unpivot language-specific name fields into Language and ProductName rows.

B:

The output contains the expected named attribute columns for each entity. That check would be meaningful for the separate case: A key-value table lists attributes in rows but the model needs each attribute as a field. It would not directly verify this scenario's selected implementation: Unpivot language-specific name fields into Language and ProductName rows.

C:

Every intended transaction matches the corresponding calendar date without time mismatches. That check would be meaningful for the separate case: A semantic model's fact table uses date-time stamps but needs to relate to a day-grain Date dimension. It would not directly verify this scenario's selected implementation: Unpivot language-specific name fields into Language and ProductName rows.

Question 151

A Power Query dataflow output is reused by many downstream queries but transformations must not create a circular reference. Which modeling or report-design decision most directly resolves this situation?

  1. Group by CostCenter and FinancialYear with Sum over Amount.
  2. Arrange base and referenced queries as an acyclic dependency chain.
  3. Unpivot the priority count columns to Priority and Count rows.
  4. Set a fixed decimal or decimal number type appropriate to monetary calculations.

Explanation

Correct Answer

B:

Arrange base and referenced queries as an acyclic dependency chain. This targets the specific requirement described for this Power BI scenario. The corresponding acceptance check is: The query-dependency view contains no cycles and all enabled outputs refresh.

Incorrect Answers

A:

'Group by CostCenter and FinancialYear with Sum over Amount' addresses the mechanism measured by 'Each group has one row with the independently checked sum of its expenses'. The current outcome is 'The query-dependency view contains no cycles and all enabled outputs refresh' after 'Arrange base and referenced queries as an acyclic dependency chain', which the distractor leaves unverified.

C:

'A slicer can select one priority and filter its numeric count consistently' would demonstrate 'Unpivot the priority count columns to Priority and Count rows', but not 'The query-dependency view contains no cycles and all enabled outputs refresh'. The latter requires 'Arrange base and referenced queries as an acyclic dependency chain' in this scenario.

D:

Using 'Set a fixed decimal or decimal number type appropriate to monetary calculations' supports the result 'Sample values retain their required fractional precision after load'. It does not implement 'Arrange base and referenced queries as an acyclic dependency chain' or prove 'The query-dependency view contains no cycles and all enabled outputs refresh' for this question.

Question 152

A Power BI team has selected this approach: Arrange base and referenced queries as an acyclic dependency chain. The original business context is: A Power Query dataflow output is reused by many downstream queries but transformations must not create a circular reference. Which acceptance test best demonstrates the intended outcome?

  1. A slicer can select one priority and filter its numeric count consistently.
  2. Sample values retain their required fractional precision after load.
  3. Each group has one row with the independently checked sum of its expenses.
  4. The query-dependency view contains no cycles and all enabled outputs refresh.

Explanation

Correct Answer

D:

The query-dependency view contains no cycles and all enabled outputs refresh. It provides the required observation for the chosen implementation: Arrange base and referenced queries as an acyclic dependency chain. This test addresses the stated business constraint directly.

Incorrect Answers

A:

A slicer can select one priority and filter its numeric count consistently. That check would be meaningful for the separate case: A help desk export has ticket priorities distributed as columns rather than values, preventing a single priority slicer. It would not directly verify this scenario's selected implementation: Arrange base and referenced queries as an acyclic dependency chain.

B:

Sample values retain their required fractional precision after load. That check would be meaningful for the separate case: A source's decimal sales amount is accidentally cast to Whole Number during import. It would not directly verify this scenario's selected implementation: Arrange base and referenced queries as an acyclic dependency chain.

C:

Each group has one row with the independently checked sum of its expenses. That check would be meaningful for the separate case: An expense detail table needs total amount grouped by CostCenter and FinancialYear before modeling. It would not directly verify this scenario's selected implementation: Arrange base and referenced queries as an acyclic dependency chain.

Question 153

A marketing analyst wants to keep all historic records while appending new daily records from a matching query. Which solution should the analyst prioritize for this scenario?

  1. Build a dimension with unique region keys and keep descriptive hierarchy attributes.
  2. Merge queries on CustomerID with a join that retains all required shipments.
  3. Use Append after validating matching columns, not Merge on customer ID.
  4. Retain currency context and convert through a defined exchange-rate methodology before combined totals.

Explanation

Correct Answer

C:

Use Append after validating matching columns, not Merge on customer ID. This targets the specific requirement described for this Power BI scenario. The corresponding acceptance check is: The resulting table contains both historic and new event rows rather than horizontally joined fields.

Incorrect Answers

A:

'Build a dimension with unique region keys and keep descriptive hierarchy attributes' is validated when 'The fact-to-region relationship uses one key and hierarchy labels do not cause key collisions'. It does not demonstrate 'The resulting table contains both historic and new event rows rather than horizontally joined fields', which requires 'Use Append after validating matching columns, not Merge on customer ID'.

B:

A successful 'Merge queries on CustomerID with a join that retains all required shipments' would show 'Matched shipments receive segment values and unmatched shipments remain visible as intended'. This case needs 'Use Append after validating matching columns, not Merge on customer ID' and evidence that 'The resulting table contains both historic and new event rows rather than horizontally joined fields', not the other outcome.

D:

The check for 'Retain currency context and convert through a defined exchange-rate methodology before combined totals' is 'Reconciled totals use a common reporting currency and state the rate date'. That does not establish 'The resulting table contains both historic and new event rows rather than horizontally joined fields'; the stated requirement calls for 'Use Append after validating matching columns, not Merge on customer ID'.

Question 154

A Power BI team has selected this approach: Use Append after validating matching columns, not Merge on customer ID. The original business context is: A marketing analyst wants to keep all historic records while appending new daily records from a matching query. Which check would show that the solution meets its stated goal?

  1. Reconciled totals use a common reporting currency and state the rate date.
  2. The resulting table contains both historic and new event rows rather than horizontally joined fields.
  3. Matched shipments receive segment values and unmatched shipments remain visible as intended.
  4. The fact-to-region relationship uses one key and hierarchy labels do not cause key collisions.

Explanation

Correct Answer

B:

The resulting table contains both historic and new event rows rather than horizontally joined fields. It provides the required observation for the chosen implementation: Use Append after validating matching columns, not Merge on customer ID. This test addresses the stated business constraint directly.

Incorrect Answers

A:

Reconciled totals use a common reporting currency and state the rate date. That check would be meaningful for the separate case: An order table reports sales in different currencies and an analyst plans to sum raw amounts across currencies. It would not directly verify this scenario's selected implementation: Use Append after validating matching columns, not Merge on customer ID.

C:

Matched shipments receive segment values and unmatched shipments remain visible as intended. That check would be meaningful for the separate case: A shipments query must enrich each shipment with a customer segment from a second table keyed by CustomerID. It would not directly verify this scenario's selected implementation: Use Append after validating matching columns, not Merge on customer ID.

D:

The fact-to-region relationship uses one key and hierarchy labels do not cause key collisions. That check would be meaningful for the separate case: A product export includes region names with hierarchy levels in separate columns; the analyst needs a stable region key for joins. It would not directly verify this scenario's selected implementation: Use Append after validating matching columns, not Merge on customer ID.

Question 155

A fact query includes columns for note text and debug payloads that reports never use. What should the Power BI analyst configure to meet the stated need?

  1. Convert the OrderDate column to the Date type in Power Query before load.
  2. Disable load for the unnecessary duplicate or remove it after dependency review.
  3. Remove irrelevant columns before loading to reduce model size.
  4. Append the regional queries after aligning their column names and types.

Explanation

Correct Answer

C:

Remove irrelevant columns before loading to reduce model size. This targets the specific requirement described for this Power BI scenario. The corresponding acceptance check is: Loaded tables omit unnecessary text while all required analytical fields remain.

Incorrect Answers

A:

'Convert the OrderDate column to the Date type in Power Query before load' addresses the mechanism measured by 'The date field behaves as a date and chronological filters use the intended days'. The current outcome is 'Loaded tables omit unnecessary text while all required analytical fields remain' after 'Remove irrelevant columns before loading to reduce model size', which the distractor leaves unverified.

B:

'Only the intended fact table loads and dependent queries still work' would demonstrate 'Disable load for the unnecessary duplicate or remove it after dependency review', but not 'Loaded tables omit unnecessary text while all required analytical fields remain'. The latter requires 'Remove irrelevant columns before loading to reduce model size' in this scenario.

D:

Using 'Append the regional queries after aligning their column names and types' supports the result 'The resulting table has the combined regional orders without a side-by-side join'. It does not implement 'Remove irrelevant columns before loading to reduce model size' or prove 'Loaded tables omit unnecessary text while all required analytical fields remain' for this question.

Question 156

A Power BI team has selected this approach: Remove irrelevant columns before loading to reduce model size. The original business context is: A fact query includes columns for note text and debug payloads that reports never use. Which observed result would best confirm the change worked as intended?

  1. The resulting table has the combined regional orders without a side-by-side join.
  2. Only the intended fact table loads and dependent queries still work.
  3. Loaded tables omit unnecessary text while all required analytical fields remain.
  4. The date field behaves as a date and chronological filters use the intended days.

Explanation

Correct Answer

C:

Loaded tables omit unnecessary text while all required analytical fields remain. It provides the required observation for the chosen implementation: Remove irrelevant columns before loading to reduce model size. This test addresses the stated business constraint directly.

Incorrect Answers

A:

The resulting table has the combined regional orders without a side-by-side join. That check would be meaningful for the separate case: Two branches export identical Orders columns for different regions and rows should stack. It would not directly verify this scenario's selected implementation: Remove irrelevant columns before loading to reduce model size.

B:

Only the intended fact table loads and dependent queries still work. That check would be meaningful for the separate case: A query's duplicate stage adds no new rows but creates two loaded copies of a large fact table. It would not directly verify this scenario's selected implementation: Remove irrelevant columns before loading to reduce model size.

D:

The date field behaves as a date and chronological filters use the intended days. That check would be meaningful for the separate case: A source exports order dates as text but the model must support a date hierarchy and time intelligence. It would not directly verify this scenario's selected implementation: Remove irrelevant columns before loading to reduce model size.

Question 157

A source's decimal sales amount is accidentally cast to Whole Number during import. Which modeling or report-design decision most directly resolves this situation?

  1. Unpivot the month columns into Month and Value fields.
  2. Set a fixed decimal or decimal number type appropriate to monetary calculations.
  3. Derive a normalized Date-only key from the timestamps for the relationship.
  4. Expand the list and each record into a tabular Power Query structure.

Explanation

Correct Answer

B:

Set a fixed decimal or decimal number type appropriate to monetary calculations. This targets the specific requirement described for this Power BI scenario. The corresponding acceptance check is: Sample values retain their required fractional precision after load.

Incorrect Answers

A:

'Unpivot the month columns into Month and Value fields' is validated when 'The result has month-value rows rather than twelve separate month measures'. It does not demonstrate 'Sample values retain their required fractional precision after load', which requires 'Set a fixed decimal or decimal number type appropriate to monetary calculations'.

C:

A successful 'Derive a normalized Date-only key from the timestamps for the relationship' would show 'Every intended transaction matches the corresponding calendar date without time mismatches'. This case needs 'Set a fixed decimal or decimal number type appropriate to monetary calculations' and evidence that 'Sample values retain their required fractional precision after load', not the other outcome.

D:

The check for 'Expand the list and each record into a tabular Power Query structure' is 'The loaded table contains one row per API record and explicitly typed columns'. That does not establish 'Sample values retain their required fractional precision after load'; the stated requirement calls for 'Set a fixed decimal or decimal number type appropriate to monetary calculations'.

Question 158

A Power BI team has selected this approach: Set a fixed decimal or decimal number type appropriate to monetary calculations. The original business context is: A source's decimal sales amount is accidentally cast to Whole Number during import. What evidence most directly verifies that the requirement is satisfied?

  1. Every intended transaction matches the corresponding calendar date without time mismatches.
  2. The loaded table contains one row per API record and explicitly typed columns.
  3. The result has month-value rows rather than twelve separate month measures.
  4. Sample values retain their required fractional precision after load.

Explanation

Correct Answer

D:

Sample values retain their required fractional precision after load. It provides the required observation for the chosen implementation: Set a fixed decimal or decimal number type appropriate to monetary calculations. This test addresses the stated business constraint directly.

Incorrect Answers

A:

Every intended transaction matches the corresponding calendar date without time mismatches. That check would be meaningful for the separate case: A semantic model's fact table uses date-time stamps but needs to relate to a day-grain Date dimension. It would not directly verify this scenario's selected implementation: Set a fixed decimal or decimal number type appropriate to monetary calculations.

B:

The loaded table contains one row per API record and explicitly typed columns. That check would be meaningful for the separate case: An API returns a list of records inside a top-level JSON object rather than a flat table. It would not directly verify this scenario's selected implementation: Set a fixed decimal or decimal number type appropriate to monetary calculations.

C:

The result has month-value rows rather than twelve separate month measures. That check would be meaningful for the separate case: A wide quarterly table has one column per month but report designers need month as a slicer category. It would not directly verify this scenario's selected implementation: Set a fixed decimal or decimal number type appropriate to monetary calculations.

Question 159

An order table reports sales in different currencies and an analyst plans to sum raw amounts across currencies. Which solution should the analyst prioritize for this scenario?

  1. Unpivot the priority count columns to Priority and Count rows.
  2. Retain currency context and convert through a defined exchange-rate methodology before combined totals.
  3. Separate transactional facts from distinct product, customer and date dimensions at a defined grain.
  4. Pivot the attribute-name column using an appropriate value aggregation.

Explanation

Correct Answer

B:

Retain currency context and convert through a defined exchange-rate methodology before combined totals. This targets the specific requirement described for this Power BI scenario. The corresponding acceptance check is: Reconciled totals use a common reporting currency and state the rate date.

Incorrect Answers

A:

'Unpivot the priority count columns to Priority and Count rows' addresses the mechanism measured by 'A slicer can select one priority and filter its numeric count consistently'. The current outcome is 'Reconciled totals use a common reporting currency and state the rate date' after 'Retain currency context and convert through a defined exchange-rate methodology before combined totals', which the distractor leaves unverified.

C:

'The fact holds numeric events and foreign keys while dimensions contain descriptive attributes' would demonstrate 'Separate transactional facts from distinct product, customer and date dimensions at a defined grain', but not 'Reconciled totals use a common reporting currency and state the rate date'. The latter requires 'Retain currency context and convert through a defined exchange-rate methodology before combined totals' in this scenario.

D:

Using 'Pivot the attribute-name column using an appropriate value aggregation' supports the result 'The output contains the expected named attribute columns for each entity'. It does not implement 'Retain currency context and convert through a defined exchange-rate methodology before combined totals' or prove 'Reconciled totals use a common reporting currency and state the rate date' for this question.

Question 160

A Power BI team has selected this approach: Retain currency context and convert through a defined exchange-rate methodology before combined totals. The original business context is: An order table reports sales in different currencies and an analyst plans to sum raw amounts across currencies. What validation would be most relevant before accepting this change?

  1. Reconciled totals use a common reporting currency and state the rate date.
  2. A slicer can select one priority and filter its numeric count consistently.
  3. The fact holds numeric events and foreign keys while dimensions contain descriptive attributes.
  4. The output contains the expected named attribute columns for each entity.

Explanation

Correct Answer

A:

Reconciled totals use a common reporting currency and state the rate date. It provides the required observation for the chosen implementation: Retain currency context and convert through a defined exchange-rate methodology before combined totals. This test addresses the stated business constraint directly.

Incorrect Answers

B:

A slicer can select one priority and filter its numeric count consistently. That check would be meaningful for the separate case: A help desk export has ticket priorities distributed as columns rather than values, preventing a single priority slicer. It would not directly verify this scenario's selected implementation: Retain currency context and convert through a defined exchange-rate methodology before combined totals.

C:

The fact holds numeric events and foreign keys while dimensions contain descriptive attributes. That check would be meaningful for the separate case: A warehouse table combines ProductKey, CustomerKey, DateKey and SalesAmount events with repeated descriptions. It would not directly verify this scenario's selected implementation: Retain currency context and convert through a defined exchange-rate methodology before combined totals.

D:

The output contains the expected named attribute columns for each entity. That check would be meaningful for the separate case: A key-value table lists attributes in rows but the model needs each attribute as a field. It would not directly verify this scenario's selected implementation: Retain currency context and convert through a defined exchange-rate methodology before combined totals.