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Microsoft PL-300 Bundle

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 1

Question 1

A retail dashboard needs the fastest interactive queries over a daily refreshed copy of SQL sales data rather than live source changes. Which mode should the analyst prefer?

  1. Configure a Hybrid table with Import history and a DirectQuery hot partition.
  2. Select DirectQuery for source-side queries when visuals run.
  3. Choose Import storage and schedule refresh for the cached semantic model.
  4. Use Direct Lake over supported OneLake Delta tables.

Explanation

Correct Answer

C:

Choose Import storage and schedule refresh for the cached semantic model. Import uses in-memory VertiPaq data for fast interaction, but requires refresh for new rows.

Incorrect Answers

A:

Hybrid partitions combine cached older data and source-query access to recent data. The boundary it addresses is “query newly arrived fact rows in real time”, while this case concerns “SQL sales data rather than live source changes”.

B:

DirectQuery retrieves results from the source on report queries and inherits source latency. This solves “database without copying fact rows into the model”; the stated issue is “SQL sales data rather than live source changes”.

D:

Direct Lake accesses Delta-backed data through semantic-model caching without the usual Import refresh pipeline. Its application is “analyst wants near-current data without conventional imported-copy refresh”, not the need “SQL sales data rather than live source changes”.

Question 2

A stock-control report must query current inventory values from an external SQL database without copying fact rows into the model. Which mode is appropriate?

  1. Select DirectQuery for source-side queries when visuals run.
  2. Use Direct Lake over supported OneLake Delta tables.
  3. Configure a Hybrid table with Import history and a DirectQuery hot partition.
  4. Use a live connection to the existing published semantic model.

Explanation

Correct Answer

A:

Select DirectQuery for source-side queries when visuals run. DirectQuery retrieves results from the source on report queries and inherits source latency.

Incorrect Answers

B:

Direct Lake accesses Delta-backed data through semantic-model caching without the usual Import refresh pipeline. That is a different operating condition from “database without copying fact rows into the model”: “analyst wants near-current data without conventional imported-copy refresh”.

C:

Hybrid partitions combine cached older data and source-query access to recent data. It serves “query newly arrived fact rows in real time”, not “database without copying fact rows into the model”.

D:

Live-connected reports reuse the upstream model rather than separately importing the same facts. The present requirement is “database without copying fact rows into the model”; “model's measures and governance” is a distinct situation.

Question 3

A Fabric warehouse has Delta tables in OneLake, and the analyst wants near-current data without conventional imported-copy refresh. Which model mode fits?

  1. Choose Import storage and schedule refresh for the cached semantic model.
  2. Configure a Hybrid table with Import history and a DirectQuery hot partition.
  3. Select DirectQuery for source-side queries when visuals run.
  4. Use Direct Lake over supported OneLake Delta tables.

Explanation

Correct Answer

D:

Use Direct Lake over supported OneLake Delta tables. Direct Lake accesses Delta-backed data through semantic-model caching without the usual Import refresh pipeline.

Incorrect Answers

A:

Import uses in-memory VertiPaq data for fast interaction, but requires refresh for new rows. The present requirement is “analyst wants near-current data without conventional imported-copy refresh”; “SQL sales data rather than live source changes” is a distinct situation.

B:

Hybrid partitions combine cached older data and source-query access to recent data. That matters for “query newly arrived fact rows in real time” rather than the condition “analyst wants near-current data without conventional imported-copy refresh”.

C:

DirectQuery retrieves results from the source on report queries and inherits source latency. The boundary it addresses is “database without copying fact rows into the model”, while this case concerns “analyst wants near-current data without conventional imported-copy refresh”.

Question 4

An order model needs cached historical partitions but should query newly arrived fact rows in real time. Which storage pattern meets both needs?

  1. Select DirectQuery for source-side queries when visuals run.
  2. Use Direct Lake over supported OneLake Delta tables.
  3. Configure a Hybrid table with Import history and a DirectQuery hot partition.
  4. Use a live connection to the existing published semantic model.

Explanation

Correct Answer

C:

Configure a Hybrid table with Import history and a DirectQuery hot partition. Hybrid partitions combine cached older data and source-query access to recent data.

Incorrect Answers

A:

DirectQuery retrieves results from the source on report queries and inherits source latency. This solves “database without copying fact rows into the model”; the stated issue is “query newly arrived fact rows in real time”.

B:

Direct Lake accesses Delta-backed data through semantic-model caching without the usual Import refresh pipeline. The deciding difference is “analyst wants near-current data without conventional imported-copy refresh” versus “query newly arrived fact rows in real time”.

D:

Live-connected reports reuse the upstream model rather than separately importing the same facts. That is a different operating condition from “query newly arrived fact rows in real time”: “model's measures and governance”.

Question 5

A finance team must create its own report against an approved semantic model while retaining that model's measures and governance. Which connection fits?

  1. Configure a Hybrid table with Import history and a DirectQuery hot partition.
  2. Select DirectQuery for source-side queries when visuals run.
  3. Use Direct Lake over supported OneLake Delta tables.
  4. Use a live connection to the existing published semantic model.

Explanation

Correct Answer

D:

Use a live connection to the existing published semantic model. Live-connected reports reuse the upstream model rather than separately importing the same facts.

Incorrect Answers

A:

Hybrid partitions combine cached older data and source-query access to recent data. That is a different operating condition from “model's measures and governance”: “query newly arrived fact rows in real time”.

B:

DirectQuery retrieves results from the source on report queries and inherits source latency. It serves “database without copying fact rows into the model”, not “model's measures and governance”.

C:

Direct Lake accesses Delta-backed data through semantic-model caching without the usual Import refresh pipeline. The present requirement is “model's measures and governance”; “analyst wants near-current data without conventional imported-copy refresh” is a distinct situation.

Question 6

A workbook has several worksheets containing source tables and should be imported into Power Query. Which connector is the direct choice?

  1. Use the Excel workbook connector and select the required tables or sheets.
  2. Use the Web or JSON pathway and expand the returned records in Power Query.
  3. Use the Text/CSV connector with the correct delimiter and encoding.
  4. Use the Folder connector and Combine Files with an example transformation.

Explanation

Correct Answer

A:

Use the Excel workbook connector and select the required tables or sheets. The Excel connector understands workbook navigation items and table structures.

Incorrect Answers

B:

JSON-oriented ingestion preserves nested objects until they are expanded into tabular columns. The boundary it addresses is “the analyst must expand into fields”, while this case concerns “tables and should be imported into Power Query”.

C:

Text/CSV import parses delimited records rather than treating each file as an Excel workbook. This solves “text with a header row and encoding requirements”; the stated issue is “tables and should be imported into Power Query”.

D:

Folder ingestion applies a common transformation to matching files without manually importing each file. The deciding difference is “must be ingested together” versus “tables and should be imported into Power Query”.

Question 7

An analytics extract arrives as comma-delimited text with a header row and encoding requirements. How should it be ingested?

  1. Use the Text/CSV connector with the correct delimiter and encoding.
  2. Use the Folder connector and Combine Files with an example transformation.
  3. Choose the SQL Server database connector with appropriate server credentials.
  4. Use the Excel workbook connector and select the required tables or sheets.

Explanation

Correct Answer

A:

Use the Text/CSV connector with the correct delimiter and encoding. Text/CSV import parses delimited records rather than treating each file as an Excel workbook.

Incorrect Answers

B:

Folder ingestion applies a common transformation to matching files without manually importing each file. Its application is “must be ingested together”, not the need “text with a header row and encoding requirements”.

C:

The SQL Server connector supports database navigation and server-side query execution. That is a different operating condition from “text with a header row and encoding requirements”: “database and can fold filtering to the server”.

D:

The Excel connector understands workbook navigation items and table structures. It serves “tables and should be imported into Power Query”, not “text with a header row and encoding requirements”.

Question 8

A production dataset lives in a relational SQL Server database and can fold filtering to the server. Which source connector fits?

  1. Use the Folder connector and Combine Files with an example transformation.
  2. Choose the SQL Server database connector with appropriate server credentials.
  3. Use the Text/CSV connector with the correct delimiter and encoding.
  4. Use the Web or JSON pathway and expand the returned records in Power Query.

Explanation

Correct Answer

B:

Choose the SQL Server database connector with appropriate server credentials. The SQL Server connector supports database navigation and server-side query execution.

Incorrect Answers

A:

Folder ingestion applies a common transformation to matching files without manually importing each file. It serves “must be ingested together”, not “database and can fold filtering to the server”.

C:

Text/CSV import parses delimited records rather than treating each file as an Excel workbook. That matters for “text with a header row and encoding requirements” rather than the condition “database and can fold filtering to the server”.

D:

JSON-oriented ingestion preserves nested objects until they are expanded into tabular columns. The boundary it addresses is “the analyst must expand into fields”, while this case concerns “database and can fold filtering to the server”.

Question 9

A REST endpoint returns nested JSON objects that the analyst must expand into fields. Which source type should be used?

  1. Use the Excel workbook connector and select the required tables or sheets.
  2. Use the Text/CSV connector with the correct delimiter and encoding.
  3. Use the Web or JSON pathway and expand the returned records in Power Query.
  4. Choose the SQL Server database connector with appropriate server credentials.

Explanation

Correct Answer

C:

Use the Web or JSON pathway and expand the returned records in Power Query. JSON-oriented ingestion preserves nested objects until they are expanded into tabular columns.

Incorrect Answers

A:

The Excel connector understands workbook navigation items and table structures. The boundary it addresses is “tables and should be imported into Power Query”, while this case concerns “the analyst must expand into fields”.

B:

Text/CSV import parses delimited records rather than treating each file as an Excel workbook. This solves “text with a header row and encoding requirements”; the stated issue is “the analyst must expand into fields”.

D:

The SQL Server connector supports database navigation and server-side query execution. Its application is “database and can fold filtering to the server”, not the need “the analyst must expand into fields”.

Question 10

A shared folder holds equally structured monthly files that must be ingested together. Which starting connector fits?

  1. Use the Folder connector and Combine Files with an example transformation.
  2. Use the Excel workbook connector and select the required tables or sheets.
  3. Use the Web or JSON pathway and expand the returned records in Power Query.
  4. Use the Text/CSV connector with the correct delimiter and encoding.

Explanation

Correct Answer

A:

Use the Folder connector and Combine Files with an example transformation. Folder ingestion applies a common transformation to matching files without manually importing each file.

Incorrect Answers

B:

The Excel connector understands workbook navigation items and table structures. That is a different operating condition from “must be ingested together”: “tables and should be imported into Power Query”.

C:

JSON-oriented ingestion preserves nested objects until they are expanded into tabular columns. It serves “the analyst must expand into fields”, not “must be ingested together”.

D:

Text/CSV import parses delimited records rather than treating each file as an Excel workbook. The present requirement is “must be ingested together”; “text with a header row and encoding requirements” is a distinct situation.