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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 38

Question 370

A report needs a moving-average transformation across a specific displayed axis. Which design may simplify it?

  1. Create GrossMargin as a semantic-model measure.
  2. Recognize that visual calculations cannot call relationship-dependent functions such as RELATED.
  3. Use an appropriate visual calculation such as MOVINGAVERAGE when supported.
  4. Create a visual calculation such as RUNNINGSUM on that matrix.

Explanation

Correct Answer

C:

Use an appropriate visual calculation such as MOVINGAVERAGE when supported. Visual calculations can express running and moving windows over displayed points.

Incorrect Answers

A:

Model measures are reusable across visuals and respect filter context. Its application is “reports and slicers. Where should it be defined”, not the need “a moving-average transformation across a specific displayed axis”.

B:

Visual calculations operate on a visual matrix with limited function support. That is a different operating condition from “a moving-average transformation across a specific displayed axis”: “use RELATED to traverse model relationships and fails”.

D:

Visual calculations evaluate over the visual result rather than the whole semantic model. The present requirement is “a moving-average transformation across a specific displayed axis”; “one matrix without defining a reusable model measure” is a distinct situation.

Question 371

A sales report must place revenue totals by US state on a geographic map. What preparation helps?

  1. Convert latitude and longitude to appropriate decimal numeric columns.
  2. Set State and Country data categories and use a map with geographic context.
  3. Place the Sales measure in the map's size encoding.
  4. Include State and Country with City in the location context.

Explanation

Correct Answer

B:

Set State and Country data categories and use a map with geographic context. Clear geographical categories improve location interpretation.

Incorrect Answers

A:

Coordinate inputs need valid numeric data types for mapping. The present requirement is “totals by US state on a geographic map”; “were loaded as text” is a distinct situation.

C:

Bubble size can represent a numeric magnitude on geographic points. The boundary it addresses is “displays relative regional Sales magnitude using bubble sizes”, while this case concerns “totals by US state on a geographic map”.

D:

Include State and Country with City in the location context. This solves “name Springfield and the map incorrectly merges them”; the stated issue is “totals by US state on a geographic map”.

Question 372

Two cities share the name Springfield and the map incorrectly merges them. What should change?

  1. Convert latitude and longitude to appropriate decimal numeric columns.
  2. Set State and Country data categories and use a map with geographic context.
  3. Include State and Country with City in the location context.
  4. Place the Sales measure in the map's size encoding.

Explanation

Correct Answer

C:

Include State and Country with City in the location context. Place names alone are often geographically ambiguous.

Incorrect Answers

A:

Coordinate inputs need valid numeric data types for mapping. This solves “were loaded as text”; the stated issue is “name Springfield and the map incorrectly merges them”.

B:

Set State and Country data categories and use a map with geographic context. The deciding difference is “totals by US state on a geographic map” versus “name Springfield and the map incorrectly merges them”.

D:

Bubble size can represent a numeric magnitude on geographic points. That is a different operating condition from “name Springfield and the map incorrectly merges them”: “displays relative regional Sales magnitude using bubble sizes”.

Question 373

A map displays relative regional Sales magnitude using bubble sizes. What control communicates that?

  1. Include State and Country with City in the location context.
  2. Set State and Country data categories and use a map with geographic context.
  3. Use a ranked bar chart when exact country comparisons matter most.
  4. Place the Sales measure in the map's size encoding.

Explanation

Correct Answer

D:

Place the Sales measure in the map's size encoding. Bubble size can represent a numeric magnitude on geographic points.

Incorrect Answers

A:

Include State and Country with City in the location context. That is a different operating condition from “displays relative regional Sales magnitude using bubble sizes”: “name Springfield and the map incorrectly merges them”.

B:

Set State and Country data categories and use a map with geographic context. It serves “totals by US state on a geographic map”, not “displays relative regional Sales magnitude using bubble sizes”.

C:

Bar lengths support more precise magnitude comparison than map area. The present requirement is “displays relative regional Sales magnitude using bubble sizes”; “but exact comparisons are more important than geography” is a distinct situation.

Question 374

An executive wants to show a few country-level sales values but exact comparisons are more important than geography. Which visual alternative might be clearer?

  1. Set State and Country data categories and use a map with geographic context.
  2. Include State and Country with City in the location context.
  3. Use a ranked bar chart when exact country comparisons matter most.
  4. Place the Sales measure in the map's size encoding.

Explanation

Correct Answer

C:

Use a ranked bar chart when exact country comparisons matter most. Bar lengths support more precise magnitude comparison than map area.

Incorrect Answers

A:

Set State and Country data categories and use a map with geographic context. That matters for “totals by US state on a geographic map” rather than the condition “but exact comparisons are more important than geography”.

B:

Include State and Country with City in the location context. The boundary it addresses is “name Springfield and the map incorrectly merges them”, while this case concerns “but exact comparisons are more important than geography”.

D:

Bubble size can represent a numeric magnitude on geographic points. The deciding difference is “displays relative regional Sales magnitude using bubble sizes” versus “but exact comparisons are more important than geography”.

Question 375

A report uses latitude and longitude values that were loaded as text. How should mapping reliability improve?

  1. Convert latitude and longitude to appropriate decimal numeric columns.
  2. Use a ranked bar chart when exact country comparisons matter most.
  3. Include State and Country with City in the location context.
  4. Place the Sales measure in the map's size encoding.

Explanation

Correct Answer

A:

Convert latitude and longitude to appropriate decimal numeric columns. Coordinate inputs need valid numeric data types for mapping.

Incorrect Answers

B:

Bar lengths support more precise magnitude comparison than map area. Its application is “but exact comparisons are more important than geography”, not the need “were loaded as text”.

C:

Include State and Country with City in the location context. That is a different operating condition from “were loaded as text”: “name Springfield and the map incorrectly merges them”.

D:

Bubble size can represent a numeric magnitude on geographic points. It serves “displays relative regional Sales magnitude using bubble sizes”, not “were loaded as text”.

Question 376

A consumer must switch a chart's dimension between Product, Region and Channel without three duplicate charts. What feature fits?

  1. Use a field parameter to switch the visual grouping field.
  2. Keep security enforcement in semantic-model permissions and RLS.
  3. Use a field parameter or explicit SWITCH measure logic for dynamic fields.
  4. Limit the field parameter entries to approved report fields.

Explanation

Correct Answer

A:

Use a field parameter to switch the visual grouping field. Field parameters let readers choose among preconfigured fields.

Incorrect Answers

B:

Field switching is presentation behavior rather than access control. The present requirement is “Product, Region and Channel without three duplicate charts”; “visual fields and is mistaken for dataset-level security” is a distinct situation.

C:

A disconnected selection alone does not replace visual axes. That matters for “disconnected table and expects fields to switch automatically” rather than the condition “Product, Region and Channel without three duplicate charts”.

D:

Author-controlled parameter choices define the selectable field set. The boundary it addresses is “not be allowed to pick unsupported sensitive columns”, while this case concerns “Product, Region and Channel without three duplicate charts”.

Question 377

An executive wants to toggle chart measures between Sales and Profit while retaining the same axis. What helps?

  1. Use a field parameter that includes the approved measures.
  2. Keep security enforcement in semantic-model permissions and RLS.
  3. Limit the field parameter entries to approved report fields.
  4. Use a field parameter or explicit SWITCH measure logic for dynamic fields.

Explanation

Correct Answer

A:

Use a field parameter that includes the approved measures. Measure field parameters can change which measure a visual displays.

Incorrect Answers

B:

Field switching is presentation behavior rather than access control. This solves “visual fields and is mistaken for dataset-level security”; the stated issue is “Sales and Profit while retaining the same axis”.

C:

Author-controlled parameter choices define the selectable field set. The deciding difference is “not be allowed to pick unsupported sensitive columns” versus “Sales and Profit while retaining the same axis”.

D:

A disconnected selection alone does not replace visual axes. Its application is “disconnected table and expects fields to switch automatically”, not the need “Sales and Profit while retaining the same axis”.

Question 378

A report author uses a slicer on an ordinary disconnected table and expects fields to switch automatically. What is missing?

  1. Keep security enforcement in semantic-model permissions and RLS.
  2. Use a field parameter to switch the visual grouping field.
  3. Use a field parameter or explicit SWITCH measure logic for dynamic fields.
  4. Use a field parameter that includes the approved measures.

Explanation

Correct Answer

C:

Use a field parameter or explicit SWITCH measure logic for dynamic fields. A disconnected selection alone does not replace visual axes.

Incorrect Answers

A:

Field switching is presentation behavior rather than access control. Its application is “visual fields and is mistaken for dataset-level security”, not the need “disconnected table and expects fields to switch automatically”.

B:

Field parameters let readers choose among preconfigured fields. That is a different operating condition from “disconnected table and expects fields to switch automatically”: “Product, Region and Channel without three duplicate charts”.

D:

Measure field parameters can change which measure a visual displays. The present requirement is “disconnected table and expects fields to switch automatically”; “Sales and Profit while retaining the same axis” is a distinct situation.

Question 379

A visual has a field parameter but report consumers should not be allowed to pick unsupported sensitive columns. What should happen?

  1. Use a field parameter that includes the approved measures.
  2. Use a field parameter or explicit SWITCH measure logic for dynamic fields.
  3. Limit the field parameter entries to approved report fields.
  4. Keep security enforcement in semantic-model permissions and RLS.

Explanation

Correct Answer

C:

Limit the field parameter entries to approved report fields. Author-controlled parameter choices define the selectable field set.

Incorrect Answers

A:

Measure field parameters can change which measure a visual displays. The present requirement is “not be allowed to pick unsupported sensitive columns”; “Sales and Profit while retaining the same axis” is a distinct situation.

B:

A disconnected selection alone does not replace visual axes. That matters for “disconnected table and expects fields to switch automatically” rather than the condition “not be allowed to pick unsupported sensitive columns”.

D:

Field switching is presentation behavior rather than access control. This solves “visual fields and is mistaken for dataset-level security”; the stated issue is “not be allowed to pick unsupported sensitive columns”.

Question 380

A field parameter changes only visual fields and is mistaken for dataset-level security. What is the correction?

  1. Keep security enforcement in semantic-model permissions and RLS.
  2. Limit the field parameter entries to approved report fields.
  3. Use a field parameter that includes the approved measures.
  4. Use a field parameter or explicit SWITCH measure logic for dynamic fields.

Explanation

Correct Answer

A:

Keep security enforcement in semantic-model permissions and RLS. Field switching is presentation behavior rather than access control.

Incorrect Answers

B:

Author-controlled parameter choices define the selectable field set. The deciding difference is “not be allowed to pick unsupported sensitive columns” versus “visual fields and is mistaken for dataset-level security”.

C:

Measure field parameters can change which measure a visual displays. Its application is “Sales and Profit while retaining the same axis”, not the need “visual fields and is mistaken for dataset-level security”.

D:

A disconnected selection alone does not replace visual axes. That is a different operating condition from “visual fields and is mistaken for dataset-level security”: “disconnected table and expects fields to switch automatically”.