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Microsoft PL-300 Practice Test 2

Question 10

A SQL view has hundreds of millions of rows but only current-quarter purchases are required for this report. Which Power BI approach BEST satisfies the stated requirement?

  1. Move supported foldable filters before the nonfolding custom transformation.
  2. Inspect View Native Query and query-folding indicators for the selected step.
  3. Stage an approved shared reference result and control query evaluation rather than duplicate repeated API calls.
  4. Filter rows near the source step while preserving query folding.

Explanation

Correct Answer

D:

Folded filtering delegates predicates to the database and reduces transferred rows, supporting push restricted date filters to SQL.

Incorrect Answers

A:

Filter order can preserve upstream database pushdown before an operation prevents further folding. It would address avoid breaking query folding too early, not push restricted date filters to SQL.

B:

Query folding indicators and native statements expose pushdown behavior where supported. That targets verify relational query folding, not push restricted date filters to SQL.

C:

Reusing a controlled source evaluation may reduce repeated requests when supported by the refresh plan. It may suit manage rate-limited API request duplication, not push restricted date filters to SQL.

Question 11

A finance team keeps weekly workbook files inside a SharePoint document library. What should the report or semantic-model owner do?

  1. Use the SharePoint Folder connector and filter to the desired library path.
  2. Use the SharePoint Online List connector for the hosted list.
  3. Use the supported authenticated file or SharePoint connection for that workbook.
  4. Connect to the governed published semantic model rather than reading underlying site files anew.

Explanation

Correct Answer

A:

The SharePoint Folder connector enumerates files from site libraries and can combine standard workbook content, supporting combine library-hosted workbook files.

Incorrect Answers

B:

List-specific connectors retrieve structured list entries and columns. Its scope is ingest Microsoft Lists rows, not combine library-hosted workbook files.

C:

File-scoped connections can retrieve the specified file without scanning every unrelated folder. That is meant for connect to one secured cloud workbook, not combine library-hosted workbook files.

D:

Shared semantic models preserve upstream governed measures and row security. It would address reuse central analytics objects rather than raw files, not combine library-hosted workbook files.

Question 12

A refresh fails because a column expected as an integer includes the text value 'pending'. Which Power BI approach BEST satisfies the stated requirement?

  1. Validate upstream warehouse load timestamps and source freshness SLAs.
  2. Fix the conversion or error-handling step for invalid numeric source values.
  3. Inspect and correct the Power Query date-filter step.
  4. Repair gateway network connectivity and the permitted database route.

Explanation

Correct Answer

B:

Type conversion errors occur when raw values cannot be parsed as the specified type; this helps repair numeric conversion during refresh.

Incorrect Answers

A:

A successful Power BI refresh cannot invent source updates that have not yet arrived. It would address distinguish stale source data from refresh failure, not repair numeric conversion during refresh.

C:

Source query filters determine which records enter the loaded model. It may suit recover unintentionally filtered historical rows, not repair numeric conversion during refresh.

D:

Gateway refresh needs reachable internal endpoints and supported network permissions. It is useful for restoring private database refresh connectivity, not for repair numeric conversion during refresh.

Question 13

Multiple teams need consistent Net Sales calculations from one enterprise-owned model. What should the report or semantic-model owner do?

  1. Create a separate governed development semantic model for the experiment.
  2. Reuse that semantic model with its existing RLS and permission assignments.
  3. Build reports against the certified shared semantic model.
  4. Create or reuse an approved Power BI dataflow for repeatable upstream transformations.

Explanation

Correct Answer

C:

Central models keep shared measures and relationships under one steward, supporting consistent enterprise KPI reuse.

Incorrect Answers

A:

Separate development assets prevent unapproved changes to certified enterprise metrics. It is useful for isolate experimental model changes, not for consistent enterprise KPI reuse.

B:

A connected report can inherit semantic-model security rather than recreate rules independently. Its scope is preserve governed data-access semantics, not consistent enterprise KPI reuse.

D:

Dataflows centralize Power Query transformation logic for multiple downstream consumers. It would address reusable data preparation across reports, not consistent enterprise KPI reuse.

Question 14

An internal finance report must run offline from an imported snapshot during a planned source outage. Which Power BI approach BEST satisfies the stated requirement?

  1. Choose DirectQuery if the source meets responsiveness requirements.
  2. Use supported Direct Lake semantics over the Lakehouse tables.
  3. Connect to the approved Power BI semantic model.
  4. Use an Import model refreshed before the outage.

Explanation

Correct Answer

D:

Import keeps compressed rows available without a live database connection during interaction, supporting offline report analysis during source outage.

Incorrect Answers

A:

DirectQuery reads current source records during visual evaluation subject to source latency. It would address near-live source evaluation, not offline report analysis during source outage.

B:

Direct Lake is optimized for underlying OneLake Delta storage when its supported conditions are met. That targets analytical access to OneLake storage, not offline report analysis during source outage.

C:

Semantic model sharing avoids redefining measures, model relationships, and security configuration. It may suit reuse DAX measure definitions, not offline report analysis during source outage.

Question 15

An analyst needs to authorize a SQL data source without giving every report creator the database administrator password. What should the report or semantic-model owner do?

  1. Configure approved least-privileged source credentials or a managed connection.
  2. Use an approved application identity and scoped consent where the connector supports it.
  3. Remove the vendor's relevant item or workspace access and review any downstream sharing.
  4. Inspect the configured connection credentials and authentication identity in service settings.

Explanation

Correct Answer

A:

Least-privileged source identities reduce risk of broad database control, supporting limit refresh credential privilege.

Incorrect Answers

B:

Workload identity separates unattended service access from personal user credentials. Its scope is protected unattended API access, not limit refresh credential privilege.

C:

Access removal terminates permissions independently of data source refresh settings. That is meant for revoke expiring collaborator authorization, not limit refresh credential privilege.

D:

Credential configuration determines the security context used when fetching source rows. It would address audit identity used during data refresh, not limit refresh credential privilege.

Question 16

An organization deploys the same M logic to three subsidiaries that use different database names. Which Power BI approach BEST satisfies the stated requirement?

  1. Reference one reusable numeric parameter in the relevant queries.
  2. Use a database-name parameter referenced by each relevant Power Query.
  3. Change the parameter type to Date or DateTime and align column comparisons.
  4. Restrict a Power Query parameter to its list of allowed region values.

Explanation

Correct Answer

B:

Shared parameters centralize per-environment database selection without editing all scripts, supporting controlled subsidiary source parameterization.

Incorrect Answers

A:

Parameter reuse prevents inconsistent hard-coded constants across query steps. It would address consistent parameterized threshold management, not controlled subsidiary source parameterization.

C:

Correctly typed parameters avoid incompatible M comparisons and filter errors. It may suit repair date parameter typing, not controlled subsidiary source parameterization.

D:

Suggested or fixed permitted values constrain deployment configuration to approved regions. It is useful for restrict dynamic source choices, not for controlled subsidiary source parameterization.

Question 17

An operations dashboard needs only five specified SQL columns rather than the entire source table. What should the report or semantic-model owner do?

  1. Remove repeated header records before promoting final column headers.
  2. Implement supported pagination logic and validate continuation tokens.
  3. Select the necessary columns in a folding-friendly Power Query step.
  4. Connect to the governed aggregated view instead of raw transaction events.

Explanation

Correct Answer

C:

Column projection reduces data transfer and downstream model memory usage, supporting trim acquired data to required fields.

Incorrect Answers

A:

Cleaning repeated header rows avoids treating captions as business data. It is useful for correcting multi-block flat-file import, not for trim acquired data to required fields.

B:

Cursor paging is necessary to collect all result pages under a paginated API contract. Its scope is complete paged API extraction, not trim acquired data to required fields.

D:

Matching source grain can reduce row volume without losing the needed report detail. It would address select fit-for-purpose source granularity, not trim acquired data to required fields.

Question 18

A report designer is allowed to read a curated dataset through another team's Power BI workspace. Which Power BI approach BEST satisfies the stated requirement?

  1. Use the Azure SQL database connector with approved credentials.
  2. Use the Excel workbook connector to import the approved sheet or table.
  3. Use supported Direct Lake over Delta tables exposed by the Lakehouse.
  4. Use a connection to the shared semantic model with necessary Build permission.

Explanation

Correct Answer

D:

Build access allows creating content based on an approved semantic model without acquiring raw credentials, supporting authorized reuse of shared model.

Incorrect Answers

A:

Azure SQL connectivity retrieves supported tables and queries from the managed relational service. It would address direct Azure SQL ingestion, not authorized reuse of shared model.

B:

The Excel connector reads workbook tables and ranges into Power Query. That targets exploratory workbook import, not authorized reuse of shared model.

C:

Direct Lake serves supported tabular views over OneLake data without a separate full import. It may suit query Fabric Lakehouse assets directly, not authorized reuse of shared model.

Question 19

A business user asks if an unofficial workspace's KPI semantic model can be trusted as the approved company definition. What should the report or semantic-model owner do?

  1. Prefer a centrally endorsed or certified semantic model with documented owner.
  2. Reconcile source lineage and the authoritative ledger before loading the final measure.
  3. Exclude unnecessary personal fields at the earliest permitted acquisition step.
  4. Replace ad hoc credentials with an approved service-owned refresh connection.

Explanation

Correct Answer

A:

Endorsed datasets have a known accountable owner and reviewed metric meaning, supporting select trusted KPI source.

Incorrect Answers

B:

Source-of-truth governance prevents adopting unverified alternate totals. Its scope is resolve competing revenue sources, not select trusted KPI source.

C:

Data minimization reduces sensitive exposure and model footprint. That is meant for minimize personally identifying source fields, not select trusted KPI source.

D:

Accountable managed identities reduce orphaned access and make rotation supportable. It would address accountable production connector ownership, not select trusted KPI source.

Question 20

A manufacturing dashboard must reflect database transactions nearly immediately and policy forbids persisting source rows inside Power BI. Which action is most appropriate for the stated business outcome?

  1. Use Direct Lake over the supported Fabric tables.
  2. Connect to the approved shared Power BI semantic model.
  3. Import the ledger into a Power BI semantic model.
  4. Connect to the relational source using DirectQuery.

Explanation

Correct Answer

D:

DirectQuery sends supported visual queries to the source instead of storing imported fact rows, supporting live operational data without model caching.

Incorrect Answers

A:

Direct Lake reads underlying Delta data using the tabular engine and avoids a conventional full import duplicate. It would address querying lakehouse Delta tables directly, not live operational data without model caching.

B:

Reusing the shared semantic model centralizes metric definitions and existing managed relationships. That targets reporting on governed enterprise measures, not live operational data without model caching.

C:

Import materializes compressed data in the model and queries it without contacting the operational source on each interaction. It may suit low-latency cached historical analytics, not live operational data without model caching.


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