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PL-300 Training Course: 266 Video Lectures

PL-300 PDF Study Guide: 452 Pages

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Microsoft PL-300 Practice Test 25

Question 240

A transactional table has one row per purchased item and contains OrderID, ProductID and Quantity. What is the MOST appropriate Power BI design decision?

  1. Connect both facts to the same conformed Product dimension.
  2. Use a star schema with Sales fact and separate Product and Date dimensions.
  3. Treat the order lines as a granular fact table with additive measures.
  4. Treat Product as a conformed dimension on the one-side of relationships.

Explanation

Correct Answer

C:

Transaction facts record measurable events at their explicit detail grain, supporting model per-item purchase events.

Incorrect Answers

A:

Conformed dimensions support consistent filtering across multiple facts. It would address analyze separate business events with consistent product categories, not model per-item purchase events.

B:

Star schemas keep numeric transactions at fact grain and descriptive filters at unique dimension grain. That targets report sales using shared descriptive dimensions, not model per-item purchase events.

D:

Unique dimensions provide descriptive attributes that filter related facts. It is useful for filter facts through one-to-many product attributes, not for model per-item purchase events.

Question 241

Every DailyBudget row corresponds to exactly one approved calendar-day key in its own isolated pair table. Which configuration should the team choose?

  1. Model the many-to-many association with an explicit bridge when appropriate.
  2. Resolve lookup-key duplicates before creating the one-to-many relationship.
  3. Create Regions one-to-many Stores on RegionID.
  4. Use a one-to-one relationship when both sides are truly unique at the same grain.

Explanation

Correct Answer

D:

One-to-one cardinality requires uniqueness on each joining column, supporting join two uniquely keyed record sets.

Incorrect Answers

A:

Bridge tables resolve repeated link pairs while clarifying filter propagation. It is useful for model product-promotion many-to-many membership, not for join two uniquely keyed record sets.

B:

The one-side join key cannot contain duplicate values at its intended grain. Its scope is enforce relationship lookup uniqueness, not join two uniquely keyed record sets.

C:

One-to-many identifies a unique lookup key filtering repeated related keys. That is meant for model unique region to many stores, not join two uniquely keyed record sets.

Question 242

A model contains multiple active bidirectional routes between Products and Sales causing ambiguous path warnings. What is the MOST appropriate Power BI design decision?

  1. Remove unnecessary bidirectional filtering and establish one clear active path.
  2. Design intentional bridge relationships and scoped directions for that membership.
  3. Use CROSSFILTER within CALCULATE where supported and justified.
  4. Use single-direction Date-to-Sales relationship filtering.

Explanation

Correct Answer

A:

Multiple active filter routes can create ambiguous or surprising evaluation contexts; this helps resolve ambiguous filter paths.

Incorrect Answers

B:

Proper association modeling supports necessary many-to-many traversal without indiscriminate cross-filtering. That targets controlled bridge-related filter propagation, not resolve ambiguous filter paths.

C:

CROSSFILTER changes relationship filtering for that calculation without globally changing the model. It may suit measure-specific relationship direction, not resolve ambiguous filter paths.

D:

One-way dimension-to-fact filters preserve predictable star-schema propagation. It is useful for avoiding bidirectional filter ambiguity, not for resolving ambiguous filter paths.

Question 243

A shipping KPI must use ShipDate rather than the model's active OrderDate. Which configuration should the team choose?

  1. Make the OrderDate-to-Date relationship the active one.
  2. Create a measure with CALCULATE and USERELATIONSHIP for the ShipDate relationship.
  3. Create role-playing Order Date and Ship Date dimension copies where independently filtered views are required.
  4. Use a complete contiguous calendar table with a unique Date column.

Explanation

Correct Answer

B:

USERELATIONSHIP activates an existing inactive date path within the measure context, supporting alternate shipment-date measures.

Incorrect Answers

A:

The active date relationship supplies the default filter path for time-based measures. It is useful for default order-date analysis, not for alternate shipment-date measures.

C:

Distinct date role dimensions can support separate slicers without forcing one date context. That is meant for independent order and ship date slicers, not alternate shipment-date measures.

D:

A proper date dimension provides time categories even when facts have no records that day. It would address continuous calendar dates for analysis, not alternate shipment-date measures.

Question 244

A reporting year begins in July rather than January and monthly comparisons must respect fiscal periods. What is the MOST appropriate Power BI design decision?

  1. Use one governed date table and disable unnecessary Auto date/time behavior.
  2. Create a contiguous Date column and mark the table as the date table where appropriate.
  3. Add fiscal year and fiscal month attributes to the date dimension.
  4. Set MonthName to Sort by column using MonthNumber.

Explanation

Correct Answer

C:

Fiscal attributes represent business period definitions independently of the Gregorian year labels, supporting noncalendar fiscal reporting periods.

Incorrect Answers

A:

A shared date dimension avoids numerous generated date tables. It would address eliminate redundant autogenerated calendars, not noncalendar fiscal reporting periods.

B:

Complete dates underpin standard time-intelligence patterns and stable calendar filtering. That targets complete date-table time intelligence, not noncalendar fiscal reporting periods.

D:

Numeric sort keys produce chronological order for textual month labels. It is useful for chronological month sorting, not for noncalendar fiscal reporting periods.

Question 245

A ProductCode column contains digits but must preserve its identifiers and not be aggregated. Which configuration should the team choose?

  1. Set an appropriate geographic data category for the column.
  2. Expose a short approved display label while retaining full description in the model.
  3. Hide technical key columns from report view while retaining them for relationships.
  4. Set the appropriate text data type and Do Not Summarize behavior.

Explanation

Correct Answer

D:

Identifiers are categories, not meaningful additive measures; this helps prevent summing product identifiers.

Incorrect Answers

A:

Data category metadata helps map visuals interpret geographical coordinates. It is useful for geographic semantic classification of coordinates, not for preventing summing product identifiers.

B:

Display-specific columns improve usability without changing source record identity. Its scope is concise category labels for reporting, not prevent summing product identifiers.

C:

Hiding presentation fields does not remove keys needed by model joins. That is meant for simplify the report author field list, not prevent summing product identifiers.

Question 246

A transaction sales amount must add across products, stores, and dates. What is the MOST appropriate Power BI design decision?

  1. Use an additive transaction-grain SalesAmount measure.
  2. Keep budget in a separate monthly-grain fact table with conforming dimensions.
  3. Calculate distinct customers at the requested evaluation filter context.
  4. Treat inventory balance as semi-additive over the date dimension.

Explanation

Correct Answer

A:

Sales events represent flows and can be summed over each ordinary dimension, supporting sum additive sales across dimensions.

Incorrect Answers

B:

Separate grains prevent accidental multiplication of coarser measures by detail rows. That targets compare monthly budgets to atomic sales, not sum additive sales across dimensions.

C:

Distinct counts are nonadditive across overlapping date sets. It may suit avoid double counting returning customers, not sum additive sales across dimensions.

D:

Stock snapshots represent state on dates, not independent daily flows to add. It is useful for avoiding summing inventory snapshots over time, not for sum additive sales across dimensions.

Question 247

A card must show NetSales recalculated after a user filters Region and Product. Which configuration should the team choose?

  1. Use a calculated column for the row-level category when model storage is acceptable.
  2. Use a measure evaluated in the report's current filter context.
  3. Create a calculated table only when a physical table expression is necessary.
  4. Derive the category in Power Query before model load when practical.

Explanation

Correct Answer

B:

Measures respond dynamically to slicer and visual filter context, supporting responsive aggregate KPI.

Incorrect Answers

A:

Calculated columns materialize row-derived values for use as categories or slicers. It is useful for persist row-specific categorical attribute, not for responsive aggregate KPI.

C:

Calculated tables materialize table expressions during model processing. That is meant for model-based derived dimension table, not responsive aggregate KPI.

D:

Upstream transformations can prepare stable columns before DAX model processing. It would address transform stable attributes during ingestion, not responsive aggregate KPI.

Question 248

A Calendar dimension must support drill from Year to Quarter to Month to Date. What is the MOST appropriate Power BI design decision?

  1. Include parent Brand and a unique underlying product identifier to disambiguate drill context.
  2. Create an explicit Country-State-City hierarchy.
  3. Create a date hierarchy over those calendar attributes.
  4. Fix parent-child mapping before defining the category hierarchy.

Explanation

Correct Answer

C:

An explicit hierarchy provides a stable multilevel date drill path, supporting user-controlled temporal hierarchy navigation.

Incorrect Answers

A:

Composite hierarchy levels distinguish identically named members under separate parents. It would address avoid ambiguity in named products within hierarchy, not user-controlled temporal hierarchy navigation.

B:

Hierarchies define related drill levels in an ordered geographic path. That targets multilevel geographic drill navigation, not user-controlled temporal hierarchy navigation.

D:

Incorrect hierarchy relationships misattribute drill-down totals and members. It is useful for preserving valid category ancestry, not for user-controlled temporal hierarchy navigation.

Question 249

Revenue numbers should display with currency symbols, two decimals, and thousands separators. Which configuration should the team choose?

  1. Apply a percentage format to the ratio measure.
  2. Set Do Not Summarize or assign the appropriate categorical property.
  3. Configure Sort by Column using an approved fiscal period sequence.
  4. Set the measure's currency format string in the model.

Explanation

Correct Answer

D:

Model formatting preserves numeric values while controlling report presentation, supporting consistent formatted currency amounts.

Incorrect Answers

A:

Formatting a ratio as percent does not require multiplying the underlying calculation by 100. It is useful for display ratio measures as percentages, not for consistent formatted currency amounts.

B:

Identifier fields should not be arithmetically summed. Its scope is prevent meaningless ID arithmetic, not consistent formatted currency amounts.

C:

Custom sequence keys control labels independently of lexical ordering. That is meant for correct fiscal period ordering, not consistent formatted currency amounts.

Question 250

One KPI needs to ignore a problematic relationship without deleting it from the model. What is the MOST appropriate Power BI design decision?

  1. Use CROSSFILTER with NONE in the measure's CALCULATE if appropriate.
  2. Keep one active relationship and use explicit alternate-date measures.
  3. Use separate role-playing date dimensions for independent slicers.
  4. Use CALCULATE with USERELATIONSHIP('Date'[Date],Sales[DeliveryDate]).

Explanation

Correct Answer

A:

CROSSFILTER can override the relationship direction for a single measure, supporting disable a relationship path for one calculation.

Incorrect Answers

B:

Active paths must remain unambiguous while inactive paths can support specific calculations. That targets resolve dual-date relationship ambiguity, not disable a relationship path for one calculation.

C:

Two date tables provide independent filter contexts for two business date roles. It may suit independent simultaneous date filtering, not disable a relationship path for one calculation.

D:

USERELATIONSHIP activates the specified inactive relationship inside the calculation. It is useful for count transactions by alternate delivery date, not for disable a relationship path for one calculation.


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