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| Section | Weight | Objectives |
|---|---|---|
| Exploring and Analyzing Data | 37% | - Apply calculations and aggregations - Create interactive dashboards and stories - Sort, group, and summarize data - Create and customize visualizations - Use filters, parameters, and sets |
| Understanding Tableau Concepts | 15% | - Data types and roles - Workbook, worksheet, and dashboard structure - Dimensions vs measures - Visualization best practices |
| Sharing Insights | 25% | - Export and publish visualizations - Publish and share workbooks - Set permissions and access - Ensure accessibility and clarity |
| Connecting to and Preparing Data | 23% | - Connect to various data sources - Join and union data - Data cleaning and transformation - Manage data fields and hierarchies |
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質問 # 11
Which chart type uses automatically generated sizes that cannot be resized by using the Marks card?
正解：D
解説：
The correct answer is Treemaps. A treemap represents data as a set of rectangles. Tableau uses one or more dimensions to define the rectangular structure, while a measure placed on Size determines each rectangle's relative area. Tableau automatically lays out the rectangles to use the available visualization space efficiently.
The analyst therefore controls relative size through the measure encoded on Size rather than manually resizing the generated rectangles with the ordinary Marks card size slider. For example, if Sub-Category defines the rectangles and Sales is placed on Size, categories with larger aggregated Sales values receive proportionally larger rectangles. Changing the Sales values or replacing the field on Size changes the relative areas, while Tableau recalculates the layout automatically. Pie charts have mark-size controls and can be resized through the Marks card. Area charts derive their visual area from their axes and underlying measures. Histograms use bars representing bins and frequencies and have different bar-sizing behavior. Tableau's official Treemap documentation identifies Size and Color as the crucial encodings and explains that a measure on Size determines the areas of the rectangles. The resulting treemap geometry is automatically laid out according to those values rather than manually sized mark by mark.
質問 # 12
A Tableau associate has a continuous numeric measure named Sales.
Which chart type is created when the associate double-clicks the Sales measure?
正解：C
解説：
Double-clicking a continuous numeric measure such as Sales in an empty Tableau worksheet automatically produces a bar chart, making C correct. Tableau uses intelligent defaults when fields are double-clicked in the Data pane. With a single measure and no dimensions already defining the view, Tableau aggregates the measure-normally using its default aggregation such as SUM-and adds it to the visualization. The Automatic mark type resolves to a bar, producing a single bar representing the aggregated Sales value.
Tableau's official documentation provides this exact construction using the Profit measure. It states that double-clicking Profit automatically adds the field to the view in an intelligent way, and the documented resulting visualization is a bar chart of Profit. Sales is the same type of field-a quantitative measure-so the same automatic-view rule applies. A line chart ordinarily requires an ordered dimension such as a date field to provide a sequence across which values can be connected. A pie chart requires additional categorical structure for meaningful segmentation. A text table is generally created when a dimension is double-clicked first and subsequent fields refine that cross-tabular structure. Therefore, a lone continuous numeric measure double- clicked in a new worksheet produces the automatic single-measure bar visualization.
質問 # 13
Which string function should a Tableau associate use to find a substring within a column and return a Boolean value?
正解：C
解説：
The correct function is CONTAINS, making D correct. Its syntax is conceptually CONTAINS(string, substring), and it returns a Boolean result indicating whether the specified substring exists anywhere within the source string. For example, CONTAINS([Product Name] , "Office") evaluates to TRUE for records where Product Name contains the sequence "Office" and FALSE where it does not. This makes CONTAINS useful for classification calculations, conditional logic, filtering, validation, and text-based segmentation. The other functions perform different operations. RTRIM removes trailing spaces and returns a string. SPLIT separates a string using a delimiter and returns the requested substring component. ENDSWITH does return a Boolean value, but it tests specifically whether the original string ends with the supplied substring. The requirement is to determine whether a substring occurs somewhere within the column value, so ENDSWITH is too restrictive. Tableau's official String Functions reference explicitly defines CONTAINS(string, substring) as returning TRUE when the supplied string contains the specified substring and identifies its output data type as Boolean. The same documentation distinguishes CONTAINS from STARTSWITH, ENDSWITH, trimming functions, and string parsing functions. Relevant topics include calculated fields, string functions, Boolean calculations, and text manipulation.
質問 # 14
What are three options to change the scope of a reference line?
正解：B、C、D
解説：
Tableau provides three principal scope levels for reference lines: Entire Table, Per Pane, and Per Cell.
Therefore, A, B, and D are correct. Scope determines the partition of the visualization over which Tableau calculates and displays the reference line. Entire Table computes one reference value based on all applicable marks in the view. This is appropriate for a global benchmark such as overall average Sales. Per Pane creates a separate reference line for each pane. For example, if a visualization is partitioned by Region, Tableau can calculate an independent average for each regional pane. Per Cell is still more granular and can calculate a separate reference line for each cell defined by the row and column structure of the view. Maximum is not a scope; it is a possible statistical value or computation that can be used to determine the reference-line value.
Similarly, Fill Above concerns formatting or shading behavior associated with analytical reference objects and does not define the calculation scope. Official Tableau documentation explicitly states that the terms Table, Pane, and Cell define the scope for reference lines and related analytical objects. These options control whether the benchmark applies globally or independently to specific partitions of the visualization.
質問 # 15
A Tableau associate has a bar chart that has a dimension on the Columns shelf and a measure on the Rows shelf.
How can the associate make a stacked bar chart?
正解：B
解説：
To convert the existing bar chart into a stacked bar chart, the associate should drag another dimension to Color on the Marks card. The initial bar chart already contains a dimension on Columns and a measure on Rows. Adding another categorical dimension to Color partitions each bar according to the members of that second dimension. Tableau assigns a separate color to each resulting group and, because automatic stacking is enabled for bar marks by default, those groups are displayed cumulatively within each bar. For example, if Category is on Columns and SUM(Sales) is on Rows, adding Segment to Color divides each Category bar into Consumer, Corporate, and Home Office segments while preserving the bar's total Sales magnitude.
Dragging another dimension to Size changes the visual size encoding rather than creating standard stacked segments. Adding another measure to Rows typically introduces an additional axis or measure structure. A measure placed on Color generally creates a quantitative gradient rather than categorical stacked segments.
Tableau's official Stack Marks documentation describes this exact construction: a dimension on Columns, a measure on Rows, and another dimension used to color-encode the marks.
質問 # 16
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