無料で使えるTDS-C01試験ブレーン問題集認定ガイド問題と解答
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質問 # 159
DOWNLOAD THE DATASET FROM: https://drive.google.com/drive/folders/1WXzqsrNmXVdmQ-574wld4InEplyKT8RP?usp=sharing (if you haven't already) Using the cwurData table, plot a Map to see which country had the Second highest number of patents in the Year 2013?
- A. Canada
- B. United Kingdom
- C. United States
- D. France
正解：D
解説：
Follow along to get the correct answer:
Drag Country to the view, and then Patents to the Size Mark on the Marks shelf as follows :
2) But, this isn't all right? We need to focus on the year 2013. This can be done by using the year column as it is (continuous) in the filter shelf, or by converting it to discrete first and then using it:
2.1 As it is (continuous)
2.2 Converting to discrete first & then using it
and then :
3) We can now see that France, with 485 has the 2nd most number of patents for the year 2013
質問 # 160
Which of the following 2 columns CANNOT be deleted in Tableau?
- A. Number of Records
- B. Measure Values
- C. Calculated Fields
- D. Measure Names
正解：B、D
解説：
Measure names and values CANNOT be deleted in Tableau like other columns can. These are auto-generated.
Calculated Fields, and Number of records can both be deleted.
質問 # 161
Tableau will automatically create a hierarchy for which two kinds of data? Choose two.
- A. String
- B. Date
- C. Geographic
- D. Date & Time
正解：B、C
解説：
Tableau will automatically create a hierarchy for date and geographic data. A hierarchy is a way of organizing data into different levels of detail. For example, a date hierarchy can have year, quarter, month, and day levels. A geographic hierarchy can have country, state, city, and zip code levels. Tableau recognizes date and geographic data based on their data types and formats, and creates hierarchies for them by default. Tableau does not automatically create hierarchies for date & time or string data3
質問 # 162
Dimensions containing ____________ and ____________ values cannot be continuous.
- A. Date and Time
- B. Date
- C. Boolean
- D. String
正解：C、D
解説：
According to Tableau's official documentation -
質問 # 163
Using the dataset, create a bar chart showing the average Quantity broken down by Region, and filtered by Country to only show Japan. What was the average Quantity in the State of Tokyo?
- A. 3.000
- B. 3.500
- C. 3.840
- D. 3.704
正解：D
質問 # 164
True or False: A reference line cannot be added from the Analytics Pane
- A. True
- B. False
正解：B
解説：
You can add a reference line to any continuous axis in the view.
To add a reference line:
Drag Reference Line from the Analytics pane into the view. Tableau shows the possible destinations. The range of choices varies depending on the type of item and the current view.
In a simple case, the drop target area offers three options:
質問 # 165
By definition, Tableau displays measures over time as a ____________
- A. Packed Bubble
- B. Bar
- C. Stacked Bar
- D. Line
正解：D
解説：
Line charts connect individual data points in a view. They provide a simple way to visualize a sequence of values and are useful when you want to see trends over time, or to forecast future values.
Please refer to the images below:
質問 # 166
Using the CoffeeChain table, create a Dual Axis chart showing the Sales (Bar chart) and Profit (Line Chart) for each Product type. What was the Profit for the Herbal Tea product type in 2013?
- A. 74,683
- B. 68,620
- C. 46,493
- D. 37,455
正解：D
解説：
If you answered this question quickly and correctly, you're well prepared for the exam! Most students stumble while creating a Dual axis chart, so go ahead and give yourself a pat on the back!
To create a dual axis chart for the problem mentioned:
1) Drag Product Type to the column shelf, and Sales and Profit to the Row shelf:
2) Now, to focus on 2013, drag Date to the filter shelf and select only 2013:
3) Now, click on the Profit pill in the Rows Shelf, and select dual axis:
4) Now, in the marks shelf, choose Sales, and change the chart type to bar. Similarly, for Profit, change the chart type to Line.
Now the chart looks like this:
Now we change the Profit chart type to line:
5) Finally, we synchronise the axis as follows: Right click on the axis, and choose 'Synchronise axis'
And, our final view and answer is:
質問 # 167
Larger image
What is this entire view referred to as in Tableau?
- A. Data pane
- B. Distribution Pane
- C. Analytics Pane
- D. Summary Pane
正解：C
解説：
Distribution Pane
This is the Analytics pane! Read more from the official documentation below:
質問 # 168
You have the following legend.
What occurs when you click the icon to the right of Air Ticketing Cabin Type Name?
- A. The filter options open.
- B. The Edit Colors dialog box opens
- C. The legend toggles on or off.
- D. The highlighter toggles on or off.
正解：D
解説：
When you click the icon to the right of Air Ticketing Cabin Type Name, the highlighter toggles on or off. The highlighter is a feature that allows you to highlight marks in the view that match a specific value or condition. You can access the highlighter by clicking the icon next to a dimension or measure in the legend, filter, or parameter. The icon looks like a light bulb with a plus sign. When you click the icon, a highlighter box will appear where you can enter or select a value to highlight. The marks that match the value will be highlighted in the view, while the others will be dimmed. You can also use the highlighter box to search for values, clear the highlighting, or lock the highlighting. To turn off the highlighter, you can click the icon again or close the highlighter box. The other options are not correct descriptions of what occurs when you click the icon to the right of Air Ticketing Cabin Type Name. The filter options do not open, because the icon is not for filtering, but for highlighting. The legend does not toggle on or off, because the icon is not for showing or hiding the legend, but for accessing the highlighter. The Edit Colors dialog box does not open, because the icon is not for changing the colors of marks, but for highlighting them.
質問 # 169
To use a quick table calculation, which of the following programming languages do you need to know?
- A. None of these
- B. Java
- C. Javascript
- D. ython
正解：A
解説：
You don't need to know ANY programming language to use quick table calculations!
Follow along with the steps below to learn how to apply a quick table calculation to a visualization:
1) Open Tableau Desktop and connect to the Sample-Superstore data source, which comes with Tableau.
2) Navigate to a new worksheet.
3) From the Data pane, under Dimensions, drag Order Date to the Columns shelf.
4) From the Data pane, under Dimensions, drag State to the Rows shelf.
5) From the Data pane, under Measures, drag Sales to Text on the Marks Card.
6) From the Data pane, under Measures, drag Profit to Color on the Marks Card.
7) On the Marks card, click the Mark Type drop-down and select Square.
The visualization updates to look like this:
Apply the quick table calculation
1) On the Marks card, right-click SUM(Profit) and select Quick Table Calculation > Moving Average.
Note: You can only perform quick table calculations on measures in the view.
A delta symbol appears on the field to indicate that a quick table calculation is being applied to the field. The colors in the visualization update to show the moving average of profit across the years.
質問 # 170
Which of the following is a good reason for using a bullet graph?
- A. Analysing the trend over a given time period
- B. Comparing the actual sales against the target sales
- C. Forecasting future sales
- D. Displaying the year-on-year growth in sales
正解：B
解説：
A bullet graph is a variation of a bar graph developed to replace dashboard gauges and meters. A bullet graph is useful for comparing the performance of a primary measure to one or more other measures. Below is a single bullet graph showing how actual sales compared to estimated sales.
質問 # 171
What does it imply if a field has a blue background?
- A. It is a measure
- B. It is continuous
- C. It is a dimension
- D. It is discrete
正解：D
解説：
Explanation
When you connect to a new data source, Tableau assigns each field in the data source as dimension or measure in the Data pane, depending on the type of data the field contains. You use these fields to build views of your data.
質問 # 172
What is the minimum amount of RAM recommended for any production use of Tableau Server?
- A. 16GB
- B. 32GB
- C. 8GB
- D. 64GB
正解：A
解説：
Explanation
The computer on which you are installing or upgrading Tableau Server must meet the minimum hardware requirements. If the Setup program determines that your computer does not meet the following requirements, you will not be able to install Tableau Server.
These minimum requirements are appropriate for a computer that you use for prototyping and testing of Tableau Server. They apply to single-node installations and to each computer in a distributed installation.
質問 # 173
If you see the following Filter, then you're working with _______________________ Larger image
- A. Date Functions
- B. Date Parts
- C. Grouped Dates
- D. Date Values
正解：D
解説：
Explanation
Dates in Tableau will behave differently depending on whether they are a Datepart (blue) or a Datevalue (green). This affects how the axes display/behave and also how visualisations such as line charts will display.
The difference essentially boils down to Dateparts behaving like a dimension as opposed to a measure which is how Datevalues behave. This means that Dateparts behave like discrete categories on the view whereas Datevalues are more like continuous numeric values.
Dateparts are discrete and they behave the same as dimension filters. If all dates are used on the filter then each individual date will be a datepart that can be selected/excluded. This is the same for each level of date, if datepart months is placed on filters January to December will be tick-able options in the filter. This also means that conditions and top/bottom filters can be applied to datepart filters like any other dimension filter.
Datevalues placed on filters behave like measure filters. A min and a max date can be set and there is a relative dates option which allows you to choose things like only show the previous 3 months or years etc.
質問 # 174
True or False: We can disaggregate the data, to see all of the marks in the view at the most detailed level of granularity
- A. False
- B. True
正解：B
解説：
Whenever you add a measure to your view, an aggregation is applied to that measure by default. This default is controlled by the Aggregate Measures setting in the Analysis menu.
If you decide you want to see all of the marks in the view at the most detailed level of granularity, you can disaggregate the view. Disaggregating your data means that Tableau will display a separate mark for every data value in every row of your data source.
To disaggregate all measures in the view:
Clear the Analysis >Aggregate Measures option. If it is already selected, click Aggregate Measures once to deselect it.
質問 # 175
How can you change the Default Aggregation for a measure in Tableau?
- A. By double clicking on the measure, and then choosing Window -> Default Aggregation
- B. By changing its properties manually every time we need to use it
- C. By right clicking the measure -> Default properties and choosing Aggregation
- D. By right clicking the dimension -> Default properties and choosing Aggregation
正解：A
解説：
Explanation
According to the official Tableau documentation:
Dimensions don't have aggregation properties, and adding properties manually each time defeats the whole DEFAULT aggregation purpose. Window tab doesn't have any default aggregation option!
質問 # 176
True or False: Sets can be created on Measures
- A. True
- B. False
正解：B
解説：
Sets are custom fields that are created within Tableau Desktop based on dimensions from your data source. They are subsets of your data, which can be created manually or computed. Either dimensions or measures can be used to determine what is included or excluded from a set using conditional logic, but to CREATE a set we use dimensions.
質問 # 177
True or False: A LEFT JOIN or INNER JOIN creates a row each time the join criteria is satisfied, which can result in duplicate rows. One way to avoid this is to use data blending instead.
- A. False
- B. True
正解：B
解説：
Joins combine tables by adding more columns of data across similar row structures. This can cause data loss or duplication if tables are at different levels of detail, and joined data sources must be fixed before analysis can begin.
Inner join
Left Join
Blends, unlike relationships or joins, never truly combine the data. Instead, blends query each data source independently, the results are aggregated to the appropriate level, then the results are presented visually together in the view.
質問 # 178
Which two types of fields appear blue? Choose two.
- A. Discrete measures
- B. Discrete dimensions
- C. Continuous dimensions
- D. Continuous measures
正解：A、B
解説：
Discrete measures and discrete dimensions appear blue in Tableau. Discrete fields are those that have a finite number of distinct values, such as names, categories, or dates. Discrete fields are usually used to create headers or labels in the view. Blue fields indicate that the field is discrete. Continuous measures and continuous dimensions appear green in Tableau. Continuous fields are those that have an infinite range of possible values, such as numbers or ratios. Continuous fields are usually used to create axes or color gradients in the view. Green fields indicate that the field is continuous1
質問 # 179
Which of the following are True for Measure Names?
- A. It contains the names of all measures in your data, collected into a single field with discrete values.
- B. It contains all the measures in your data, collected into a single field with continuous values.
- C. When you add it to a view, all of the measure names appear as row or column headers in the view.
- D. When working with a text table showing Profit for each Category,
when you add Sales to the text table (by dragging it and dropping it in the view), the measure names field is automatically dragged to the row and filter shelves.
正解：A、C、D
解説：
It contains all the measures in your data, collected into a single field with continuous values - This is the definition for 'Measure Values'.
All others are True w.r.t. Measure Names!
The Measure Names field contains the names of all measures in your data, collected into a single field with discrete values.
Documentation : https://help.tableau.com/current/pro/desktop/en-us/datafields_understanddatawindow_meavalues.htm
質問 # 180
You want to add Custom shapes to your visualisation. Where can you add these new shapes?
- A. In Downloads -> My Tableau Repository -> Shapes
- B. In Program Files -> Tableau -> Shapes
- C. In My Documents -> My Tableau Repository -> Shapes
- D. In My Computer -> C: -> Tableau -> Shapes
正解：C
解説：
Explanation
Here's how to add image files to your repository:
1) Find image file on the internet. I try to find consistent image formats if I plan to use a set of shapes such as logos or flags.
2) Download the image to your computer.
3) Drag images into your My Documents -> My Tableau repository -> Shapes folder.
4) Open Tableau and your new shapes will automatically be included in your "edit shapes" menu.
質問 # 181
Are animations enabled by default in Tableau?
- A. Yes
- B. No
正解：B
解説：
Explanation
No, by default, animations are not enabled in Tableau.
We can animate visualizations to better highlight changing patterns in your data, reveal spikes and outliers, and see how data points cluster and separate.
Animations visually transition between filter, sort, and zoom settings, different pages, and changes to filter, parameter, and set actions. As visualizations animate in response to these changes, viewers can more clearly see how data differs, helping them make better informed decisions.
When you author animations, you can choose between two different styles: simultaneous or sequential. Here are examples of each type.
1) Simultaneous animations
The default simultaneous animations are faster and work well when showing value changes in simpler charts and dashboards.
2) Sequential animations
Sequential animations take more time but make complex changes clearer by presenting them step-by-step.
To Animate visualizations in a workbook:
1) Choose Format > Animations.
2) If you want to animate every sheet, under Workbook Default, click On. Then do the following:
For Duration, choose a preset, or specify a custom duration of up to 10 seconds.
For Style, choose Simultaneous to play all animations at once or Sequential to fade out marks, move and sort them, and then fade them in.
3) To override workbook defaults for a particular sheet, change the settings under Selected Sheet.
質問 # 182
Using the atheletes table:
i) Create a sheet with a crosstab showing the Average weight for each sport (Sheet 1) ii) Create a sheet with a Map showing the Total number of gold medals per Country. Use size as a Mark. (Sheet 2) Now, Create a Dashboard containing both these sheets, and Use Sheet 2 as a Filter for Sheet 1. What was the average weight for Badminton in Russia?
(Ignore any nulls / unknowns)
- A. 4.87
- B. 65.67
- C. 68.77
- D. 76.25
正解：D
解説：
Pretty common question on the Tableau Desktop Specialist exam.
1) First, lets create Sheet 1. For this, drag sport to the Row shelf, and Weight to the Text mark in the Marks shelf. Change its aggregation to Average:
2) Now, for sheet 2 - Drag nationality to the view, and gold to the size mark in the Marks shelf.
NOTE: Depending on your version of Tableau , you may need to assign a Geographical role to the nationality column first as follows:
3) Now, let's create a dashboard, and use both these sheets in it:
4) Now, for the most Important step, use SHEET 2 AS A FILTER FOR SHEET 1 as follows:
Now simply click on Russia in Sheet 2, and Sheet 1 will automatically update as follows:
質問 # 183
How can you add color to marks in the view in Tableau?
- A. From the Analytics pane, drag a model to Color on the Marks card.
- B. Click on Data in the main menu above, and click on choose color.
- C. In the column/row shelf, right click the field and click on edit in shelf to select the color.
- D. From the Data pane, drag a field to Color on the Marks card.
正解：D
解説：
Explanation
To assign a color to marks in the view, do the following:
From the Data pane, drag a field to Color on the Marks card.
Tableau applies different colors to marks based on the field's values and members. For example, if you drop a discrete field (a blue field), such as Category, on Color, the marks in the view are broken out by category, and each category is assigned a color.
If you drop a continuous field, such as SUM(sales), on Color, each mark in the view is colored based on its sales value.
質問 # 184
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