[2025年01月] 厳密検証されたTDS-C01問題集と解答でTDS-C01問題集と正解付き [Q146-Q168]

[2025年01月] 厳密検証されたTDS-C01問題集と解答でTDS-C01問題集と正解付き

ベストTableau Desktop Specialist学習ガイドはTDS-C01試験合格させます

Tableau TDS-C01: Tableau Desktop Specialist Exam は、Tableau Desktop ソフトウェアを使用してデータを分析および可視化する個人のスキルをテストおよび検証する認定プログラムです。この試験は、データ可視化業界の主要企業の1つであるTableau Softwareによって実施されます。この認定は、個人が Tableau Desktop ソフトウェアを使用してデータを分析および可視化する能力を証明するもので、グローバルに認められています。

質問 # 146
For a relative date filter, the default anchor is _________________

A. The target date
B. The date we specify
C. Today's date
D. The current time

正解：A

解説：
Relative date filters dynamically update to show a time period relative to when you open the view, such as the current week, the year to date, or the past 10 days. Relative date filters make it easy to create views that always show the most recent data.
Step 1: Drag a date field to the filter shelf
Right-click (control-click on Mac) and drag a date field from the Data window to the Filters shelf. In the Filter Field dialog box, click Relative Date, and then click Next.

Step 2: Select a time unit
In the Filter dialog box, click Relative dates, and then select the unit of time for the filter. For example, to show only the three most recent weeks, select Weeks.

Here, you can clearly see that the default date is TODAY

質問 # 147
What are three benefits of using an extract as compared to a live connection to a data source? Choose three.

A. Calculated fields perform better in workbooks connected to extracts than in workbooks with live connections to a data source.
B. Extracts are stored in memory (RAM), resulting in faster query performance as compared with live data connections.
C. A live connection to a data source can be slow due to network and user traffic, whereas a connection to an extract improves performance.
D. A live connection to a data source provides the best performance for data connections.
E. An extract reduces the amount of data stored on a client computer as compared to a live data connection.

正解：A、B、C

解説：
There are three benefits of using an extract as compared to a live connection to a data source:
* A live connection to a data source can be slow due to network and user traffic, whereas a connection to an extract improves performance. An extract is a snapshot of data that is stored locally on your computer or on Tableau Server. An extract can reduce the load on the data source and speed up queries.
* Extracts are stored in memory (RAM), resulting in faster query performance as compared with live data connections. When you use an extract, Tableau loads the data into memory and optimizes it for analysis.
This allows Tableau to perform calculations and aggregations faster than with live connections.
* Calculated fields perform better in workbooks connected to extracts than in workbooks with live connections to a data source. Calculated fields are customfields that you create using formulas or expressions. When you use an extract, Tableau can process calculated fields more efficiently than with live connections.

質問 # 148
Are animations enabled by default in Tableau?

A. Yes
B. No

正解：B

解説：
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 # 149
How can you format numbers in Tableau as currency?

A. Right-click on the Sheet name and select Format. Then in the Format pane, click the Numbers drop-down menu.
B. Right-click a measure or axis in the view and select Format. Then in the Format pane, click the Numbers drop-down menu.
C. Right-click on the data source used in the view and select Format. Then in the Format pane, click the Numbers drop-down menu.
D. Right-click a dimension in the view and select Format. Then in the Format pane, click the Numbers drop-down menu.

正解：B

解説：
According to the official Tableau documentation:

質問 # 150
For a relative date filter, the default anchor is _________________

A. The date we specify
B. The target date
C. Today's date
D. The current time

正解：C

質問 # 151
If you see a Blue field, generally it will add _____________ to the view

A. headers
B. both
C. axis
D. none

正解：A

解説：
Important question!

質問 # 152
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. From the Data pane, drag a field to Color on the Marks card.
C. In the column/row shelf, right click the field and click on edit in shelf to select the color.
D. Click on Data in the main menu above, and click on choose color.

正解：B

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 # 153
_________________ is useful when you need to change how the data source is configured on a sheet-by-sheet basis, and when you want to combine databases that don't allow relationships or joins

A. Data Joining
B. Data Blending
C. Data segregation
D. Union

正解：B

解説：
Data blending is performed on a sheet-by-sheet basis and is established when a field from a second data source is used in the view. To create a blend in a workbook already connected to at least two data sources, bring a field from one data source to the sheet-it becomes the primary data source.
Switch to the other data source and use a field on the same sheet-it becomes a secondary data source. An orange linking icon will appear in the data pane, indicating which field(s) are being used to blend the data sources.

According to the official Tableau Documentation:

To read more about Data Blending, click on THIS link.

質問 # 154
True or False: It is possible to add a field to more than one hierarchy

A. True
B. False

正解：A

解説：
Yes! It is possible to duplicate a field and add it to more than one hierarchy. Right click and choose duplicate.

質問 # 155
Which of these is NOT a type of Quick Filter available in Tableau?

A. Regex Match
B. Multiple Values (dropdown)
C. Wildcard Match
D. Single Value (slider)

正解：A

解説：
Upon clicking on a filter, we see the following options:

Clearly, Regex Match is not one of these options!

質問 # 156
Which two filter modes can you use with dimension filters? Choose two

A. Wildcard Match
B. Range of Values
C. At most
D. Multiple Values (drop-down)

正解：A、D

解説：
With dimension filters in Tableau, you can use several filter modes, including "Multiple Values (drop-down)" which allows users to select one or more values from a drop-down list of all the dimension's members. Another mode is "Wildcard Match," which lets users filter the view by typing in a text box to match dimension members that contain the typed string. These filter types are particularly useful for string or categorical dimensions where users need to search or select specific members to display in the view.

質問 # 157
Which of the following can help us focus on specific data without removing data in the visualization?

A. Sets
B. Filters
C. Clusters
D. Highlighters

正解：D

解説：
From the official documentation:
When you have a view with a large amount of data you might want to explore your data interactively and highlight a specific mark or group of marks while still maintaining the context of where those marks show in your view.
To do this you can turn on the Highlighter for one or more discrete fields that are included in your view and that affect the level of detail Example - Here we just want to focus on Public Affairs college dimension, but don't want to filter out or remove the rest of the data:
Chart, scatter chart Description automatically generated

Note that filtering is not the correct option since that would REMOVE the data that doesn't match the filtering criteria.
Reference : https://help.tableau.com/current/pro/desktop/en-us/actions_highlight_highlighter.htm

質問 # 158
How can you MANUALLY assign geographic roles to a dimension from the data pane?

A. Right click it -> Edit Default properties -> Assign geographic roles
B. Right click it -> Geographic role -> and then assign the appropriate geographic role
C. Edit the config file in My Documents -> MyTableauRepository for a quick fix
D. Edit the data source manually for a quick resolution

正解：B

解説：
From the data pane, simply right click on the dimension, choose geographic role, and then select the appropriate role as follows:

質問 # 159
According to Tableau's 'Order of Operations', which of the following filters is applied FIRST?

A. Dimension Filter
B. Measure Filter
C. Extract Filter
D. Context Filter

正解：C

解説：
Explanation
According to Tableau's order of operations, the Extract filter is right at the top of the hierarchy. The data filtered in the Extract is then passed on to what we see in the Data Pane. See below:

質問 # 160
If you decide you want to see all of the marks in the view at the most detailed level of granularity, you can __________________ the view.

A. aggregate the measures
B. split the measures
C. disaggregate the measures
D. sort the measures
E. break-down the measures

正解：C

解説：

The different aggregations available for a measure determine how the individual values are collected: they can be added (SUM), averaged (AVG), or set to the maximum (MAX) or minimum (MIN) value from the individual row values.
For a complete list of the available aggregations, check out - List of Predefined Aggregations in Tableau.
The level of detail is determined by the dimensions in your view-for information about the concept of level of detail, see How dimensions affect the level of detail in the view.
Disaggregating your data can be useful for analyzing measures that you may want to use both independently and dependently in the view. For example, you may be analyzing the results from a product satisfaction survey with the Age of participants along one axis. You can aggregate the Age field to determine the average age of participants or disaggregate the data to determine at what age participants were most satisfied with the product.
Disaggregating data can be useful when you are viewing data as a scatter plot. See Example: Scatter Plots, Aggregation, and Granularity.

質問 # 161
Which Sub-Category had the least Profit in the Office Supplies category?

A. Binders
B. Fasteners
C. Envelopes
D. Labels

正解：B

解説：
To reach the correct answer, follow the steps below:

1) Drag Category, and sub-category to the row shelf. Drag Profit to the Column shelf
2) Click the Sort-ascending icon as shown above, to sort the profits from least to greatest as shown:
Click the 'Show mark labels icon'

As we can see, Fasteners has the least Profit in the Office Supplies Category, and hence is our correct answer!

質問 # 162
True or False: You get different filtering options for categorical and quantitative data

A. True
B. False

正解：A

解説：
Yes! We get different options for filtering depending on whether we use a categorical data (think dimension) or quantitative data (think measure).

Important Note: Each tab adds additional definitions to your filter. For example, you can select to exclude values under the General tab, and also add limits under the Top tab. Selections and configurations from both tabs are applied to your filter.At any time, you can see the definitions of your filter under Summary on the General tab.

Note: If you have a large data source, filtering measures can lead to a significant degradation in performance.
It is sometimes much more efficient to filter by creating a set containing the measure and then apply a filter to the set. For more information about creating sets, see Create Sets

質問 # 163
Is it possible to add both a Dashboard and a Worksheet at the same time to a Story Point in Tableau?

A. Yes
B. No

正解：B

解説：
This is a tricky question. We are talking about story POINTS, and not entire stories in the question.
To create a story, lets say I have a blank story with 1 dashboard and 1 worksheet.
I can simply drag the dashboard into the view to create a new story point.

Now, if I try to adjust the worksheet beside it in this same view, I cannot. See below:

The only option available is to replace the existing view. Therefore, the answer is NO since they both cannot be added.
Read more about stories in Tableau: https://help.tableau.com/current/pro/desktop/en-us/story_create.htm

質問 # 164
You have a scatter plot visualization.
What should you do to configure the visualization as a density map?

A. Select heat maps from Show Me.
B. Create a custom color palette.
C. Change the mark shape of the view.
D. Change the mark type of the view.

正解：D

解説：
You should change the mark type of the view to configure the visualization as a density map. A density map is a type of mark that shows how data points are distributed in a two-dimensional space. To change the mark type, you can use the Marks card or Show Me. Changing the mark shape, creating a custom color palette, or selecting heat maps from Show Me will not create a density map2

質問 # 165
You can use the __________________ in Tableau to clean / organise your data.

A. Data organiser
B. Data interpreter
C. Data manager
D. Data cleaner

正解：B

解説：
When you track data in Excel spreadsheets, you create them with the human interface in mind. To make your spreadsheets easy to read, you might include things like titles, stacked headers, notes, maybe empty rows and columns to add white space, and you probably have multiple tabs of data too.
When you want to analyze this data in Tableau, these aesthetically pleasing attributes make it very difficult for Tableau to interpret your data. That's where Data Interpreter can help.

質問 # 166
______________ refers to the level of detail for a piece of data, wherever you are looking.

A. Data Cleanliness
B. Data granularity
C. Data connectivity
D. Data LOD

正解：B

解説：
Explanation
Data is generated and analyzed at many different levels of granularity. Granularity is the level of detail of the data. For example, when looking at graduation data, granularity would describe whether a row in the data set represents a single person or the graduating class of a university.

質問 # 167
Which of the following are valid use-cases for the 'Manage Metadata' functionality?

A. To view all hidden fields
B. To clean and automatically fix the data issues in our data source
C. To see the field name in the original data source
D. To see the table a field belongs to

正解：A、C、D

解説：
Top of Form
To clean and automatically fix the data issues in our data source - This is the definition of Data Interpreter.
To rename the field in the original data source - We never modify the original data source when managing metadata. All changes are local to Tableau for our convenience only.
All other options can be modified using the Manage Metadata property.

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