TDS-C01認定で究極のガイド [2024年更新]
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質問 # 137
You can _______________ your data to combine two or more tables by appending values (rows) from one table to another
- A. union
- B. blend
- C. concatenate
- D. join
正解：A
解説：
Explanation
You can union your data to combine two or more tables by appending values (rows) from one table to another.
To union your data in Tableau data source, the tables must come from the same connection.
For example, suppose you have the following customer purchase information stored in three tables, separated by month. The table names are "May2016," "June2016," and "July2016."
A union of these tables creates the following single table that contains all rows from all tables.
質問 # 138
Using the Time Series table, create a chart that shows the percent difference in Average Inventory on Hand for each Assortment by year and quarter.
How many quarters did the Electronics Assortment show a negative percent difference in the Average Inventory On Hand?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
解説：
If you chose 2, then you were very close but probably didn't plot the actual Percent Difference on your view. ( One of the marks is just over the line).
Firstly, Drop the Week ID onto the column shelf, and convert it to continuous since we need both Year and Quarter as mentioned in the question.
2) Next, Drop assortment to filters shelf so that we can focus on Electronics!
3) This should be your view now. Click on the Show Mark Labels icon as shown:
The final view is as follows, with 3 points below 0 ( i.e negative )
質問 # 139
For Bullet Graphs we need at least ____________ measures
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
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.
Therefore, we need at least 2 measures for creating bullet graphs.
質問 # 140
Which of the following are the options to export the data used to build the view / visualisations?
- A. PDF File
- B. MS Access Database
- C. CSV file
- D. JSON format
正解：B、C
解説：
You can export the data in a Tableau data source, including all or part of the records from your original data. Alternatively, you can export only the portion of data used to generate the view.
Since the question mentions the data used to build the view, we'll focus on that :
*Export data in the view to Microsoft Access or .csv*
Export the data that is used to generate the view as an Access database (Windows only) or .csv file (Mac only).
1) In Tableau Desktop, select Worksheet > Export > Data.
2) Select a location and type a name for your Access database or .csv file.
3) Click Save.
4) If you're on Windows, the Export Data to Access dialog box displays to give you the option to immediately use the new Access database and continue working in Access without interrupting your work flow.
質問 # 141
True or False: All rows from both tables are returned in an INNER JOIN
- A. True
- B. False
正解：B
解説：
The INNER JOIN keyword selects all rows from both tables as long as there is a match between the columns.
Consider 2 tables "Orders" and "Customers".
If there are records in the "Orders" table that do not have matches in "Customers", these orders will not be shown!
質問 # 142
When you drop a continuous field on Color, Tableau displays a quantitative legend with a ___________ range of colors.
- A. Mixed
- B. Continuous
- C. Fading
- D. Discrete
正解：A
解説：
When you drop a discrete field on Color in the Marks card, Tableau displays a categorical palette and assigns a color to each value of the field.
When you drop a continuous field on Color, Tableau displays a quantitative legend with a continuous range of colors.
Web version:
Desktop Version:
For more information about color palettes, see Color Palettes and Effects.
質問 # 143
Which of the following are valid objects when creating a dashboard in Tableau? Choose 4.
- A. Video
- B. Image
- C. Web Page
- D. Text
- E. Extension
正解：B、C、D、E
解説：
Video is NOT a valid object type while creating dashboards in Tableau! All others are valid object types.
質問 # 144
When viewing quick table calculations, such as Percent Difference From, that use a value in the previous column, what will be the first data value in the visualization?
- A. Null
- B. The current value
- C. Duplicated from the nearest column
- D. Zero(O)
正解：A
解説：
According to the Tableau Desktop Specialist Exam Guide, when using quick table calculations, such as Percent Difference From, that use a value in the previous column, the first data value in the visualization will be null, because there is no previous value to compare with.
質問 # 145
_____________ contains the visualisations, info needed to build the visualisations, and a copy of the data source.
- A. Tableau Workbook (.twb)
- B. Tableau Bookmark (.tbm)
- C. Tableau Packaged Workbook (.twbx)
- D. Tableau Data Extract (.tde)
正解：C
解説：
TWBX is all in one. It contains viz, info needed to build the viz, and a copy of the data source. It doesn't contain extracts of the data but can contain both live and data extracts. Best if want to eliminate the barrier of data access.
Create a .twbx with file-based data sources
1) Select File > Save As.
2) Specify a file name for the packaged workbook in the Save As dialog box.
3)Select Tableau Packaged Workbooks on the Save as type drop-down list.
4) Click Save.
5) The default location is the Workbooks folder of the Tableau repository. However, you can save packaged workbooks to any directory you choose.
The following files are included in packaged workbooks:
--> Background images
--> Custom geocoding
--> Custom shapes
--> Local cube files
--> Microsoft Access files
--> Microsoft Excel files
--> Tableau extract files (.hyper or .tde)
--> Text files (.csv, .txt, etc.)
質問 # 146
What are two methods for renaming a field in a visualization? Choose two.
- A. From the Data pane, click and hold on the field until the name is editable.
- B. From the Format menu, select Field Labels.
- C. From the Data pane, use the field's drop-down menu and select Rename.
- D. From the Data pane, right-click the field and select Replace References.
正解：A、C
解説：
In Tableau, you can rename a field directly in the Data pane by clicking and holding on the field name until it becomes editable, allowing you to type a new name. Alternatively, you can use the drop-down menu associated with the field in the Data pane and select the "Rename" option. Both methods provide a quick and easy way to change the name of a field without affecting the underlying data structure. The "Format menu" and "Replace References" option do not apply to renaming fields.
質問 # 147
True or False: When you drag additional tables to the logical layer canvas, Tableau automatically attempts to create the relationship based on existing key constraints and matching fields to define the relationship. If it can't determine the matching fields, then relating these tables is not possible.
- A. True
- B. False
正解：B
解説：
Tables that you drag to the logical layer of the Data Source page canvas must be related to each other. When you drag additional tables to the logical layer canvas, Tableau automatically attempts to create the relationship based on existing key constraints and matching fields to define the relationship. If it can't determine the matching fields, you will need to select them.
If no constraints are detected, a Many-to-many relationship is created and referential integrity is set to Some records match. These default settings are a safe choice and provide the most a lot of flexibility for your data source.
質問 # 148
Which of the following are true about dimensions?
- A. They contain contain numeric, quantitative values
- B. They contain qualitative values (such as names, dates, or
geographical data) - C. Dates are mostly placed in dimensions by default for relational data sources
- D. They affect the level of detail in the view
正解：B、C、D
解説：
Measures contain numeric quantitative values hence that option is incorrect.
Reference 1: https://help.tableau.com/current/pro/desktop/en-us/datafields_typesandroles.htm Reference 2: https://help.tableau.com/current/pro/desktop/en-us/dates.htm
質問 # 149
Which of the following are the options to export the data used to build the view / visualisations?
- A. PDF File
- B. MS Access Database
- C. CSV file
- D. JSON format
正解：B、C
解説：
You can export the data in a Tableau data source, including all or part of the records from your original data.
Alternatively, you can export only the portion of data used to generate the view.
Since the question mentions the data used to build the view, we'll focus on that :
*Export data in the view to Microsoft Access or .csv*
Export the data that is used to generate the view as an Access database (Windows only) or .csv file (Mac only).
1) In Tableau Desktop, select Worksheet > Export > Data.
2) Select a location and type a name for your Access database or .csv file.
3) Click Save.
4) If you're on Windows, the Export Data to Access dialog box displays to give you the option to immediately use the new Access database and continue working in Access without interrupting your work flow.
Graphical user interface, text, application, email Description automatically generated
質問 # 150
Which of the following are valid ways to italicize Tooltip content in Tableau?
- A. Click on Tooltip in the Marks card, select the text, and then use the Italics option
- B. Click on Format in the Menu bar, choose Font, and then edit the
Tooltip options to italicize the font - C. Click on Worksheet in the Menu bar, select Tooltip, and then use
the italics option - D. Click on Dashboard in the Menu bar, select Tooltip, and then use the italics option
正解：A、B、C
解説：
The only incorrect option is - Click on Dashboard in the Menu bar, select Tooltip, and then use the italics option.
This option doesn't exist. See below:
The rest of the options do exist, and therefore are correct:
Graphical user interface, text, application Description automatically generated
質問 # 151
Dragging a ______________ to colour creates distinct colours for each item whereas dragging a
______________ to colour creates a gradient
- A. Continuous Value, Discrete Value
- B. Geographic Value, Discrete Value
- C. Discrete value, Continuous Value
- D. Longitude, Latitude
正解：C
解説：
Remember that dragging a discrete value to colour creates distinct colours for each item whereas dragging a continuous value to colour creates a gradient. ( Same for Map ) From the official documentation:
質問 # 152
Which of the following are valid reasons to use a Tableau Data Extract (.tde) over Live Connections?
- A. Fast to create
- B. Help improve performance
- C. To support additional functionality such as count distinct
- D. To have access to the freshest possible data at all times
正解：A、B、C
解説：
Explanation
From the official documentation, the following are the major advantages of using Tableau Data Extracts:
From Tableau 2020.2 onwards, .hyper is the recommended way since it is faster than .tde!
質問 # 153
True or False: LEFT JOIN returns all rows from the left table, with the matching rows in the right table
- A. False
- B. True
正解：B
解説：
This is true, indeed!
The LEFT JOIN keyword returns all records from the left table (table1), and the matched records from the right table (table2). The result is NULL from the right side, if there is no match.
質問 # 154
Which two functionalities can you provide to consumers by adding a parameter to a visualization? Choose two.
- A. Download the underlying data as a CSV file.
- B. Change the results of calculations in the visualization.
- C. Create a new field in the data source.
- D. Change fields in the visualization.
正解：B、D
解説：
In Tableau, parameters are dynamic values that can replace a constant in calculations, filters, and reference lines. If you have a parameter controlling a calculation, changing the parameter value can change the results of that calculation, thus impacting the visualization. Parameters can also be used to switch between different fields in the visualization; for example, allowing users to choose which measure or dimension to display.
質問 # 155
Which of the following can you use to create a Histogram?
- A. 1 measure
- B. 2 dimensions
- C. 1 dimension
- D. 2 measures
正解：A
解説：
A histogram is a chart that displays the shape of a distribution. A histogram looks like a bar chart but groups values for a continuous measure into ranges, or bins.
The basic building blocks for a histogram are as follows:
Demo :
質問 # 156
Which two filter modes can you use with continuous filters? Choose two.
- A. Single Values
- B. Multiple Values
- C. Special
- D. Range of Values
正解：C、D
解説：
According to the Tableau Help, there are two filter modes for continuous filters: Range of Values and Single Value. The help also states that "Range of Values lets you specify a minimum and maximum value for the filter using sliders or input fields" and "Single Value lets you select one value on a slider for the filter" (page
1).
質問 # 157
According to Tableau's 'Order of Operations', which of the following filters is applied FIRST?
- A. Dimension Filter
- B. Context Filter
- C. Extract Filter
- D. Measure Filter
正解：C
解説：
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 # 158
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究極のガイドはTDS-C01最新時間限定！今すぐダウンロード！：https://www.goshiken.com/Tableau/TDS-C01-mondaishu.html
2024年最新のな厳密検証されたTDS-C01学習合格ガイドでベズトお試しセット：https://drive.google.com/open?id=1IE3OGN3CrGyqJiNYxH3nCx8T71SSsd7G