Tableau Desktop-Specialistテストエンジン練習テスト問題、試験問題集
100%無料Desktop-Specialist日常練習試験には150問があります
Tableau Desktop Specialist認定試験は、Tableauデスクトップを使用する際の個人の知識とスキルを検証するグローバルに認められた認定です。これは、Tableauデスクトップを使用して雇用主または潜在的な雇用主に習熟度を示したい個人にとって貴重な資産です。また、Tableau Desktopを使用する組織にとって貴重な資産になる可能性があります。これは、認定された個人が効果的なデータ視覚化ソリューションの構築と維持に役立つためです。
Tableau Desktopスペシャリスト認定試験は、Tableau Desktopソフトウェアを使用する際の個人の知識とスキルを検証するグローバルに認められた認定です。この試験は、データの視覚化と分析のためにTableauデスクトップを使用する習熟度を実証したい専門家向けに特別に設計されています。この認定は、大手データ視覚化会社であるTableauによって提供されており、世界中の雇用主によって認められています。
質問 # 20
If you have a dashboard and are displaying its filter, how can you rearrange it?
- A. By clicking on the filter title and dragging it.
- B. By clicking on the dropdown and dragging the filter
- C. By clicking anywhere inside the filter and dragging it.
- D. By clicking on the 2 lines on top and dragging the filter.
正解：D
解説：
Explanation
You can drag the filter by clicking on the 2 lines on top, and then dragging the filter as shown:
質問 # 21
Which of the following is a benefit of using a Tableau Data Source (.tds)?
- A. To create a local copy of a subset or entire data set that you can use to share data with others, when you need to work offline, and improve performance.
- B. To hold one or more worksheets, plus zero or more dashboards and stories.
- C. To not contain the actual data but rather the information necessary to connect to the actual data as well as any modifications you've made on top of the actual data such as changing default properties, creating calculated fields etc
- D. To create a single zip file that contains a workbook along with any supporting local file data and background images. This is great for sharing your work with others who don't have access to the original data.
正解：C
解説：
Explanation
The following are the official definitions from the Tableau documentation for the various file types:
1) .tds (Tableau Data Source) - To not contain the actual data but rather the information necessary to connect to the actual data as well as any modifications you've made on top of the actual data such as changing default properties, creating calculated fields etc. (CORRECT ANSWER)
2) .twbx ( Tableau packaged workbook) - To create a single zip file that contains a workbook along with any supporting local file data and background images. This is great for sharing your work with others who don't have access to the original data.
3) Extract (.hyper or .tde) - To create a local copy of a subset or entire data set that you can use to share data with others, when you need to work offline, and improve performance.
3) (.twb) Workbooks - To hold one or more worksheets, plus zero or more dashboards and stories.
質問 # 22
Is it possible to make a Measure discrete?
- A. No
- B. Yes
正解：B
解説：
Explanation
Of course! Follow along:
Right click on any measure, and choose Discrete as shown:
Once you do this, the green pill becomes blue in colour, indicating that it is now Discrete!
質問 # 23
What does the following icon do in Tableau?
Larger image
- A. Create a Story and Dashboard both
- B. Create a Story
- C. Create a Dashboard
- D. Create a Worksheet
正解：C
解説：
Explanation
The icon shown is used to add a new Dashboard! From the official documentation:
質問 # 24
Which of the following is NOT a valid official data source in Tableau Desktop?
- A. SAP HANA
- B. PostgreSQL
- C. Google Firebase
- D. Amazon Redshift
正解：D
解説：
Explanation
Presently, there is no official way to connect your data in Firebase directly with Tableau Desktop.
A workaround however can be to export your Firebase data into Google BigQuery, and then connect it to Tableau Desktop.
But then again, it is a workaround and not an official out-of-the-box solution.
The following are the available Data sources available as of now:
* Server
* File
質問 # 25
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：
Explanation
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 # 26
Broadly speaking, when users connect to Tableau, the data fields in their data set are automatically assigned a
____________ and a ____________.
- A. Data type, Value
- B. role, type
- C. dimension, measure
- D. type, role
正解：B
解説：
Explanation
When users connect to Tableau, the data fields in their data set are automatically assigned a role and a type.
Role can be of the following two types:
1) Dimension
2) Measure
Type can be of the following :
1) String
2) Number
3) Geographic
4) Boolean
5) Date
6) Date and Time
質問 # 27
Using the cwurData table, create a cross-tab showing the number of Publications per Country broken down by Institution, and filtered by Country to only show United Kingdown (UK). For the University of Manchester, what percent of the total publications were contributed in 2014?
- A. 23.497%
- B. 22.404%
- C. 25.683%
- D. 28.415%
正解：B
解説：
Explanation
Phew! Tricky one for sure. This question tests multiple concepts and will help you revise them. We'll be using filters, as well as quick table calculations (percent of total) for this one.
1) Firstly, let's drag Country and to the Rows shelf, and year (discrete) to the Columns shelf.
Then, drag Publications to the Text Icon in the Marks Shelf. The following is our view:
質問 # 28
Download the Dataset from:
https://drive.google.com/file/d/12AYHfiPWkwBmvH0zbumOURgUX6Az00Rw/view?usp=sharing Using the Time Series Table, create a line chart to show Sales over time. Which Month and Year witnessed the lowest Sales?
- A. September 2017
- B. December 2017
- C. March 2018
- D. January 2018
正解：D
解説：
Explanation
Follow the steps to get the correct answer : January 2018
* We are talking about dates, so use the Time series sheet as follows:
* Next, the following should be your view and clearly, January 2018 is the lowest point:
Read more about dates:
https://interworks.com/blog/rcurtis/2017/01/30/tableau-deep-dive-dates-introduction-dates/
質問 # 29
In Tree maps, the size begins with the largest rectangle on the ________________ and the smallest rectangle on the ________________.
- A. top left bottom left
- B. top left, bottom right
- C. top right, bottom left
- D. top right, bottom right
正解：C
解説：
Explanation
Tree maps size begins from maximum in top left to smallest in bottom right.
See below to learn how to create a TreeMap and add colours to it:
質問 # 30
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：
Explanation
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 # 31
Using the CoffeeChain table, create a crosstab showing the Total Expenses per State and add Column Grand Totals to the view. Now group the states of New York, California and Washington. What percent of the total sales does this group contribute?
- A. 23.39%
- B. 29.49%
- C. 25.79%
- D. 27.73%
正解：D
解説：
Explanation
We need to use the concept of Groups for this question. Follow along:
1) First, Drag State to the Rows shelf, and Total Expenses to the Text Mark on the Marks Shelf:
2) Now, remove the SUM aggregation from Total Expenses, and add a quick table calculation -> Percent of total:
3) Next, Select the States of New York, California and Washington -> And then click the paperclip icon:
We can see the answer already : 23.386% in the view above (even before grouping!)
4) Finally, we get the following view and our answer:
質問 # 32
________________ files are shortcuts for quickly connecting to the original data that you use often. Data source files do not contain the actual data but rather the information necessary to connect to the actual data as well as any modifications you've made on top of the actual data such as changing default properties, creating calculated fields, adding groups, and so on.
- A. .twb
- B. .tde
- C. .tbm
- D. .tds
正解：D
解説：
Explanation
According to the official Tableau documentation:
Tableau data source files have the .tds file extension. Data source files are shortcuts for quickly connecting to the original data that you use often. Data source files do not contain the actual data but rather the information necessary to connect to the actual data as well as any modifications you've made on top of the actual data such as changing default properties, creating calculated fields, adding groups, and so on. For more information, see Save Data Sources.
質問 # 33
__________ is a technique in Tableau which will identify marks with similar characteristics
- A. Grouping
- B. Sets
- C. Union
- D. Clustering
正解：D
解説：
Explanation
Cluster analysis partitions marks in the view into clusters, where the marks within each cluster are more similar to one another than they are to marks in other clusters.
質問 # 34
True or False: It is possible to add a field to more than one hierarchy
- A. True
- B. False
正解：A
解説：
Explanation
Yes! It is possible to duplicate a field and add it to more than one hierarchy. Right click and choose duplicate.
質問 # 35
You can _______________ your data to combine two or more tables by appending values (rows) from one table to another
- A. join
- B. concatenate
- C. union
- D. blend
正解：C
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 # 36
How can you change the Default Aggregation for a measure in Tableau?
- A. By right clicking the measure -> Default properties and choosing Aggregation
- B. By changing its properties manually every time we need to use it
- C. By right clicking the dimension -> Default properties and choosing Aggregation
- D. By double clicking on the measure, and then choosing Window -> Default Aggregation
正解：D
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 # 37
A Tableau Support case can be opened in which of the following valid ways?
- A. Contacting Salesforce using their website
- B. Using the Tableau learn website
- C. Using the Developer Community Forum
- D. Using the support option on the Tableau website
正解：D
解説：
Explanation
It is possible to open a Tableau support case by visiting the following link :
https://www.tableau.com/support/case
質問 # 38
What is the following icon in the Data pane used to do?
Larger image
- A. Extract Data
- B. View Data
- C. Sort Data
- D. Clean Data
正解：B
解説：
Explanation
View Data allows you to inspect your data in a spreadsheet-like layout. You can view data either for the data source as a whole, or to see the underlying data for an individual mark or a group of marks. In a worksheet, the rows that you see in the View Data window are always scoped to the current selection or the current view.
The View Data window displays as much of the data as possible by default, up to 10,000 rows. Field names are shown as column headers and can be dragged and dropped to change their display order. Click a column header to sort the values in that column.
From the official website:
質問 # 39
_____________ is a snapshot of the data that Tableau stores locally. Good for very large datasets of which we only need few fields.
- A. Tableau Workbook (.twb)
- B. Tableau Data Source (.tds)
- C. Tableau Data Extract (.tde)
- D. Tableau Packaged Workbook (.twbx)
正解：C
解説：
Explanation
Tableau Data Extract (TDE) is a snapshot of the data that Tableau stores locally. Good for very large datasets of which we only need few fields. Performance is optimised because it queries its own database engine instead of the local data source.
When you create an extract of your data, you can reduce the total amount of data by using filters and configuring other limits. After you create an extract, you can refresh it with data from the original data. When refreshing the data, you have the option to either do a full refresh, which replaces all of the contents in the extract, or you can do an incremental refresh, which only adds rows that are new since the previous refresh.
Extracts are advantageous for several reasons:
1) Supports large data sets: You can create extracts that contain billions of rows of data.
2) Fast to create: If you're working with large data sets, creating and working with extracts can be faster than working with the original data.
3) Help improve performance: When you interact with views that use extract data sources, you generally experience better performance than when interacting with views based on connections to the original data.
4) Support additional functionality: Extracts allow you to take advantage of Tableau functionality that's not available or supported by the original data, such as the ability to compute Count Distinct.
5) Provide offline access to your data: Extracts allow you to save and work with the data locally when the original data is not available. For example, when you are traveling.
質問 # 40
What will the following function return?
LEFT("Tableau", 3)
- A. An error
- B. ble
- C. Tab
- D. eau
正解：A
解説：
Explanation
The following is the official documentation for the String function LEFT:
質問 # 41
Using the Time Series Table, create a Line chart showing the Monthly Year over Year Growth for the Sales, broken down by Assortment. For the Electronics assortment, which Month had the most NEGATIVE value of Year over Year Growth?
Using the Time Series Table, create a Line chart showing the Monthly Year over Year Growth for the Sales, broken down by Assortment. For the Electronics assortment, which Month had the most NEGATIVE value of Year over Year Growth?
- A. June
- B. September
- C. July
- D. October
正解：D
解説：
Explanation
Follow along:
1) Drag Assortment and Year ID (choose Discrete Month) to Columns shelf, and Sales to the Columns Shelf.
For sales, click on the pill -> choose Quick Table calculation -> Year over Year growth.
The view should now look like:
It is clear that October with -55.3% had the lowest Year on Year growth.
質問 # 42
What is a story point in Tableau?
- A. A collection of dashboards
- B. A single worksheet or dashboard
- C. A collection of both worksheets and dashboards
- D. A collection of worksheets
正解：B
解説：
Explanation
In Tableau, a story is a sequence of visualizations that work together to convey information. You can create stories to tell a data narrative, provide context, demonstrate how decisions relate to outcomes, or to simply make a compelling case.
A story is a sheet, so the methods you use to create, name, and manage worksheets and dashboards also apply to stories (for more details, see Workbooks and Sheets). At the same time, a story is also a collection of sheets, arranged in a sequence. Each individual sheet (worksheet or dashboard) in a story is called a story point.
When you share a story -for example, by publishing a workbook to Tableau Public, Tableau Server, or Tableau Online-users can interact with the story to reveal new findings or ask new questions of the data.
質問 # 43
Which of the following are interactive elements that can be added to a dashboard for users?
- A. Filter Action
- B. Highlight Action
- C. URL Action
- D. Edit Tooltip Action
正解：B、C、D
解説：
Explanation
We can perform filter, URL and highlight actions out of the above given choices on a dashboard. Please refer to the image below:
質問 # 44
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