時間限定無料ダウンロード 最新のDesktop-Specialist問題集で2023年最新のDesktop-Specialist試験問題
最新のTableau Desktop-Specialist認定の練習テスト問題
Tableau Desktopスペシャリスト認定試験は、データソース、データの準備、視覚化の作成、洞察の共有など、さまざまな分野で候補者の知識とスキルを評価する包括的な試験です。この試験は、複数選択の質問とパフォーマンスベースのタスクで構成されており、Tableauデスクトップを使用して実際の問題を解決する候補者の能力をテストします。試験はオンラインで行われ、候補者の自宅やオフィスの快適さから取得できます。
質問 # 16
Question 45: Skipped
You have just created a histogram and now want to be able to change the size of bins dynamically. Using which of the following will easily satisfy your requirement?
- A. Sets
- B. Groups
- C. Parameters
- D. Calculation
正解：C
解説：
Explanation
A parameter is a global placeholder value such as a number, date, or string that can replace a constant value in a calculation, filter, or reference line.
For example, you may create a calculated field that returns True if Sales is greater than $500,000 and otherwise returns False. You can replace the constant value of "500000" in the formula with a parameter.
Then, using the parameter control, you can dynamically change the threshold in your calculation.
For example -
質問 # 17
You have cleaned a data source properly, created some calculated fields and renamed some columns. You want to save these changes for future use cases. Which of the following would BEST satisfy this requirement?
- A. Save it as a .twm file
- B. Save it as a .tds file
- C. Save it as a .twbx file
- D. Save it as a .twb file
正解：B
解説：
Explanation
After making changes to Data, we can save that new data source as a .tds file. To do so, go to data menu on top and then choose your current connected data source. Then next click on Add to Saved Data sources. This will save all calculated fields, changes to fields etc. It will be saved in My Tableau Repository -> Mydatasources. This will then also appear on Tableau Home Page under saved data sources like SampleSuperStore.
Note: 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.
twb and .twbx are not the BEST solutions since the questions nowhere mentions that we need to store our workbooks as well.
twm is a bookmark which contains a single worksheet and are an easy way to quickly share your work.
質問 # 18
______________ refers to the level of detail for a piece of data, wherever you are looking.
- A. Data LOD
- B. Data connectivity
- C. Data Cleanliness
- D. Data granularity
正解：D
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 # 19
True or False : Bins can be created on dimensions
- A. False
- B. rue
正解：B
解説：
Explanation
Bin are a user-defined grouping of numerical data in the data source.
According to the official Tableau documentation: It's sometimes useful to convert a continuous measure (or a numeric dimension) into bins.
Have a look at the following image. When we right click a measure, we get the following options:
However, for a dimension (this is because the of this dimension is a string:
But what if we have a dimension of type NUMBER (NUMERIC DIMENSION)? See below:
We can clearly create bins from dimensions too - they just have to be numeric :)
For more information, please refer to: https://help.tableau.com/current/pro/desktop/en-us/calculations_bins.htm
質問 # 20
Is it possible to use measures in the same view multiple times (e.g. SUM of the measure and AVG of the measure)?
- A. No
- B. Yes
正解：B
解説：
Explanation
Yes, it is very much possible to use measures in the same view multiple times. For example, refer to the image below:
We are using BOTH the Sum of the revenue and the of the revenue in the same view!
質問 # 21
When using Animations in a Tableau, which of the following is the default duration for animations?
- A. 0.2s
- B. 0.4s
- C. 0.5s
- D. 0.3s
正解：D
解説：
Explanation
The LATEST Tableau Desktop Sepcialist exam blueprint now requires you to know some basics about animations as well!
NOTE: Animations are DISABLED by default and must be manually enabled.
You can also reset all settings to default by clickin on 'Reset All'
質問 # 22
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：
Explanation
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 # 23
_______________ enables us to create workbooks and views, dashboards, and data sources in Tableau Desktop, and then publish this content to our own server.
- A. Tableau myServer
- B. Tableau Public
- C. Tableau Server
- D. Tableau Prep
正解：A
解説：
Explanation
Tableau SERVER enables us to create workbooks and views, dashboards, and data sources in Tableau Desktop, and then publish this content to our own server.
Moreover, as a Tableau Server administrator you will control who has access to server content to help protect sensitive data. Administrators can set user permissions on projects, workbooks, views, and data sources.
質問 # 24
You want to add Custom shapes to your visualisation. Where can you add these new shapes?
- A. In Program Files -> Tableau -> Shapes
- B. In My Documents -> My Tableau Repository -> Shapes
- C. In My Computer -> C: -> Tableau -> Shapes
- D. In Downloads -> My Tableau Repository -> Shapes
正解：B
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 # 25
Which Sub-Category had the least Profit in the Office Supplies category?
- A. Envelopes
- B. Fasteners
- C. Labels
- D. Binders
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 # 26
We can join a maximum of ______ tables in Tableau
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
Explanation
It is possible to join a maximum of 32 tables in Tableau!
質問 # 27
Which of the following would you use to connect to multiple tables in a single data source at once?
- A. A Join
- B. A Set
- C. A Hierarchy
- D. A Blend
正解：A
解説：
Explanation
The data that you analyze in Tableau is often made up of a collection of tables that are related by specific fields (that is, columns). Joining is a method for combining data on based on those common fields. The result of combining data using a join is a virtual table that is typically extended horizontally by adding columns of data.
For example, consider the following two tables originating from a single data source:
We can combine these 2 tables, simply by joining the tables on ID to answer questions like, "How much was paid in royalties for authors from a given publisher?". By combining tables using a join, you can view and use related data from different tables in your analysis.
質問 # 28
What is the minimum amount of RAM recommended for any production use of Tableau Server?
- A. 32GB
- B. 64GB
- C. 16GB
- D. 8GB
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 # 29
Which of the following can you add a reference line to?
- A. Calculated Fields
- B. Groups
- C. Measures
- D. Dimensions
正解：A、C
解説：
Explanation
You can add reference lines, bands, distributions, or (in Tableau Desktop but not on the web) box plots to any continuous axis in the view.
Reference Lines - You can add a reference line at a constant or computed value on the axis. Computed values can be based on a specified field. You can also include confidence intervals with a reference line.
質問 # 30
How does Tableau know at which level to aggregate values?
- A. Values are always aggregated at the level of granularity of the worksheet.
- B. Values are always aggregated at the level of the Date Part
- C. Aggregation is always done by using Tableau special formulas
- D. Tableau doesn't aggregate values, we do!
正解：A
解説：
Explanation
In Tableau, you can aggregate measures or dimensions, though it is more common to aggregate measures.
Whenever you add a measure to your view, an aggregation is applied to that measure by default. The type of aggregation applied varies depending on the context of the view.
When you add a measure to the view, Tableau automatically aggregates its values. Sum, average, and median are common aggregations; for a complete list, see List of Predefined Aggregations in Tableau.
The current aggregation appears as part of the measure's name in the view. For example, Sales becomes SUM(Sales). Every measure has a default aggregation which is set by Tableau when you connect to a data source. You can view or change the default aggregation for a measure-see Set the Default Aggregation for a Measure.
You can change the aggregation for a measure in the view from its context menu:
質問 # 31
Using the Time Series table, create a cross-tab showing sales for each Assortment broken down by Year and Quarter. In Q4 of October 2017, what was the Average sales amount for the Hardware assortment?
- A. 1,461
- B. 111,060
- C. 112,256
- D. 1,222
正解：C
解説：
Explanation
If you chose 111,060 you were SO close to the correct answer but made a small mistake - you didn't change the aggregation to AVERAGE! This is one of the common mistakes many test takers make, so keep this in mind.
To reach the correct answer, follow the steps below:
1) Draw Assortment to the Column shelf, and drag Year to the Rows Shelf. Then Drill down further on Year to accomodate Quarters and Months as well!
Although this seems enough, DON'T FORGET to change the aggregation like in the next step, which will completely change the values!
* The correct answer as you can see is 1,461 - Sales for Harware Assortment in 2017 Q4, October
質問 # 32
Skipped Join the Geo Data and Time Series Table on the Item Number ID column, and display the Store count for every State on a Map. What was the Store count in 2017 for Texas (TX)?
Join the Geo Data and Time Series Table on the Item Number ID column, and display the Store count for every State on a Map. What was the Store count in 2017 for Texas (TX)?
- A. 293,202
- B. 592,593
- C. 416,702
- D. 336,908
正解：C
解説：
Explanation
Since you need BOTH State and the YEAR, we need to use an Inner Join.
Follow the steps below:
質問 # 33
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Tableau Desktop-Specialist試験は、知識に基づくセクションとスキルに基づくセクションの2つに分かれています。 知識に基づくセクションでは、データ接続、データブレンディング、計算、および基本的な可視化デザイン原則などのトピックがカバーされます。スキルに基づくセクションでは、候補者がデータから実用的な洞察を作成する能力を実証する一連のタスクを完了する必要があります。
Tableau Desktop-Specialistの認定は、Tableau Desktopを使用したデータ可視化と分析のスキルを示したい個人に最適です。この認定は、データ分析、ビジネスインテリジェンス、およびデータ可視化のキャリアを進めたい個人に役立ちます。
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