[2023年05月]更新のTableau TDS-C01日本語実際のブレーン知能問題集
合格できるTDS-C01日本語試験更新されたTDS-C01日本語試験問題集PDFを獲得2023年更新
質問 # 84
ディメンションを [列] シェルフにドラッグし、メジャーを [行] シェルフにドラッグして棒グラフを作成するとします。積み上げ棒グラフを作成するのは次のうちどれですか?
- A. 別のメジャーを [マーク] カードの [色] にドラッグする
- B. 別のディメンションを [行] シェルフにドラッグする
- C. 別のディメンションを [マーク] カードの [色] にドラッグする
- D. 別のメジャーを [列] シェルフにドラッグする
正解：C
解説：
Very important question for the exam and appears quite a lot too.
The correct answer is - By dragging another dimension to Color on the Marks card.
This is what the question says we have already created. Now to convert this into a Stacked bar chart, we will drop another dimension on Color in the Marks card.
The rest won't create stacked bar charts, and hence are incorrect choices. The best way to answer such questions on the real exam is to quickly do what the options say and see if they satisfy the requirements in the question.
質問 # 85
ライブ接続で Tableau データ抽出 (.tde) を使用する正当な理由は次のうちどれですか?
- A. 個別のカウントなどの追加機能をサポートするため
- B. 作成が速い
- C. 常に最新のデータにアクセスできるようにするため
- D. パフォーマンスの向上に役立ちます
正解：A、B、D
解説：
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 # 86
次の点のうち、Viz アニメーションについて正しいものはどれですか?
- A. 特定のワークシートでのみオンにできます
- B. アニメーションは、Web のマップ、ポリゴン、および密度マークでうまく機能します。
ブラウザ - C. ワークブック全体で一度にオンにすることができます
- D. シーケンシャル アニメーションは時間がかかりますが、複雑な変更を行います
段階的に提示することでより明確に
正解：A、C、D
解説：
All of the given options are true except - Animations work well with maps, polygons, and density marks in web browsers.
From the official documentation:
As seen above, we can either turn the animations for the entire workbook (upper red box), or only for the current sheet ( lower red box )
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.
質問 # 87
Tableau Server の本番環境での使用に推奨される RAM の最小量はどれくらいですか?
- A. 8GB
- B. 32GB
- C. 64GB
- D. 16GB
正解：B
解説：
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 # 88
拡大画像
このビューは Tableau では何と呼ばれていますか?
- A. 寸法と寸法
- B. 窓ガラス
- C. データ ペイン
- D. 分析ペイン
正解：C
解説：
Tableau displays data source connections and data fields for the workbook in the Data pane on the left side of the workspace.
The Data pane includes:
Dimension fields - Fields that contain qualitative values (such as names, dates, or geographical data). You can use dimensions to categorize, segment, and reveal the details in your data. Dimensions affect the level of detail in the view. Examples of dimensions include dates, customer names, and customer segments.
Measure fields - Fields that contain numeric, quantitative values can be measured. You can apply calculations to them and aggregate them. When you drag a measure into the view, Tableau applies an aggregation to that measure (by default). Examples of measures: sales, profit, number of employees, temperature, frequency.
For more information on what dimensions and measures are, see Dimensions and Measures, Blue and Green.
Calculated fields - If your underlying data doesn't include all of the fields you need to answer your questions, you can create new fields in Tableau using calculations and then save them as part of your data source. These fields are called calculated fields.
For more information on calculated fields, see Create Custom Fields with Calculations.
Sets - Subsets of data that you define. Sets are custom fields based on existing dimensions and criteria that you specify. For more information, see Create Sets.
Named sets from an MS Analysis Services server or from a Teradata OLAP connector also appear in Tableau in this area of the Data pane. You can interact with these named sets in the same way you interact with other custom sets in Tableau.
Parameters - Values that can be used as placeholders in formulas, or replace constant values in calculated fields and filters. For more information, see Create Parameters.
質問 # 89
正誤問題: テーブルを関連付ける場合、リレーションシップを定義するフィールドは同じデータ型である必要があります。
- A. 偽
- B. 真
正解：B
解説：
According to the official documentation, the following are the requirements for using relationships:
1) When relating tables, the fields that define the relationships must have the same data type. Changing the data type in the Data Source page does not change this requirement. Tableau will still use the data type in the underlying database for queries.
2) You can't define relationships based on geographic fields.
3) Circular relationships aren't supported in the data model.
4) You can't edit relationships in a published data source.
5) You can't define relationships between published data sources.
6) Your workbook must use an embedded data source for you to be able to edit relationships and performance options in the Data Source page in Tableau Online or Tableau Server.
質問 # 90
通常、2 つのテーブルを結合すると、
- A. 行数の減少
- B. 列数の増加
- C. 行数の増加
- D. 列数の減少
正解：C
解説：
From the official Tableau documentation:
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.
質問 # 91
____________ 並べ替えの場合、データがどのように変化しても、値は常に保持した並べ替え順序のままになります。
- A. 階層
- B. マニュアル
- C. ランダム
- D. トポロジカル
正解：B
解説：
For a manual sort, no matter how the data changes, the values will always stay in the sort order you kept stuff in.
From the official website:
質問 # 92
地理データ テーブルを使用して、各色の在庫率を示す棒グラフを作成します。カラーレッドの平均在庫率は? 答えを小数点以下 2 桁まで正しく表示してください。
- A. 97.12%
- B. 96.46%
- C. 95.12%
- D. 99.46%
正解：A
解説：
Not too tough. Follow along the steps:
Drag Color to Filter and choose Red:
3) Now to display the percentage correctly, lets format it. Click on the In Stock % pill in the Row shelf, and select format:
And your final view will look like :
質問 # 93
____________ および ____________ の値を含む次元は連続できません。
- A. 日付と時刻
- B. 文字列
- C. 日付
- D. ブール値
正解：B、D
解説：
According to Tableau's official documentation -
質問 # 94
境界線と背景色を使用するとダッシュボードの項目を視覚的に強調できますが、_________ を使用すると項目を正確に配置できます。
- A. 間隔
- B. 縁取り
- C. タイリング
- D. パディング
正解：D
解説：
Padding lets you precisely space items on dashboard, while borders and background colors let you visually highlight them. Inner padding sets the spacing between item contents and the perimeter of the border and background color; outer padding provides additional spacing beyond the border and background color.
質問 # 95
ビジュアライゼーションでマーク ラベルを表示する有効な方法は次のうちどれですか?
- A. メジャーをマーク カードのテキスト ラベルにドラッグします。
- B. ツールバーの [マーク ラベルを表示] アイコンをクリックします。
- C. メニュー バーの [分析] をクリックし、[マーク ラベルの表示] を選択します。
- D. メニュー バーの [データ] をクリックし、[マーク ラベルの表示] を選択します。
正解：A、B、C
解説：
The following showcase how you can show mark labels. Using the Sample Superstore dataset:
1) Let's create a Bar chart showing the sales for each sub-category:
2) Now you can show labels by:
2.1) Click on Show Mark Labels Icon in the Toolbar ( easiest )
2.2) Drag Sales to the Text icon in the Marks Card:
2.3) Click on Analysis -> Show mark labels from the Tableau menu bar:
質問 # 96
バージョン 10.5 以降、新しい抽出を作成すると、.tde 形式ではなく __________ 形式が使用されます。
- A. .twbx
- B. .tds
- C. .tdex
- D. .ハイパー
正解：D
解説：
Beginning in version 10.5, when you create a new extract, it uses the .hyper format instead of the .tde format.
Extracts in the .hyper format take advantage of the improved data engine, which supports the same fast analytical and query performance as the data engine before it, but for even larger extracts.
Although there are many benefits of using .hyper extracts, the primary benefits include the following:
1) Create larger extracts: You can create extracts with billions of rows of data. Because .hyper extracts can support more data, you can consolidate .tde extracts that you previously had to create separately into a single .hyper extract.
2) Create and refresh extracts faster: While Tableau has always optimized performance for creating and refreshing extracts, version 2020.3 supports faster extract creation and refreshes for even larger data sets.
3) Experience better performance when interacting with views that use extract data sources: Although smaller extracts continue to perform efficiently, larger extracts perform more efficiently.
質問 # 97
______________ には、ビジュアライゼーション、ビジュアライゼーションの作成に必要な情報、およびデータ ソースのコピーが含まれています。
- A. Tableau ブックマーク (.tbm)
- B. Tableau ワークブック (.twb)
- C. Tableau パッケージ ワークブック (.twbx)
- D. Tableau データ抽出 (.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 # 98
可変サイズのビンを作成するには、____を使用します
- A. 表計算
- B. 計算フィールド
- C. セット
- D. グループ
正解：B
解説：
One way to view a measure in Tableau Desktop is to split it into bins. You can think of bins as buckets based on a range of values. For example, say you have a measure that represents age. Instead of aggregating the measure to calculate the average age, you can bin the measure to define age groups: 0-5, 6-10, 11-15, and so on. Then you can count the number of people in each age group.
Create a calculated field for variable bin size
Step 1
Select Analysis > Create Calculated Field.
Step 2
In the Calculated Field dialog box, complete the following steps:
質問 # 99
通常、Tableau の日付は ______________ として扱われます
- A. 寸法
- B. 対策
正解：A
解説：
For relational data sources, dates and times are automatically placed in the Dimensions area of the Data pane and are identified by the date or date-time icon. For example, the Order Date and Ship Date dimensions from an Excel data source are shown below:
When you place a relational date on a shelf, the field name is automatically modified to reflect the default date level. Tableau defines the default date level to be the level at which there are multiple instances. For example, if the date field includes multiple years, the default level is year. However, if the date field contains data for just one year but includes multiple months, then the default level is month.
質問 # 100
Tableau で URL アクションを作成するときに許可される URL プレフィックスは次のうちどれですか?
- A. HTTPS
- B. SMTP
- C. FTP
- D. HTTP
正解：A、C、D
解説：
A URL action is a hyperlink that points to a web page, file, or other web-based resource outside of Tableau. You can use URL actions to create an email or link to additional information about your data. To customize links based on your data, you can automatically enter field values as parameters in URLs.
質問 # 101
Tableau は ____________ ディメンションと ______________ メジャーを自動生成します
- A. 2 、 2
- B. 1 、 2
- C. 2 、 3
- D. 1 、 4
正解：D
解説：
Tableau auto-generates :
1 Dimension - Measure Names
4 Measures - Latitude, Longitude, Number of records, Measure Values
Starting with Tableau 2020.2, every table in a data source has a Count field, in the form of NameofTable(Count). The table count field is an automatically generated, calculated field. (THIS IS NOT PRESENT IN VERSION 2020.1 ON WHICH THE EXAM IS CURRENTLY BASED)
質問 # 102
次のうち、Tableau で利益率を計算する正しい方法はどれですか?
- A. SUM(利益) / SUM(売上)
- B. 売上/利益
- C. SUM(売上)/SUM(利益)
- D. 利益 / 売上高
正解：A
解説：
THIS IS A VERY IMPORTANT QUESTION
Aggregation is an important concept to consider when creating calculated fields. A calculated field for SUM([Profit]) / SUM([Sales]) will give you a very different answer than [Profit] / [Sales], even though both formulas are valid.
If you do not provide the aggregation within the calculated field, Tableau will calculate the equation for every record ( row ) in your analysis, then aggregate the answers for all of the rows together when the calculated field is added to the view.
In simple terms, if specify the aggregation such as SUM, what Tableau will do is that it will first calculate the sum of the Profit column ( say x ), then calculate the sum of the Sales column ( say y ), and then simply apply x/y ---> This is what we expect! Perfect!
BUT, if you don't specify the aggregation, it will go to every single ROW, perform Profit / Sales, and then aggregate the answers calculated for each row. This is simply NOT what we wan't!
An example:
質問 # 103
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