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Free TDS-C01 Exam Braindumps (page: 6)

Page 5 of 56
PDF with 317 Questions

Which of the following are benefits of using Data Extracts in Tableau?

  1. Improved Performance
  2. Ability to use the data offline
  3. Working with freshest data at all times
  4. Faster to work with

Answer(s): A,B,D

Explanation:

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.

To work with the MOST up-do-date data, use a live connection instead!


Reference:

https://help.tableau.com/current/pro/desktop/en-us/extracting_data.htm



When you want to first apply a filter and THEN show the Top N or Bottom N elements, which of the following filters would you use?

  1. Data source Filter
  2. Extract Filter
  3. Context Filter
  4. None of the these

Answer(s): C

Explanation:

IMPORTANT QUESTION, PAY ATTENTION
By default, all filters that you set in Tableau are computed independently. That is, each filter accesses all rows in your data source without regard to other filters. However, you can set one or more categorical filters as context filters for the view. You can think of a context filter as being an independent filter. Any other filters that you set are defined as dependent filters because they process only the data that passes through the context filter.
You may create a context filter to:
1) Improve performance – If you set a lot of filters or have a large data source, the queries can be slow. You can set one or more context filters to improve performance.
2) Create a dependent numerical or top N filter – You can set a context filter to include only the data of interest, and then set a numerical or a top N filter.


Reference:

https://help.tableau.com/current/pro/desktop/en-us/filtering_context.htm



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?

  1. Save it as a .twm file
  2. Save it as a .twb file
  3. Save it as a .tds file
  4. Save it as a .twbx file

Answer(s): C

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.


Reference:

https://help.tableau.com/current/pro/desktop/en-us/environ_filesandfolders.htm



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

  1. True
  2. False

Answer(s): A

Explanation:

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


Reference:

https://www.tableau.com/about/blog/2016/8/take-note-these-10-handy-tableau-shortcuts-57561






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