If you're looking for Tableau Advanced Interview Questions for Experienced or Freshers, you are in right place. There are a lot of opportunities from many reputed companies in the world. According to research Tableau Advanced has a market share of about 17.0%. So, You still have the opportunity to move ahead in your career in Tableau Analytics. Mindmajix offers Tableau Advanced Interview Questions 2023 that helps you in cracking your interview & acquire dream career as Tableau Developer.
A .twbx happens to be a zipped archive that contains a .twb as well as any external files like the extracts or the background images.
On the other hand, a .twb happens to be an XML document containing all selections as well as layouts that are made to have the Tableau workbook. No other data is provided here.
Tableau happens to be business intelligence software that gives allowance to anyone and everyone. By using Tableau, you will be able to get connected to the respective data and even create and visualize the interactive and shareable dashboards according to your requirements.
Stating the Tableau Products in brief, the list is as follows.
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The Tableau Product family consists of a wide range of products. Below mentioned is a complete list of it. Stating the definition in brief, the list is as follows:
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Tableau reader is nothing but an application for the desktop which comes absolutely free of cost. It enables customers to view the visualizations built in the Tableau Desktop by opening it seamlessly. Users can even filter and drill down the data. However, you cannot perform or edit any type of interaction.
On the contrary, Tableau online is just the hosted version of the Tableau server. Talking about the Tableau server, it is enterprise-oriented Tableau Software. Here, you will be able to publish the dashboards with the Tableau Desktop and even store them. Tableau online is just the hosted version of it.
Talking about the term ‘Dimensions', these are nothing but the descriptive attribute values for the various dimensions of every attribute. Dimensions are capable of defining a wide range of characteristics. Having the reference to a specific product key form, a dimension table is able to be consisted of product type, size, name, description as well as colors, apart from other attributes.
The term ‘Measures’ clearly defines the numeric metrics or the measurable quantities of the data that can clearly be analyzed by the dimension table. Talking about measures, they are stored in a particular table that contains foreign keys that refer to those associated dimension tables outstandingly.
The table associated with it is capable enough of supporting the data storage at the automatic level. Thus, it also gives the allowance for more number of records to get inserted at a time. Instantly, for example, a particular Sales table might have the product key, promotion key, customer key, and the sold items that closely refer to a particular event.
An enhanced and advanced way of viewing large volumes of data is safely defined as data visualization. It is a direct and precise way. Data visualization happens to be the visual representation of data in some particular form. That being said, the types are charts and graphs, and especially when you are unable to define them in text format.
You have the license to show the patterns, trends, as well as correlations through multiple data visualization tools and software. One of the best data visualization software is Tableau which is used by various businesses.
Tableau Server is the enterprise-level Tableau software by which users will be able to publish the dashboards with the help of Tableau Desktop. Users can also share them accordingly throughout the organization with the web-oriented Tableau server. This is capable of leveraging faster databases through active connections.
The concept of the context filter in Tableau is able to make the procedure of filtering in a smooth and straightforward way. It also establishes a hierarchy filtering where other filters that are present can refer to the individual context filer for the subsequent operations. The other filters process data that are passed via the context filter.
If you create one more context filter, then you would be to improve the performance. Users are not needed for building extra filters on the large data sources. Users can create context filters just by dragging a particular field in the ‘Filters’ bar. Then users need to right-click and select the ‘add to context’ option.
The tableau data server is the mode between users of Tableau and the data. It acts as the middleman. The data server is capable of allowing uploading and even sharing the extracts. It also preserves the database connection and reuses the calculation as well as field metadata. Any modifications that the user makes in the data-set or the parameters (other definitions, calculated field, and alliances), the data server of tableau will save and share them with others. Thus,
it also allows secure and managed dataset. In addition to this, users can also leverage the server’s resources in order to run the queries on the extracts without transferring them to the local device.
Tableau Desktop is one of the multiple Tableau products. It happens to be a self-orientated service business analytics which also acts like data visualization. It also helps in translating data pictures and enhances it with the optimized format. Tableau Desktop will give you a direct connection to the data from any of your data. Also, you can perform all your queries without even writing a single line of code. With the help of the tableau desktop, you will be able to import your data in the Tableau data engine from various sources. Moreover, you can also integrate them by combining the views in a particular interactive dashboard.
A group (or groups) happens to be a combination of the members' dimensions which will make a higher level of categories. Taking an example, if a user is working with a particular view that is capable only shows average test scores (by major), then the user might wish to obtain a group of certain majors altogether in order to create significant categories.
Stating the difference between Traditional BI Tools and Tableau, the point-wise information has been mentioned right below.
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In Tableau, aggregation and disaggregation are the modes that are used to develop the scatter plot in order to measure as well as compare data values. As the name suggests, ‘aggregation’ is nothing but the calculated form of a host of values that return the single numeric value. Just, for example, a measure of the value of 1, 3, 5, and 7, can return 1. You may create default aggregations for a specific measure that is not defined for users.
Various aggregations are supported by Tableau for a measure. For example, sum, median, average, count, so on and so forth. On the contrary, disaggregation of the data is referred to the viewing process of each and every data source row when the data is analyzed both dependently as well as independently.
Tableau Data Engine is an outstanding feature in Tableau. It has been designed analytically in order to achieve instant query responses. Moreover, it can also achieve predictive performance and integrate them into the existing data infrastructure in a seamless manner.
It is not limited to the entire data sets loading in the memory. If one is seen working with a large volume of data, it is time-taking to import, create and then sort the data. After which it speeds up eventually. The Tableau data engine is not an in-memory technology. The RAM is hardly used whereas; the data is kept in the disk.
Creating a calculated field in Tableau is very simple. You just need to check out the steps that are mentioned right below.
Step 1: First and foremost, you will have to clock the drop-down to Dimension’s right that is present on the Data panel.
Step 2: Select ‘Create >>Calculated Field’. This will open the calculation editor.
Step 3: Lastly, you will have to name the new field and then create your respective formula.
The steps of viewing the underlying SQL Queries in Tableau have been given below. Viewing provides two options.
Option 1: To create a performance record (Visit the workbook that has been established in the Tableau>>Settings and performance>> Performance Recording Help>> Settings and performance >> Stop performance recording)
Option 2: Check the live connection to the data source by checking log.txt and tabprotosrv.txt files.
The first copies or the subdivisions of the real data from sources is called data extracts. The workbooks that use the data extracts (instead of the live DB connections) happen to be faster. This is due to the fact that the extracted data gets imported into the Tableau Engine. After the data extraction, users are capable enough of publishing the workbooks respectively.
This also publishes the Tableau server extracts. Scheduled Refreshes are the task of scheduling for the extraction of data such that they are refreshed automatically when publishing workbooks with data extract are taking place. This removes the republishing burden for the workbook also.
A parameter happens to be a value passed to a program to customize any program for a specific purpose. It can be anything; a range of values or a string of text. It will allow you to provide any value in order to pass Tableau. A parameter will give the allowance to come up with the options or scenarios available in the data.
There are multiple filter types in Tableau which are actually quick in availability. These filters are availed by using the right-click button on the measure or dimension. These filters are known as Quick filters. They have enough functionality. Also, they are capable enough of solving almost all common filtering requirements.
You can use the group in the calculated field by proceeding with the below-mentioned steps. Read on.
Step 1: In the Data pane, you will have to right-click the group option. Choose the ‘Create Set’ option.
Step 2: After selecting the ‘Create Set’ dialog box, you will have to click OK.
The answer is yes, Tableau for MacOS is available but only if you have an active Tableau Desktop license. You will have to install the Tableau Desktop licenses on a minimum of two devices. Install one on Windows device and the other on your macOS device. The files that are created on a Windows device will work seamlessly on the Mac device as well.
Read the below-provided steps in order to know the procedure of creating stories in Tableau.
Step 1: First off, click the ‘New Story’ button.
Step 2: On the left-hand side of the story panel, drag the‘ Sales in the South’ worksheet.
Step 3: Add a caption by editing the text.
Step 4: In the story panel, choose ‘Blank’.
Step 5: Right-click the Burlington, choose Annotate >> Mark, click OK.
Step 6: Double-click the Story 1tab.
Step 7: Review your story by pressing Window >> Presentation mode.
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