1. What is Tableau?
Tableau is a business intelligence software that allows anyone to connect to respective data, and then visualize and create interactive, sharable dashboards.
2. What is data visualization?
Data visualization is viewed by many disciplines as a modern equivalent of visual communication. A primary goal of data visualization is to communicate information clearly and efficiently via statistical graphics, plots and information graphics. In other words, Data visualization refers to the techniques used to communicate data or information by encoding it as visual objects (e.g. points, lines or bars) contained in graphics.
3. What are the different Tableau Products and what is the latest version of Tableau?
Tableau offers five main products: Tableau Desktop, Tableau Server, Tableau Online, Tableau reader and Tableau Public.
Latest Version: Tableau Desktop version 10.4
4. What is Tableau Desktop?
Tableau Desktop is our primary tool for creating data visualizations. All your development is done here. From creating reports, charts, formatting them, putting them together as a dashboard all the work is done on Tableau Desktop.
5. What is Tableau Server?
Tableau Server is more of an enterprise level Tableau software. The dashboards you create are shared with other users using Tableau Server. When you upload(publish) a Dashboard to Tableau Server from Tableau Desktop, other users can access those Dashboards by logging on Tableau Server.
You can publish dashboards with Tableau Desktop and share them throughout the organization with web-based Tableau server. It leverages fast databases through live connections.
6. What is Tableau Online?
Tableau Online is your analytics platform fully hosted in the cloud. Publish dashboards and share your discoveries with anyone. Invite colleagues or customers to explore hidden opportunities with interactive visualizations and accurate data. All easily accessible from a browser or on the go with our mobile apps.
7. What is Tableau reader?
Tableau Reader is a free desktop application that you can use to open, view and interact with visualizations that have already been created in Tableau Desktop.
Here’s how it works:
- A colleague or co-worker creates a visualization using Tableau Desktop
- When they are done, they save it as a Tableau Packaged Workbook, or “.twbx” file
- They share that file with you. You can open it with Tableau Reader to see what they’ve made.
Tableau Reader is completely free and available to anyone. You can install it on either Windows or MacOS machines in less than a minute.
8. What is Tableau Public?
It’s a free product from Tableau. Visualization Enthusiast can play with data using Tableau Public. It has its own limitation. You can only use limited data(no. of rows), can only connect excel or text file (no database connectivity) & anything you save in Tableau Public will be saved on Tableau Public Sever which anyone can download (no confidentiality).
9. What is a data source page?
A page where you can set up your data source. The Data Source page generally consists of four main areas: left pane, join area, preview area, and metadata area.
10. What are Filters? How many types of filters are there in Tableau?
Filters are nothing but it is restricted to unnecessary, it is showing exact data.
There are 3 types filters available in tableau,
1. Quick filter
2. Context filter
3. Datasource filter
11. Explain Quick Filter?
Quick Filter creates an interactive selection panel on the right top corner of the data view. We can implement Quick Filter on Dimensions or Measures. The interactive selection panel provides the options based on the source data.
12. Explain Context Filter?
Context Filter helps to pass the criteria of the filter from one level to other related level.
Example: Top 10 Customers in country by their purchases, here the context is ‘Top 10’. We can pass this context to know ‘Top 10’ Customers by Purchases in a State within the same country.
A context filter sets up a filtering hierarchy where the context filter is applied to the whole dataset and subsequent filters are applied only on the returned records. Some common uses for this filtering are fields such as country, state, city; product category, product name, etc. This often helps improve performance and limit the data set for security purposes. To use this feature, right-click on the field within the Filters shelf and select Add to Context.
13. Explain Data source Filter?
Data Source Filters in Tableau are useful to create Filters at data Source Level