Explanation:
When you connect to a data source, Tableau automatically separates date fields into hierarchies so you can easily break down the viz. You can also create your own custom hierarchies. For example, if you have a set of fields named Region, State, and County, you can create a hierarchy from these fields so that you can quickly drill down between levels in the viz.



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

Explanation:
View Data allows you to inspect your data in a spreadsheet-like layout. You can view data either for the data source as a whole, or to see the underlying data for an individual mark or a group of marks. In a worksheet, the rows that you see in the View Data window are always scoped to the current selection or the current view.
The View Data window displays as much of the data as possible by default, up to 10,000 rows. Field names are shown as column headers and can be dragged and dropped to change their display order. Click a column header to sort the values in that column.
From the official website:



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

Explanation:
Data fields are made from the columns in your data source. Each field is automatically assigned a data type (such as integer, string, date), and a role: Discrete Dimension or Continuous Measure (more common), or Continuous Dimension or Discrete Measure (less common).
Dimensions 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.
Measures contain numeric, quantitative values that you can measure. Measures can be aggregated. When you drag a measure into the view, Tableau applies an aggregation to that measure (by default).
Reference: https://help.tableau.com/current/pro/desktop/en-us/datafields_typesandroles.htm

Explanation:
It is possible to open a Tableau support case by visiting the following link :
https://www.tableau.com/support/case

Explanation:
According to the official Tableau documentation, there are 5 types of trend lines which we can work with in Tableau:
1) Linear Trend Line
2) Logarithmic Trend Line
3) Exponential Trend Line
4) Polynomial Trend Line
5) Power Model
Hence, the correct answer is BINOMIAL trend line which is not present in Tableau.
See the following image:



For more information, refer to: https://help.tableau.com/current/pro/desktop/en-us/trendlines_add.htm