You work in ATR company as Azure Data Engineer. You have been assigned a task to create and manage the hierarchies in Azure Analysis Services. Here is the list of some tasks: Change the name of a hierarchy
Change the name of a child level
Change the order of a child level in a hierarchy
Add a child level to the given hierarchy
Remove a child level from the given hierarchy
Choose the tasks that you can perform while editing the hierarchies.

Answer options:

A.Only I, II, and III
B.Only I, IV, and V
C.Only II and III
D.Only IV and V
E.All the above

Correct Answer: E 
Hierarchies can be created, edited, or even deleted in Azure Analysis Services. While editing the hierarchies, Azure Analysis Services allows renaming a hierarchy, changing the order for the child levels, renaming a child level, removing/deleting a child level from a hierarchy, adding extra columns as child levels, displaying the source name of a child level (the column name), and hiding a child level if it has the same name as the hierarchy parent level.
Option A is incorrect. Not only I, II, and III, but all the given tasks can be performed while editing the hierarchies.
Option B is incorrect. Not only I, IV, and V, but all the given tasks can be performed while editing the hierarchies.
Option C is incorrect. Not only II and III, but all of the given tasks can also be performed while editing the hierarchies.
Option D is incorrect. Not only IV and V, but all the given tasks can also be performed while editing the hierarchies.
Option E is correct. All of the given tasks can be performed while editing the hierarchies.
Reference: 
To know more about creating and managing hierarchies, please visit the below-given link: 

https://docs.microsoft.com/en-us/analysis-services/tabular-models/create-and-manage-hierarchies-ssas-tabular?view=asallproducts-allversions