Frankie is an IoT Engineer working on Azure IoT projects for Connected Factory. He’s using Azure Time-series insights Gen2 for near real-time data streaming on the Azure IoT platform. He is required to enable batch execution operations in order to perform the batch CRUD operations on time-series model entities. 
Which of the following three APIs can he select in Azure time series insights Gen2 Query APIs?

Answer options:

A.Get Events API
B.Types API
C.Hierarchies API
D.Get Environments API
E.Instances API

Correct Answers: B, C and E 

Azure Time-series Insights Gen2 enables data querying on events and metadata stored in the environment via public APIs. 
The time series Model-Query (TSM-Q) APIs enable CRUD operations on metadata stored in the time series model of the environment. 
Answer A. Get Events API enables query and retrieval of raw events and the associated event timestamps as they’ve recorded in the Azure time series insights Gen2 from the source provider. Hence, it’s incorrect. 
Answer
B. Types API enables CRUD on time series types and their associated variables. Hence, it`s the correct option. 
Answer
C. Hierarchies API enables CRUD on time series hierarchies and their associated field paths. It`s an incorrect option. 
Answer
D. Get Environments API returns the list of environments that the caller is authorized to access. It`s an incorrect option. 
Answer
E. Instances API enables CRUD on time series instances and their associated instance fields. Hence, it`s the correct option. 

https://docs.microsoft.com/en-us/azure/time-series-insights/concepts-query-overview