On which server should you install the Azure ATP sensor?

On which server should you install the Azure ATP sensor?
A . Server 1
B. Server 2
C. Server 3
D. Server 4
E. Server 5

Answer: A

Explanation:

References: https://docs.microsoft.com/en-us/azure-advanced-threat-protection/atp-capacity-planning

However, if the case study had required that the DCs can’t have any s/w installed, then the answer would have been a standalone sensor on Server2. In this scenario, the given answer is correct. BTW, ATP now known as Defender for Identity.