Which of the following protocols is used by Azure Virtual Desktop to provide remote display and input capabilities over network connections?

Answer options:

A.Remote Desktop Protocol (RDP)
B.Point-To-Point Protocol (PPP)
C.Point-To-Point Tunneling Protocol (PPTP)
D.Remote Access
E.Services (RAS)

Correct Answer: A 
Azure Virtual Desktop uses RDP (Remote Desktop Protocol) to provide remote display and input capabilities over network connections. Initially, RDP was released with Windows NT 4.0 Terminal Server Edition, and since then it is continuously evolving with each Microsoft Windows and Windows Server release.
Option A is correct. Azure Virtual Desktop uses RDP (Remote Desktop Protocol) to provide remote display and input capabilities over network connections.
Option B is incorrect. AVD uses RDP, not PPP.
Option C is incorrect. PPTP is not the right protocol to be used by Azure Virtual Desktop.
Option D is incorrect. Azure Virtual Desktop uses RDP, not RAS to provide remote display and input capabilities over network connections.
Option E is incorrect. Services (RAS) is not used by Azure Virtual Desktop to provide remote display and input capabilities over network connections.
Reference: 
To know more about Azure Virtual Desktop network connectivity, please visit the below-given link: 

https://docs.microsoft.com/en-us/azure/virtual-desktop/network-connectivity