You manage a cloud service named fabrikamReports that is deployed in an Azure data center.
You deploy a virtual machine (VM) named fabrikamSQL into a virtual network named fabrikamVNet.
FabrikamReports must communicate with fabrikamSQL.
You need to add fabrikam Reports to fabrikamVNet.
Which file should you modify?

A.
the network configuration file for fabrikamVNet

B.
the service definition file (.csdef) for fabrikamReports

C.
the service definition file (.csdef) for fabrikamSQL

D.
the service configuration file (.cscfg) for fabrikamReports

E.
the service configuration file (.cscfg) fabrikamSQL

Explanation:
The service configuration file specifies the number of role instances to deploy for each role in the service, the
values of any configuration settings, and the thumbprints for any certificates associated with a role. If the
service is part of a Virtual Network, configuration information for the network must be provided in the service
configuration file, as well as in the virtual networking configuration file. The default extension for the service
configuration file is .cscfg.

https://msdn.microsoft.com/en-us/library/azure/ee758710.aspx