Final answer:
In a new installation of vRealize Operations Manager as a virtual appliance, one is prompted for all of the following: IP address, subnet mask, and gateway. These details are vital for establishing network communication for the appliance.
Step-by-step explanation:
When deploying vRealize Operations Manager as a virtual appliance in a new installation, you are prompted for all of the above: the IP address, subnet mask, and gateway. This is because it is essential to configure network settings correctly for the appliance to communicate within the network infrastructure.