How many license files need to be installed on the license server?

You work as a administrator at Domain.com. Domain.com decides to use a license server for a newly installed Virtual Infrastructure. The infrastructure consists of one VirtualCenter server and two ESX Server hosts, each with two dual core CPUs. DRS, VMware HA and VMotion will be used on all hosts. How many license files need to be installed on the license server?

A.
0

B.
1

C.
2

D.
3

E.
4

F.
5

G.
6

H.
7

I.
13

J.
25

Explanation:
This is a Trick question. Although 17 separate licenses need to be purchased from VMware (one for the VC server, and four for each of the other four categories), the key phrase is: "How many license files need to be installed on the license server". A license server only ever has one license file.
Quick Start Guide: In license server-based licensing mode, a single license file is stored centrally on a license server, which makes these licenses available to one or more hosts.
Installation & Upgrade Guide: Server-based license files configured through the VI Client areplaced at the following location on the machine running the VMwarelicense server:
C:Program FilesVMwareVMware License Servervmware.lic.
To add new licenses, edit the license file and restart the VMware license server.
page 15 Quick Start Guide & page 51 of Installation and Upgrade Guide