Your company has 1,000 client computers. Each client computer has 1 GB of RAM.
You are planning to deploy Windows 7 Enterprise.
You need to design a zero-touch deployment strategyto increase the number of client computers that can be
imaged at one time.
What should you do?

A.
Increase the amount of RAM on the client computers.

B.
Change from unicast to multicast deployment of images.

C.
Change from multicast to unicast deployment of images.

D.
Decrease the trivial file transfer protocol (TFTP) block size on the TFTP server.

Explanation:
Performing Multicast Deployments
In order to deploy an image using multicasting instead of unicasting, you must first create a multicast
transmission. Multicast transmissions make the image available for multicasting, which enables you to deploy
an image to a large number of client computers without overburdening the network. When you deploy an image
using multicasting, the image is sent over the network only once, which can drastically reduce the amount of
network bandwidth that is used.
http://technet.microsoft.com/en-us/library/dd637994(v=ws.10).aspx