A hosting company provides inexpensive guest virtual machines to low-margin customers.
Customers manage their own guest virtual machines. Some customers want basic guarantees of
logical separation from other customers and it has been indicated that some customers would like
to have configuration control of this separation; whereas others want this provided as a valueadded service by the hosting company. Which of the following BEST meets these requirements?

A.
The hosting company should install a hypervisor-based firewall and allow customers to manage
this on an as-needed basis.

B.
The hosting company should manage the hypervisor-based firewall; while allowing customers
to configure their own host-based firewall.

C.
Customers should purchase physical firewalls to protect their guest hosts and have the hosting
company manage these if requested.

D.
The hosting company should install a host-based firewall on customer guest hosts and offer to
administer host firewalls for customers if requested.