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 value-added 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.
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