A small company has recently placed a newly installed DNS server on the DMZ and wants to
secure it by allowing Internet hosts to query the DNS server. Since the company deploys an
internal DNS server, all DNS queries to that server coming from the company network should be
blocked. An IT administrator has placed the following ACL on the company firewall:
Testing shows that the DNS server in the DMZ is not working. Which of the following should the
administrator do to resolve the problem?

An administrator would like to connect a server to a SAN. Which of the following processes would
BEST allow for availability and access control?

A company data center provides Internet based access to email and web services.
The firewall is separated into four zones:
RED ZONE is an Internet zone
ORANGE ZONE a Web DMZ
YELLOW ZONE an email DMZ
GREEN ZONE is a management interface

There are 15 email servers and 10 web servers. The data center administrator plugs a laptop into
the management interface to make firewall changes. The administrator would like to secure this
environment but has a limited budget. Assuming each addition is an appliance, which of the
following would provide the MOST appropriate placement of security solutions while minimizing
the expenses?