Page 832 - StudyBook.pdf

816 Appendix • Self Test Appendix

A. Seal the air vent to prevent people from crawling into the room through the vent.
B. Seal the area above the false ceiling to prevent people from crawling through the plenum.
C. Seal the area below the raised floor to prevent people from crawling through this area.
D. Replace the locking mechanism on the door.
Answer B. Seal the area above the false ceiling to prevent people from crawling through the
plenum. Because the concrete walls only extend to the level of the false ceiling, it is possible for
intruders to crawl into the server room between the false ceiling and the real ceiling.
Answer A is incorrect, because the air vent is already sealed with a bolted grate.Answer C is
incorrect because the concrete walls extend below the raised floor.Answer D is incorrect
because the door already has a lock that is sufficient to secure the room.

4. A company is using Apple computers for employees to work on, with UNIX servers to provide
services and store network data.The servers are located in a secure server room, utilize password
protection through a screensaver, and use disk encryption.Workstations are located throughout
the facilities, with front desk computers in a reception area that is accessible to the public.The
workstations in the reception area have cables with locking mechanisms to prevent people from
carrying them away, and don’t have access to the Internet as management feels the receptionist
doesn’t require it.All workstations are connected to the network, and automatically receive soft-
ware updates from network servers.Which of the following needs to be done to improve secu-
rity without affecting the productivity of the receptionist?
A. Replace all of the Apple computers with PCs running Windows
B. Enable password protection on servers
C. Enable password protection on workstation screensavers
D. Provide front desk computers with Internet access, so they can update anti-virus software
with the latest signature files
Answer C. Computers can also be configured to prevent unauthorized access by using screen-
savers with password protection, so that anyone without the password is unable to access the
system.To deactivate the password, the user needs to enter a valid username and password.
Answer A is incorrect, because there is no reason why Windows workstations would provide
any improvement to the insecurity of unauthorized people accessing the front desk computers.
Answer B is incorrect, because servers already use password-protected screensavers.Answer D is
incorrect, because the front desk computers already receive software updates from network
computers.

5. A problem with the air conditioning is causing fluctuations in temperature in the server room.
The temperature is rising to 90 degrees when the air conditioner stops working for a time, and
then drops to 60 degrees when you get the air conditioner working again.The problem keeps
occurring so that the raising and lowering of temperature keeps occurring over the next two
days.What problems may result from these fluctuations?

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