[Cisspstudy] FW: Shon Harris Physical Security Questions pt2

[Holland, Brandon]

OK, a little clarification on this one:

I was trying to recall a question from the Exam Cram CISSP Practice
Questions 2nd Ed. Book I had looked at one a month or two ago...

...and the fourth answer I couldn't remember was CO2 sensing, and that
would be the incorrect choice.

I think I have just realized that CO2 is carbon dioxide, and CO is
carbon monoxide.  Carbon Monoxide detectors detect CO, not CO2.

Thanks,
Brandon

-----Original Message-----
From: cisspstudy-bounces at cccure.org
[mailto:cisspstudy-bounces at cccure.org] On Behalf Of Andrea Gatta
Sent: Tuesday, September 29, 2009 5:42 AM
To: The CISSP Study Mailing list
Subject: Re: [Cisspstudy] Shon Harris Physical Security Questions pt2

Any chance to have the exact question ?

Andrea


On Mon, Sep 28, 2009 at 11:03 PM, Holland, Brandon
<hollandb at frmaint.com> wrote:


	Have a question on types of fire detectors:

	

	Shon Harris states that there are two types: Heat activated and
Smoke activated.

	I was reading a quiz book Mike's CISSP Passport I believe it's
called (have to get it at the house to find the question) but it
specifically asked what of the types listed was not a valid type of
detector...

	I can't remember the question specifically enough to give the
answers, but I believe it was smoke, heat and flame, and the forth I'm
not sure on but believe was "optical."  Having over-analyzed this to
insanity, I'm asking for feedback on this.  

	According to Wikipedia
(http://en.wikipedia.org/wiki/Fire_alarm_system
<http://en.wikipedia.org/wiki/Fire_alarm_system> )  there are a whole
bunch of different types

	"Automatically activated devices can take many forms intended to
respond to any number of detectable physical changes associated with
fire: convected thermal energy; heat detector
<http://en.wikipedia.org/wiki/Heat_detector> , products of
combustion;smoke detector <http://en.wikipedia.org/wiki/Smoke_detector>
, radiant energy; flame detector
<http://en.wikipedia.org/wiki/Flame_detector> , combustion gasses;
carbon monoxide detector
<http://en.wikipedia.org/wiki/Carbon_monoxide_detector>  and release of
extinguishing agents; water-flow detector. The newest innovations can
use cameras and computer algorithms to analyze the visible effects of
fire and movement in applications inappropriate for or hostile to other
detection methods."

	I guess if I were to answer the question now I'd pick optical
(as NOT being valid), as multiple detectors use an optical sensor but in
different ways, to achieve the goal of detecting the fire by their
specific method.

	Any feedback on this?

	Brandon Holland

	Army Fleet Support

	ITS | Network Services

	Ph:  598-0626

	


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