[Cisspstudy] Shon Harris Physical Security Questions pt2

[Holland, Brandon]

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)
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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