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Exam CISSP Topic 1 Question 1351 Discussion

Actual exam question for ISC's CISSP exam
Question #: 1351
Topic #: 1
Which type of fire alarm system sensor is intended to detect fire at its earliest stage?

Suggested Answer: A Vote an answer

Ionization is a type of fire alarm system sensor that is intended to detect fire at its earliest stage. Ionization sensors use a small amount of radioactive material to ionize the air inside a chamber. When smoke enters the chamber, it disrupts the ionization process and reduces the current flow, which triggers the alarm. Ionization sensors are more sensitive to small particles of smoke, such as those produced by flaming fires, than other types of sensors, such as photoelectric or thermal sensors. References: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 9: Physical Security Requirements, page 463; [Official (ISC)2 CISSP CBK Reference, Fifth Edition, Chapter 9: Physical Security Requirements, page 609]

by rami_mma at Aug 28, 2024, 07:51 PM

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rami_mma
2024-08-28 19:51:48
Infrared
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