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Exin CDCP Exam - Topic 8 Question 30 Discussion

Posted by Crista on Jan 09, 2025 at 03:03 PM

Which design consideration should be implemented with an Inergen-based fire suppression system?

Suggested Answer: B

Single-mode cabling and multi-mode cabling are two types of fiber optic cables that differ in their core diameter, wavelength, light source, bandwidth, distance, and cost. Single-mode cabling has a smaller core diameter and uses a laser as a light source, which enables it to transmit data over longer distances and higher bandwidths. However, single-mode cabling is also more expensive than multi-mode cabling, because it requires more precise alignment and splicing, and more costly light sources and connectors. Multi-mode cabling has a larger core diameter and uses LEDs or VCSELs as a light source, which makes it cheaper and easier to install and maintain. However, multi-mode cabling also has a shorter distance and lower bandwidth than single-mode cabling, because it suffers from more modal dispersion and attenuation.


1: Data Center Cabling: Single Mode vs Multimode Fibers2, page 1, section 1 3: Single Mode vs Multimode Fiber Cable Guide4, page 1, section 1 5: Single-Mode vs. Multi-Mode Fiber Cables: Explained6, page 1, section 1 7: 2 Types of Fiber Optic Cable: Single Mode vs. Multimode Fiber8, page 1, section 1

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34 comments · newest first
JE
Jennie 11 months ago
Yeah, I think A is a must-have for any system like this.
CA
Carman 11 months ago
Wait, are we really saying D is necessary? That seems excessive!
DA
Darrel 11 months ago
C is a myth, Inergen can be used for electrical fires too!
AL
Aleisha 11 months ago
I disagree, B makes more sense for quick response.
AN
Antione 12 months ago
A is definitely important to prevent accidental discharges.
TW
Twana 12 months ago
Pressure relief valves sound familiar, but I can’t recall if they’re mandatory for Inergen systems or just a good practice in general.
MA
Maile 12 months ago
I’m a bit confused about the electrical fire aspect. I thought Inergen could be used for electrical fires, but maybe I’m mixing it up with another system?
CR
Crista 1 year ago
I think I practiced a question similar to this where we discussed the placement of gas containers. It seems important for effectiveness.
MA
Marya 1 year ago
I remember something about needing to protect the nozzles, but I’m not sure if it was specifically about Inergen.
KE
Kenia 1 year ago
Pressure relief valves, that's the key! The room needs to be able to vent the gas properly. I'm going with option D.
ER
Eric 1 year ago
I'm a bit confused on this one. I know Inergen is a gas-based system, but I'm not sure about the specific design requirements. Maybe I should review my notes on this topic.
NA
Nancey 1 year ago
Okay, let's see. I'm pretty sure the answer has to do with protecting the nozzles from accidental discharge. I'll go with option A.
VA
Vanda 1 year ago
Hmm, this seems like a tricky one. I'll need to think carefully about the design considerations for an Inergen-based fire suppression system.
RO
Ronnie 1 year ago
I bet the designer of this system had a real 'gas-tly' time coming up with these options. Pun intended!
BE
Beatriz 1 year ago
↳ replying to Ronnie
D) Pressure relief valves are required in the room that needs protection.
FR
Francoise 1 year ago
↳ replying to Ronnie
B) Install the gas containers (tanks) close to the data centre.
MI
Miesha 1 year ago
↳ replying to Ronnie
A) Install protective covers around the nozzles to avoid accidental gas dumps.
MA
Mary 1 year ago
C? Really? Inergen is primarily used for electrical fires, not for other types. That option doesn't make sense.
JU
Juliana 1 year ago
↳ replying to Mary
C? Really? Inergen is primarily used for electrical fires, not for other types. That option doesn't make sense.
EL
Ellen 1 year ago
↳ replying to Mary
D) Pressure relief valves are required in the room that needs protection.
VE
Verona 1 year ago
↳ replying to Mary
B) Install the gas containers (tanks) close to the data centre.
FR
Franchesca 1 year ago
↳ replying to Mary
A) Install protective covers around the nozzles to avoid accidental gas dumps.
TY
Tyra 2 years ago
B seems like a bad idea. The gas containers should be installed away from the data center to avoid potential damage in case of a fire.
DE
Delila 1 year ago
↳ replying to Tyra
D) Pressure relief valves are required in the room that needs protection.
AI
Aide 1 year ago
↳ replying to Tyra
A) Install protective covers around the nozzles to avoid accidental gas dumps.
SO
Sophia 2 years ago
I'm leaning towards A. Protective covers can prevent accidental gas discharge and keep the system safe.
ST
Stanford 2 years ago
But what about the risk of accidental gas dumps with option A?
OL
Oliva 2 years ago
I disagree, I believe option D is more important.
AN
Angella 2 years ago
D looks like the right answer to me. Pressure relief valves are essential for Inergen-based systems to prevent over-pressurization in the protected space.
CH
Chi 1 year ago
↳ replying to Angella
D) Pressure relief valves are required in the room that needs protection.
JA
Janine 1 year ago
↳ replying to Angella
C) To use Inergen only for fires which are not related to electrical power.
AN
Angelyn 1 year ago
↳ replying to Angella
B) Install the gas containers (tanks) close to the data centre.
GE
Georgiann 1 year ago
↳ replying to Angella
A) Install protective covers around the nozzles to avoid accidental gas dumps.
ST
Stanford 2 years ago
I think option A is the best choice.
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