Discuss EC-Council 112-51 Exam Topic 2 Question 17

Which of the following environmental controls options saves the hardware from humidity and heat,

increases hardware performance, and maintains consistent room temperature?

AHot and cold aisles

BLighting systern

CTemperature indicator

DEMI shielding

Suggested Answer: A

Hot and cold aisles are a type of environmental control that saves the hardware from humidity and heat, increases hardware performance, and maintains consistent room temperature. Hot and cold aisles are a layout design for data centers, where the server racks are arranged in alternating rows of cold air intake and hot air exhaust. The cold aisle faces the air conditioner output ducts and provides cool air to the front of the servers. The hot aisle faces the air conditioner return ducts and collects the hot air from the back of the servers. This way, the hot and cold air streams are separated and do not mix, resulting in better cooling efficiency, lower energy consumption, and longer hardware lifespan. Reference:

Hot and cold aisles - Week 4: Network Security Controls: Physical Controls

Hot and Cold Aisles: The Basics of Data Center Cooling

Hot Aisle vs. Cold Aisle Containment: Which One is Best for Your Data Center?

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35 comments · newest first

Kris 11 months ago

Surprised that people don't know hot and cold aisles are key for temp control!

Johnna 11 months ago

Really? I thought EMI shielding was more important for performance.

Tawanna 11 months ago

Definitely hot and cold aisles, they really help with airflow.

Tomas 12 months ago

I think lighting systems have nothing to do with hardware performance.

Gail 12 months ago

Hot and cold aisles are the best for cooling!

Mike 1 year ago

Lighting systems don’t seem relevant to hardware performance, so I’m leaning towards hot and cold aisles too.

Dolores 1 year ago

I feel like I’ve seen practice questions where EMI shielding was mentioned, but I don’t think it relates to humidity and heat control.

Selene 1 year ago

I'm not entirely sure, but I remember something about temperature indicators being important for monitoring.

Ahmed 1 year ago

I think the hot and cold aisles might be the right answer since they help with airflow and cooling.

Trevor 1 year ago

Based on the question, I think hot and cold aisles is the best answer. That approach manages the temperature and humidity to create an optimal environment for the hardware.

Kimberlie 1 year ago

I'm a bit unsure about this one. The lighting system and temperature indicator don't seem directly related to the requirements. EMI shielding is important, but I don't think that's the primary environmental control being asked about.

Stefany 1 year ago

Hot and cold aisles seem like the most logical choice here. That setup helps regulate temperature and humidity to protect the hardware while also improving performance.

Ashlyn 1 year ago

Hmm, this seems like a tricky one. I'll need to carefully consider the options and think about which environmental control would address all the key factors mentioned.

Beatriz 1 year ago

Okay, I think I've got this. The key is that the question is asking about the VLANs created when the first FortiSwitch device is discovered. Based on that, I'm going to go with option B - access, quarantine, rspan, voice, video, and onboarding.

Frederica 1 year ago

Hmm, I'm a bit confused. I thought the ANALYZE command didn't lock the table, but I'm not sure about the other statements. I'll have to think this through carefully.

Erasmo 2 years ago

EMI shielding? More like 'Extremely Mystifying and Impractical' if you ask me.

Georgiana 2 years ago

Lighting system? Nah, that's just for setting the mood, not keeping the hardware happy.

Sharen 2 years ago

↳ replying to Georgiana

D) EMI shielding

Denise 2 years ago

↳ replying to Georgiana

C) Temperature indicator

Linsey 2 years ago

↳ replying to Georgiana

B) Lighting system? Nah, that's just for setting the mood, not keeping the hardware happy.

Cherry 2 years ago

↳ replying to Georgiana

A) Hot and cold aisles

Buffy 2 years ago

Temperature indicator? Really? That's about as useful as a chocolate teapot in a heatwave.

Margarett 2 years ago

↳ replying to Buffy

Temperature indicator is not very effective.

Shanda 2 years ago

↳ replying to Buffy

D) EMI shielding

Julian 2 years ago

↳ replying to Buffy

B) Lighting system

Aileen 2 years ago

↳ replying to Buffy

A) Hot and cold aisles

Roslyn 2 years ago

I believe the correct answer is A) Hot and cold aisles because it helps increase hardware performance as well.

Josphine 2 years ago

Hot and cold aisles, that's the way to go! Keeps the hardware cool and toasty, just like my grandma's oven.

Gilma 2 years ago

↳ replying to Josphine

D) EMI shielding

Venita 2 years ago

↳ replying to Josphine

C) Temperature indicator

Leonie 2 years ago

↳ replying to Josphine

B) Lighting system

Freeman 2 years ago

↳ replying to Josphine

A) Hot and cold aisles

Emelda 2 years ago

I'm not sure, but I think D) EMI shielding could also help protect hardware from heat.

Thora 2 years ago

I agree with An, hot and cold aisles help maintain consistent room temperature.

An 2 years ago

I think the answer is A) Hot and cold aisles.

EC-Council 112-51 Exam - Topic 2 Question 17 Discussion