Eccouncil 112-51 Exam - Topic 2 Question 17 Discussion

Actual exam question for Eccouncil's 112-51 exam

Question #: 17
Topic #: 2

[All 112-51 Questions]

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

Show Suggested Answer

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?

by Stefanie at Aug 23, 2024, 05:21 PM

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Kris

3 months ago

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

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Johnna

3 months ago

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

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Tawanna

3 months ago

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

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Tomas

4 months ago

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

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Gail

4 months ago

Hot and cold aisles are the best for cooling!

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Mike

4 months ago

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

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Dolores

4 months 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.

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Selene

4 months ago

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

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Ahmed

5 months ago

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

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Trevor

5 months 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.

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Kimberlie

5 months 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.

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Stefany

5 months 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.

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Ashlyn

5 months 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.

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Beatriz

5 months 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.

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Frederica

5 months 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.

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