Exin CDCP Exam - Topic 6 Question 20 Discussion

Actual exam question for Exin's CDCP exam

Question #: 20
Topic #: 6

[All CDCP Questions]

What factor should be considered when placing fluorescent lighting in the data centre?

AFluorescent lights should not be connected to the back-up generator.

BFluorescent lights should only be installed in equipment supporting areas and not in the Computer/Server room.

CFluorescent lights should not be connected to the mains power supply.

DFluorescent lights should not be connected to the same UPS that supports the ICT equipment.

Show Suggested Answer

Suggested Answer: D

The UPS (uninterruptible power supply) is a device that provides backup power to the ICT equipment in case of a power outage or a power quality issue. The UPS should be dedicated to the ICT equipment only, and not to other loads, such as lighting, cooling, or security systems. This is because connecting fluorescent lights to the same UPS as the ICT equipment can cause several problems, such as:

* Reducing the battery runtime of the UPS, which may not be enough to support the ICT equipment until the backup generator kicks in or the utility power is restored.

* Increasing the harmonic distortion of the UPS output, which can affect the performance and reliability of the ICT equipment and the UPS itself.

* Creating electromagnetic interference (EMI) or radio frequency interference (RFI), which can disrupt the communication and data transmission of the ICT equipment.

* Triggering false alarms or tripping the circuit breakers of the UPS, which can cause downtime or data loss.

Therefore, fluorescent lights should not be connected to the same UPS that supports the ICT equipment. Instead, they should be connected to a separate power source, such as the utility power, the backup generator, or a different UPS.

1: CDCP Preparation Guide, page 17, section 2.3.1 2: Data Center Lighting Design Considerations3, page 1, section 3 4: Data Center Lighting Solutions5, page 1, section 1 6: Going beyond energy savings in data centers with LEDs7, page 1, section 2

by Izetta at Aug 23, 2024, 07:37 PM

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Nadine

3 months ago

I thought fluorescent lights were fine as long as they’re energy-efficient?

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Corrinne

3 months ago

Connecting them to the back-up generator is a bad idea too.

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Larae

3 months ago

Wait, are we really saying no fluorescent lights in the server room?

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Rory

4 months ago

I agree, that could cause issues during a power outage.

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Willard

4 months ago

Fluorescent lights should definitely not be on the same UPS as the servers.

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Lashunda

4 months ago

I vaguely recall something about not connecting fluorescent lights to the mains power supply, but that seems a bit extreme. Is that really necessary?

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Bernardo

4 months ago

I think I saw a practice question about lighting placement, and it mentioned that fluorescent lights should be avoided in server rooms due to heat and flicker issues.

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Joanna

4 months ago

I'm not entirely sure, but I feel like we talked about how backup power should be prioritized for critical systems, so maybe they shouldn't connect to the generator?

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Sabrina

5 months ago

I remember discussing how fluorescent lights can interfere with sensitive equipment, so I think they shouldn't be on the same UPS as the ICT gear.

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Levi

5 months ago

This is a tricky one. There are a lot of factors to consider when placing lighting in a data center. I'll need to think through the potential risks and impacts to make sure I choose the best answer.

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Kiley

5 months ago

Okay, I think I know the answer to this. Fluorescent lights can interfere with sensitive electronic equipment, so they need to be carefully placed and powered separately from the main data center systems. I'll select the option that reflects that.

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Alfred

5 months ago

Hmm, I'm a bit unsure about this one. I know fluorescent lights can have some issues in data centers, but I'm not sure of the specifics. I'll have to review my notes to see if I can figure out the right approach.

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Rodrigo

5 months ago

This seems like a straightforward question about data center lighting. I'll need to think carefully about the potential impacts of fluorescent lighting in that environment.

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Loren

5 months ago

I remember we discussed using SSH keys in Jenkins, but I'm not sure if the scope should be 'System' or 'Agents'.

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Graciela

5 months ago

I'm leaning towards Option B. Creating a supplier/item relationship and checking the line type interface seems like a good approach to fix this issue.

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Whitley

1 year ago

I think all the options are valid, but we need to prioritize the ones that directly impact the data centre's operations.

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Aimee

1 year ago

I believe option B is also important, fluorescent lights should only be in equipment supporting areas.

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Shanda

1 year ago

I agree with Stephaine, fluorescent lights should not be connected to the same UPS as the ICT equipment.

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Stephaine

1 year ago

I think the factor to consider is option D.

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Katina

1 year ago

What if we just used LED lights instead? They're more energy-efficient and generate less heat. Then we wouldn't have to worry about power separation. *chuckles* Just a thought, though I'm sure the exam designers didn't account for that loophole.

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Lenita

2 years ago

Hmm, I was thinking B might be the right answer. Placing the lights in the equipment supporting areas makes sense to avoid any electromagnetic interference. But Carmelina's explanation for D is quite convincing.

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Dolores

1 year ago

Carmelina makes a good point about not connecting the lights to the same UPS as the ICT equipment.

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Truman

1 year ago

I agree, placing the lights in equipment supporting areas is a good idea to prevent interference.

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Lashandra

2 years ago

I agree with Carmelina. Keeping the lights on a separate UPS makes a lot of sense to maintain the integrity of the data center's power infrastructure.

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Carmelina

2 years ago

Option D seems the most logical choice. Fluorescent lights should be on a separate power supply to avoid any potential interference or disruption to the critical ICT equipment.

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Gracia

1 year ago

C) Fluorescent lights should not be connected to the mains power supply.

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Carin

1 year ago

B) Fluorescent lights should only be installed in equipment supporting areas and not in the Computer/Server room.

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Avery

1 year ago

A) Fluorescent lights should not be connected to the back-up generator.

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