Exin Exam CDCP Topic 5 Question 22 Discussion

Actual exam question for Exin's CDCP exam

Question #: 22
Topic #: 5

[All CDCP Questions]

What should be a consideration when having casters (rollers/wheels) or feet under the rack?

AThe casters and feet should be larger to avoid a too heavy point load on the floor tile.

BSkirts at the bottom of the rack to avoid air flow between the hot and cold aisles.

CCasters and feet should be of a soft material, for example rubber, to avoid damage to the raised floor tile.

DCasters and feet should not be locked to ensure the racks are still able to be moved to another position.

Show Suggested Answer

Suggested Answer: A

The casters and feet under the rack are used to support the weight of the rack and its equipment, and to allow the rack to be moved if needed. However, the casters and feet should also be designed to avoid putting too much pressure on the floor tile, especially if the data centre uses a raised floor system. A too heavy point load on the floor tile can cause the tile to crack, deform, or collapse, which can damage the rack, the equipment, and the underlying infrastructure. To prevent this, the casters and feet should be larger, so that they can distribute the weight over a larger area and reduce the point load. The casters and feet should also be compatible with the floor type and the load rating of the floor tile.

1: CDCP Preparation Guide, page 22, section 2.4.1.1 2: Raised Floor Design Considerations for Data Center3, page 1, section 1 4: [SOLVED] server rack on casters or feet5, page 1, section 1

by Shawnda at Sep 16, 2024, 02:43 PM

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Gwen

2 months ago

Ooh, tricky one. I'm going with C - can't be having those hard casters scratching up the expensive tiles!

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Vicente

17 days ago

Sharika: That's a good point, we need to consider both the floor and the mobility of the racks.

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Armando

24 days ago

User 3: I'm not so sure, I think D is important too. We need to be able to move the racks easily.

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Sharika

1 months ago

User 2: Yeah, I agree. Soft material like rubber would be best.

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Cyndy

1 months ago

User 1: I think C is a good choice, we don't want any damage to the floor tiles.

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Leanna

2 months ago

Haha, skirts on the racks? That's a good one! B is definitely not the right answer here.

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Bettina

24 days ago

D) Casters and feet should not be locked to ensure the racks are still able to be moved to another position.

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Carman

25 days ago

C) Casters and feet should be of a soft material, for example rubber, to avoid damage to the raised floor tile.

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Doretha

1 months ago

A) The casters and feet should be larger to avoid a too heavy point load on the floor tile.

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Bulah

2 months ago

A seems like the best option to me. Larger casters will distribute the weight better and prevent tile damage.

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Garry

2 months ago

D is the way to go. Unlocked casters will let you move the racks around easily if you need to rearrange the data center.

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Andra

1 months ago

Paulene: Plus, it's less strain on the floor tiles with the casters being able to move freely.

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Paulene

2 months ago

Definitely, it's important to be able to rearrange the data center when needed.

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Salena

2 months ago

I agree, unlocked casters make it easier to move the racks.

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Owen

3 months ago

But wouldn't option C also be important to protect the raised floor tile?

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Virgilio

3 months ago

I think the correct answer is C. Casters and feet should be made of a soft material like rubber to avoid damaging the raised floor tiles.

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Gladys

2 months ago

D) Casters and feet should not be locked to ensure the racks are still able to be moved to another position.

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Lenna

2 months ago

B) Skirts at the bottom of the rack to avoid air flow between the hot and cold aisles.

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Myong

2 months ago

C) Casters and feet should be of a soft material, for example rubber, to avoid damage to the raised floor tile.

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Ruthann

2 months ago

A) The casters and feet should be larger to avoid a too heavy point load on the floor tile.

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Katina

3 months ago

I agree with Felicitas, having larger casters or feet can distribute the weight better.

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Felicitas

3 months ago

I think option A is important to prevent damage to the floor.

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