Exin CDCS Quiz 1 Topic 2 Questions 1-5

Question: 1

What is the advantage or disadvantage of using MPO (Multi-fiber Push On)/pre-terminated fiber?

AThere is no advantage, as it cannot be used with OM4 optical fiber cables.

BThere is no advantage, as it creates additional heat load in the data center.

CIt speeds up installation and provides an easy upgrade to transmission speeds up to 40 Gbit/s -100 Gbit/s.

DIt is a very flexible system as it can be used for both copper cables and optical fiber cables.

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Question: 2

What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?

AIt can only be used in computer rooms which have sufficient air changes per hour.

BThe gas containers need to be close to the hazard area.

CIt can only be used in non-continuous occupied areas.

DIt can only be used in computer rooms where you have sufficient positive pressure.

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Question: 3

An MCB needs to be installed in the PDU of an air-conditioner unit.

Which breaking curve should you select?

AD-Curve

BC-Curve

CB-Curve

DA-Curve

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Question: 4

What is the main reason to install Earth Leakage protection?

AProtection of ICT equipment against high-frequency noise currents

BProtection of human lives

CImprovement of the data center grounding/earthing system

DProtection against lightning strikes

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Question: 5

A computer room needs to be fitted out with a gas-based fire suppression system. The computer room will be a high-density data center with about 30% of the racks being closed circuit cooling blade-center racks.

Should the supplier of the fire suppression system be informed on the design of the racks?

ANo, cooling and design of racks have no influence on the fire suppression system design.

BOnly when the rack height obstructs a potential fire suppression release point.

CYes, the design of the racks has an influence on the fire suppression system design.

DOnly when the racks might block access to the fire panel.

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Exin CDCS Quiz:1 Topic:2 Questions:1-5