CDCP practice questions, page 2 of 2, with answer review and explanations.
Question 6
What causes most fires in data centres?
Equipment overheating, loose connections, dead shorts
Air conditioner temperature settings, fuel spills, packing material
Lightning strikes, harmonic distortion air conditioner temperature settings
Low relative humidity, lightning strikes air conditioner temperature settings
Question 7
Does shielded twisted pair network cabling provide protection against EMF from power cables?
Yes, but only if the power cable is placed in a tre-foil cable arrangement.
Yes, as the shielding for twisted pair network cabling is specifically design for low frequency EMF protection.
No, the shielding is designed for alien cross-talk between network cables, it provides no or little protection against low frequency EMF.
No, the shielding for twisted pair network cabling is for physical protection against vandalism and accidental cutting of the cable.
Question 8
What is the absolute minimum required space between the slab (building floor) and the raised floor (i.e. raised floor height) when it is used for cold air distribution in the data centre?