CDCS 無料問題集「EXIN EPI Certified Data Centre Specialist」

（A）At 1.5 meters/5 feet above the floor in the middle of the hot aisle

（B）At 1.5 meters/5 feet above the floor in the middle of the cold aisle

（C）At the back/rear of the server at 50 mm/2 inch

（D）At the front/intake of the server at 50 mm/2 inch

（A）It extracts oxygen from the air creating a potential risk for humans inside the computer room

（B）It will rapidly increase the humidity level in the data center, which can cause a potential risk for the operation of the equipment

（C）It only uses 10% of the water normally used in a water-based fire suppression, which might not be enough to suppress the fire

（D）It has droplets that are too small (100-120 microns) so it can only be used for small fires

（A）A ToR (Top of Rack) switch has only optical interfaces.

（B）There will be more switches to manage.

（C）You need a separate rack to install all your ToR (Top of Rack) switches.

（D）A single ToR (Top of Rack) switch is more expensive than an EoR (End of Row) switch.

（A）A = 20 log (M / R)
Where A is Attenuation M is the maximum acceptable value R is the real value measured

（B）A = M / R
Where A is Attenuation M is the maximum acceptable value R is the real value measured

（C）You do not have to calculate the attenuation factor for shielding material as it always has the same attenuation

（D）A = 20 log (R / M)
Where A is Attenuation R is the real value measured M is the maximum acceptable value

（A）Yes, as long as you use the same units of measure, i.e., kg/m³ or lbs/ft³.

（B）Yes, as long as you change the 'S' factor of the formula to reflect the gas type used.

（C）No, there is a significant difference in the formula for the different types of fire suppression gases.

（D）Yes, as long as you take the difference between the net and gross volume into account.

（A）Design

（B）Implement

（C）Operate/optimize

（D）Retire