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Exam : APC PB0-200
Title : APC NCPI Design

1. What is a common application for 2-post racks?
A. telecom
B. server room
C. remote office
D. IT data center
Answer: A

2. If a company requests that its UPS output power be distributed to the racks through an isolation transformer, what are they trying to do?
A. decrease the cable size to the load
B. increase the efficiency of the system
C. increase availability throughout the data center
D. prevent electrical noise from locking up the servers
Answer: D

3. A site requires redundant power feeds to single-corded servers. What is a possible redundant configuration?
A. two single-module UPSs feeding one rack-mount Automatic Transfer Switch and one outlet strip per rack
B. two single-module UPSs each feeding dual-panel distribution boards, which in turn feed two outlet strips per rack
C. two single-module UPSs each feeding two outlet strips per rack; plugging half the servers in one strip and the other half in another strip
D. two single-module UPSs each fed from separately derived utility sources; sources that come from one of two independent utility substations
Answer: A

4. What are two reasons why a fully rated UPS (output kW = output kVA) is more compatible with today’s IT loads than an 80%-rated UPS (output kW = output kVA at a 0.8 power factor)? (Choose two.)
A. 80%-rated UPSs are more efficient.
B. Today’s IT loads are power-factor corrected.
C. Fully-rated UPSs have superior output voltage control.
D. Fully-rated UPSs make it less likely to undersize the UPS.
E. Today’s IT loads lock up when powered by an 80%-rated UPS.
Answer: BD

5. How do you achieve full system redundancy in a precision air conditioning system?
A. install multiple air conditioning systems in an N+1 configuration
B. install a properly-sized DX air cooled unit with chilled water back-up
C. install a properly-sized air conditioning unit with redundant compressors
D. install Building System cooling (comfort cooling) with an air conditioning unit in standby
Answer: A