单项选择题
An administrator needs the fastest read/write capabilities with the most redundancy， cost is not afactor. The current data requirement is 750GB but will double in the next year. Which of the following BEST meets these requirements？ （）
A. Use RAID 1 with ten 300GB hard drives.
B. Use RAID 6 with seven 300GB hard drives.
C. Use RAID 5 with six 300GB hard drives.
D. Use RAID 10 with ten 300GB hard drives.
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单项选择题
A datacenter has exceeded the load on the central uninterruptible power supply (UPS) for the room and is causing power load problems. Additional power is available, but not using the central UPS. Which of the following is the BEST temporary solution for adding new servers until an upgrade of the central UPS can occur?（）
A. Continue plugging into the central UPS, but put the UPS on bypass to avoid load problems.
B. Plug the servers directly into the power that is not on the UPS.
C. Add stand alone UPSs for new servers not wired off the central UPS.
D. Continue plugging into the central UPS because the actual load supported is actually higher than stated -
单项选择题
WhichofthefollowingserversresolvescomputernamestoIPaddresses？（）
A. Directory services
B. DNS
C. NTP
D. DHCP -
单项选择题
Whenaddinganotherservertoanexistingrackmountsystem，whichofthefollowingshouldthe administratorconsiderFIRST？（）
A. Load on UPS
B. Rack temperature
C. Room temperature
D. Ease of access
