单项选择题
Which of the following is the MOST important consideration when looking at distance requirements when planning a hot site？（）
A.Avoiding more expensive bandwidth costs for data lines between regions
B.Avoiding a regional disaster that affects both the main site and the hot site
C.Avoiding a second location that has high latency between sites
D.Avoiding a location that is too expensive
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A. Incremental and snapshot
B. Full and differential
C. Full and incremental
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A SAN attached production file server is required to be backed up nightly according to company policy. Recently the data to be backed up has increased to approximately 4TB. Currently, the server has a single attached LTO2 tape drive. Which of the following should the server administrator do to provide enough backup capacity for the nightly job?（）
A. Replace the backup software with a more efficient application.
B. Reduce the amount of data to be backed up.
C. Replace the LTO2 tape drive with an LTO3 tape drive.
D. Replace the single tape drive with a tape library
