单项选择题
A. JBOD
B. SAN
C. DAS
D. NAS
单项选择题 WhichofthefollowingMOSTlikelycausesproblemswithSCSIcommunication？（）
单项选择题 Whichofthefollowingisadistinguishingfactorbetweendataarchivinganddatabackups？（）
单项选择题 When troubleshooting hardware issues with a server, which of the following is MOST likely to cause a problem in receiving vendor support?（）