单项选择题
A technician wants to decrease the overall attack surface of the servers in a data center through decreasing the number of open network ports on each server. Which of the following could the technician implement to increase security？（）
A.Host based intrusion detection software B.Software firewall C.NTFS D.ACL
单项选择题 WhichofthefollowingisabenefitofRAID1？（）
单项选择题 RAID5canbeBESTdescribedaswhichofthefollowing？（）
单项选择题 Atechnicianisinstallingnewmemoryinaserver.ThetechnicianwouldconsulttheHCLtoensure whichofthefollowing？（）
