单项选择题
A. Inadequate RAM
B. Slow processor
C. PCI bus
D. Excessive network traffic
单项选择题 Which of the following technologies can provide geographically based load balancing with high availability between two web servers with static content?（）
单项选择题 Whichofthefollowingarchivingmethodsonlybacksupdatathathaschangedsincetheprevious backup？（）
单项选择题 Aserverisexperiencinganundeterminedproblem.Whichofthefollowingstepsshouldthetechnician takeinordertoidentifywhetheritisasoftwareorhardwareproblem？（）