多项选择题
A.An increased need for specialized IT silos
B.Protecting the business from information outages
C.IT systems grow fast
D.Optimizing the efficiency with which IT operates
多项选择题 You are the network consultant from passguide.com. You should tell your clients Two technologies help them save much time from complex computing. （）
单项选择题 Which Cisco product family can simultaneously implement firewall, VPN, content security, network access control, virtualization, anD content filtering?（）
单项选择题 Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）