A.Layer one
B.Layer two
C.Layer three
D.Layer four
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A.Optical fiber
B.Access point
C.Directional antenna
D.Omni-directional antenna
A.Network security
B.Wireless network
C.Content networking
D.Virtual Private Network (VPN)
A.Protecting the business from information outages
B.Optimizing the efficiency with which IT operates
C.An increased need for specialized IT silos
D.IT systems grow fast
A.Synchronizes password exchanges for call setup
B.Eliminates the need for physical cabling in a TCP/IP network
C.Enables two-way voice transmission over a packet-switched TCP/IP network
D.Creates an encrypted tunnel for voice through a Transmission Control Protocol (TCP)/IP network
A.Optical network
B.Digital subscriber line (DSL)
C.Internet Protocol (IP) telephony
D.Wireless local-area network (WLAN)
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