Which IP telephony component provides call processing, such as signaling, that in a traditional voice network is provided by switching equipment, such as a PBX?（）

单项选择题Which software-based security threat is typically spread from user to user via e-mail?（）

A.Virus
B.Trojan horse
C.Denial of service
D.Data interception

单项选择题Which Cisco product is a hardware component that supports content filtering and other gateway security functions for the Catalyst 6500 Series?（）

A.Cisco Firewall Services Module (FWSM)
B.Cisco Private Internet Exchange (PIX) Firewall
C.Cisco VPN/Security Management Solution (VMS)
D.Cisco Internetwork Operating System (IOS) Firewall

单项选择题Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）

A.Connects client devices wireless protocol
B.Crosses metropolitan, regional, or national boundaries
C.Limited in a single building, a group of buildings, or even a single room
D.Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)

单项选择题Cisco Technical Support Services portfolio provide customers resources that help ensure that Cisco products operate efficiently, remain highly available, and benefit from up-to-date system software. Is it correct?（）

A.Yes
B.No

单项选择题Which cisco product portfolio allows users to access their email, voice, and fax messages from A single inbox anytime, anywhere?（）

A.Cisco WebEx Connect
B.Cisco Unity
C.CiscoUnified Personal Communicator
D.CiscoIntegrated Messaging