單項(xiàng)選擇題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?（）

A.Advanced call-handling software, such as Cisco Unity
B.Call-management hardware and software, such as CiscoCallManager
C.Client-based software, such as CiscoSoftPhone
D.Voice gateways, such as the Cisco VG248 Analog Phone Gateway


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1.單項(xiàng)選擇題Which network technology allows for the monitoring of active communication networks to diagnose problems and gather statistics for network administration?（）

A.Content networking
B.Campus local-area networking
C.Network management
D.Network security

3.多項(xiàng)選擇題Which three of these are benefits of telepresence and video collaboration?（）

A.do more with less
B.provide a unified tool for all business processes
C.influence competitive advantage and business agility through faster decision-making and new business processes and models
D.eliminate miscommunication
E.reduce the need to personalize communications with customers
F.transform your business and organization and be greener

4.單項(xiàng)選擇題Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）

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

5.單項(xiàng)選擇題Which WLAN device is often used to make wireless connections between buildings or campuses?（）

A.access point
B.client adapter
C.bridge
D.router