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 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

多项选择题As a TestKing instructor you are giving a lecture on the historical context of Cisco. You point out that a computer scientist started the Cisco Corporation. One of the attendants asks you when and where Cisco was founded. What should you respond? ()

A.Massachusetts Institute of Technology
B.Harvard
C.1978
D.Stanford
E.1991
F.California Polytechnic Institute
G.1984
H.1996

多项选择题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

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.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

单项选择题Which WLAN device is often used to make wireless connections between buildings or campuses?（）

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