多項選擇題You are the network consultant from passguide.com. In which situation you will advice your customer to implement data centers?（）

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


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2.單項選擇題Which Cisco product family can simultaneously implement firewall, VPN, content security, network access control, virtualization, anD content filtering?（）

A.intrusion prevention systems
B.catalyst switches
C.adaptive security appliances
D.protect link gateway

3.單項選擇題Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）

A.Voice gateway
B.Private branch exchange (PBX)
C.Advanced audio conferencing software
D.IP telephone

4.單項選擇題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

5.單項選擇題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

7.多項選擇題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

8.單項選擇題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

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

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

10.單項選擇題Which software-based security threat is typically spread from user to user via e-mail?（）

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