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


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1.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

2.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

3.單項選擇題What does a router do?()

A.Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)
B.Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)
C.Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)
D.Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)

4.單項選擇題The cisco telepresence portfolio provides industry-leading video-conferencing solutions , how does the Cisco acquisition of tandberg strengthen its position?()

A.it enablescisco to eliminate product redundancies and improve margins
B.it will givecisco products A strategic advantage by providing privileged access to the TIP
C.it providescisco with its first high-end telepresence offering
D.it allowscisco to quickly broaden its product portfolio to better serve customer needs

5.單項選擇題Why is the Cisco Integrated Services Router product line A good choice for customers?()

A.it is A point product solution that addresses A single need
B.it simplifies purchasing because there is only one model to choose.
C.it integrates multiple services into A single platform and reduces operating costs.
D.it provides customers with an opportunity to increase the number of devices in their network

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