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

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

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)

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