單項選擇題Two sites are using a multisite centralized call processing model. The voice gateway on the remote branch has lost IP connectivity to its Cisco CallManager server. Which feature enables the remote gateway to take the role of the call agent during the WAN failure? ()

A.automated alternate routing (AAR)
B.Cisco CallManager Attendant Console
C.real-time protocol (RTP)
D.Survivable Remote Site Telephony (SRST)


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B.when WLSE detects an AP failure, it automatically increases the power and cell coverage of nearby APs
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3.多項選擇題Which two statements best describe enhanced wireless security encryption?()

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B.CKIP and TKIP protect AES encryption keys
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4.多項選擇題What are three facts control plane policing? ()

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D.treats the control plane as a separate entity with its own ingress (input) and egress (output) ports
E.provides the control plane with a separate token bucket
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5.多項選擇題Which two statements are true about the Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access version 2 (WPA2) security solutions?()

A.both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key (PSK)
B.both WPA and WPA2 address all known Wired Equivalent Privacy (WEP) vulnerabilities in the IEEE 802.11i security implementation
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