?????????640-721 IUWNE

Implementing Cisco Unified Wireless Networguide Essentials
????? 640-721
????? CCNA Wireless
????? 90??65??
????? ??
???? ???? ???????? ????????
????

640-721 IUWNE Implementing Cisco Unified Wireless Networguide Essential ????CCNA Wireless ???????????????????????????????? WLAN ????????????????????????????????????????????????????? IUWNE Implementing Cisco Unified Wireless Network Essential ???????????
????

??????????????????????????????????????????????????????????????
WLAN ??????

* ??????????????????DSS?OFDM?MIMO????? ??????????? ??????????????CSMA/CA?????????
* ?????????? ???????Bluetooth?WiMAX?ZigBee?????????????????
* ??????????????????????FCC?ETSI?802.11a/b/g/n?WiFi Alliance????
* WLAN RF ??????? ????RF ???/???EIRP???????ETC????
* ??????????????????? ???????SSID –> WLAN_ID –> ???????? — >VLAN?802.1q ??????????
* ????? ?????IBSS?BSS?ESS???????????????????????????????????????????
* 802.11 ???????????????????802.1X?EAP?TKIP?AES????
* ???? ????????????/????????????????????????

??????? ????? LAN ???

* ?????????? ????? ?????? ?????????????????? MAC?LWAPP???????? AP ???????????? AP????????????????
* Cisco Mobility Express Wireless ????????Smart Business Communication System — SBCS?Cisco Config Agent — CCA?526WLC?521AP – ???????????????????????
* ????????? AP ????????????????HREAP???????????????????
* ????????? AP ???????????????????OTAP?DHCP?DNS????????????1 ? – 2 ? – 3 ??n+1 ???????
* ????????? 2 ?????? 3???????????????????????? ????????
* WLAN ????????????? ???? WLC ?????????????????WLAN?NTP?CLI ??? Web UI?CLI ??????LAG AP????????
* ??????? ???? ?????????????????????????????????????
* RRM ???

????? ?????????????

* ?????? OS WLAN ???Windows?Apple???? Linux????
* Cisco ADU ???????
* ???? CSSC ???
* CCX ????? 1 ? 5 ???

???? WLAN ?????????

* ????? ?????????????????????????? ???????????????MFP?IPS????
* ?????EAP-TLS?EAP-FAST?PEAP?LEAP???????PSK?802.1X?WPA/WPA2???????
* ??????TKIP?AES ??? WPA/WPA2???????
* ????????????PSK?EAP ??????? EAP ???RADIUS???????

???? WCS ???

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* WCS ???????? Navigator??????????????????
* WCS ???????/??????????????????????????OS ?????????????????????????????????
* ????????? AP ???????????????Configuration ??????
* WCS ????????????????????????????????????? AP ????
* WCS ? Monitor ??????????????? WLAN ?????

???? WLAN ???????????????????????

* ??????????? ????????????????????? WLAN ????????????????
* ??????? ????????? VoWLAN ????????????????? RF ????????????????????????? RF ????????????? ???????????? ??????????? AP ??????? ?? RF ??? ?????????
* WLC show?debug?logging ????????
* WCS ?????? ??????????? ???????????
* ?????? ??????????????? WLC ??????????????? OS ???
* WLC WLAN ??????????????? ????CLI?Telnet?ssh?http?https????????????????????

QUESTION 68
After performing some testing on a Catalyst switch in a lab, it is connected to the
production network to another Catalyst switch via the supervisor Gigabit Ethernet port.
Soon after this, users complain that they have lost all connectivity to the network.
What could have caused this to happen?

Actualtests.org – The Power of Knowing
A. You did not issue the set spantree uplinkfast enable 1/1 command before connecting to
the corporate switch.
B. You did not make the trunk mode set to on or desirable for the trunk to the supervisor
of the other switch.
C. You did not make the VTP mode transparent in the new switch.
D. The dynamic CAM entries were not cleared after the new switch was connected to the
network.
E. The new switch had the wrong VTP domain name.

QUESTION 69
A switch is configured for an ISL trunk, with the trunk mode set to on. A new switch is
added to the network, but the trunk will not come up.
What is the probable cause of this problem?
A. The native VLANs are not the same.
B. The trunks need to be set to “on” or “auto”.
C. The trunks need to be set to “desirable” or “nonegotiate”.
D. The VTP domain names carried in the Dynamic Inter-Switch Link (DISL) messages
are not the same.
E. The Unidirectional Link Detection timers are shorter than the Spanning Tree Protocol
(STP) timers.
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