Which two IntServ functions are required on a router？（）

多项选择题Whatthreestatementsaretrueaboutthevariousdeploymentsofthe802.1xExtensibleAuthenticationProtocol（EAP）？（）

A.EAP-FAST has the ability to tie login with non-Microsoft user databases
B.EAP-TLS supports static passwords
C.PEAP supports one-time passwords
D.LEAP does not support multiple operating systems
E.LEAP supports Layer 3 roaming
F.PEAP does not work with WPA

多项选择题FordefiningtheQoSpoliciesforeachtrafficclass，whichparametersshouldbeidentified？（）

A.minimum bandwidth guarantee
B.average bandwidth guarantee
C.optimum bandwidth guarantee
D.maximum bandwidth rate
E.IP precedence F priority

单项选择题AcmeCompanyhasofficesaroundthecountry.WiththeuseofCiscoUnifiedCallManager，thecompanyhasdeployedaVoIPnetworkinamultisitecentralizedconfiguration.WhichIOSgatewayfeatureshouldbedeployedtoenableVoIPdevicestoregisterwithalocalgatewayandcontinuetofunctionwhentheconnectiontotheCiscoUnifiedCallManagerisbroken？（）

A.gatekeeper multizone
B.Call Admission Control （CAC）
C.Automatic Alternate Routing （AAR）
D.Survivable Remote Site Telephony （SRST）

单项选择题WhichQoSpreclassificationoptionwillrequiretheuseoftheqospre-classifycommandfortheVPNtraffic？（）

A.VPN traffic needs to be classified based on the Layer2 header information
B.VPN traffic needs to be classified based on the IP precedence or DSCP
C.VPN traffic needs to be classified based on IP flow or Layer 3 information， such as source and destination IP address
D.VPN traffic with Authentication Header （AH） needs to preserve the ToS byte

多项选择题WhichtwostatementsabouttheWiredEquivalentPrivacy（WEP）encryptionmechanismaretrue？（）

A.the two methods of authentication using the WEP encryption are open and shared key
B.the 802.11 standard defines WEP security using 128-bit keys
C.WEP can provide stronger authentication through the use of LEAP， PEAP， or EAP-FAST
D.WEP is a scalable encryption solution that uses static keys for authentication
E.WEP security provides only one-way authentication
F.WEPv2 offers improved encryption by replacing the RC4 encryption mechanism with the AES （symmetric block cipher） mechanism