单项选择题
A.DHCP clients will automatically default to the DNS root servers for all DNS requests in the IP stacks locally.
B.DHCP clients will use the IP set in the option 150 command.
C.DHCP clients will use the DNS entry assigned by the ISP.
D.DHCP clients will have no DNS server set in the IP stack.
多项选择题 Authenticationforuserdatatrafficisimportant,butsoisauthenticationforIPvoicetraffic.TheCisco830802.1featureprovidesaneasiermethodforallowingIPvoicetrafficthroughtheVPN,becauseit（）.
多项选择题 YourServiceProviderdoesnotsupportLinkFragmentationandInterleave,butupstreamserializationdelayonyourbroadbandlinkisaffectingvoicequality.Whichtwomitigationstrategiesareviable?（）
单项选择题 Refer to the exhibit. Given the CPE deployment model, the Enterprise applications shown, and the functions being provided as designated, the appropriate product choice is（）.
