单项选择题
A.0
B.1
C.255
D.256
多项选择题 WhichtwotunnelingtechniquessupportIPv6multicasting？（）
单项选择题 Youaredesigningyournetworktobeabletousetrunks.AspartofthisprocessyouarecomparingtheISLand802.1Qencapsulationoptions.Allofthesestatementsaboutthetwoencapsulationoptionsarecorrectexceptwhichone？（）
单项选择题 HowwillEIGRPv6reactifthereisanIPv6subnetmaskmismatchbetweentheGlobalUnicastaddressesonapoint-to-pointlink？（）