Which two tunneling techniques support IPv6 multicasting？（）

单项选择题Youaredesigningyournetworktobeabletousetrunks.AspartofthisprocessyouarecomparingtheISLand802.1Qencapsulationoptions.Allofthesestatementsaboutthetwoencapsulationoptionsarecorrectexceptwhichone？（）

A. Both support normal and extended VLAN ranges.
B. ISL is a Cisco proprietary encapsulation method and 802.1Q is an IEEE standard.
C. ISL encapsulates the original frame.
D. Both support native VLANs.
E. 802.1Q does not encapsulate the original frame.

单项选择题HowwillEIGRPv6reactifthereisanIPv6subnetmaskmismatchbetweentheGlobalUnicastaddressesonapoint-to-pointlink？（）

A.EIGRPv6 will form a neighbor relationship.
B.EIGRPv6 will not form a neighbor relationship.
C.EIGRPv6 will form a neighbor relationship， but with the log MSG： "EIGRPv6 neighbor not on a commonsub net."
D.EIGRPv6 will form a neighbor relationship， but routes learned from that neighbor will not be installed inthe routing table.

多项选择题WhichthreeofthesestatementsaboutDynamicTrunkingProtocolarecorrect？（）

A. It supports autonegotiation for both ISL and IEEE 802.1Q trunks.
B. It must be disabled on an interface if you do not want the interface to work as a trunk or start negotiation to become a trunk.
C. It is a point-to-multipoint protocol.
D. It is a point-to-point protocol.
E. It is not supported on private VLAN ports or tunneling ports.

单项选择题WhatisthefloodingscopeofanOSPFv3LSA，ifthevalueoftheS2bitissetto1andtheS1bitissetto0？（）

A.link local
B.area wide
C.AS wide
D.reserved

单项选择题WhichofthesecorrectlyidentifiesadifferencebetweenthewayBPDUsarehandledby802.1wand802.1D？（）

A. 802.1D bridges do not relay BPDUs.
B. 802.1w bridges do not relay BPDUs.
C. 802.1D bridges only relay BPDUs received from the root.
D. 802.1w bridges only relay BPDUs received from the root.