In order to maintain security， with which hop count are IPv6 neighbor discovery packets sent？（）

多项选择题WhichtwotunnelingtechniquessupportIPv6multicasting？（）

A.6to4
B.6over4
C.ISATAP
D.6PE
E.GRE

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