Which two MBGP IPv4 sub-AFIs does the JUNOS software support？（）

单项选择题WithinaBGPconfederation，howareroutingloopsavoided？（）

A.Split horizon.
B.AS confederation sequence.
C.The BFP cluster ID attribute.
D.The BGP originator ID attribute.

单项选择题InBGPgracefulrestart，howdoesapeerrouterindicatetheendofarouteexchange？（）

A.An open message with the E bit set.
B.An update message with the E bit set.
C.An open message with an end-of-RIB marker.
D.An update message with an end-of-RIB marker.

单项选择题WhichdefaultJUNOSsoftwareroutingtablecontainsIPv6unicastroutes？（）

A.inet.6
B.ipv6.0
C.inet.0
D.inet6.0

多项选择题WhichthreestepsareusedtoconfigureIPv6inJUNOSsoftware？（）

A.Assign 128-bit router ID
B.Enable a routing instance.
C.Assign IPv6 addresses to interfaces.
D.Add IPv6 family support to interfaces

单项选择题ArouterreceivesanIPv6packetwhichis2000bytesinlength.TheMTUoftheoutgoinginterfaceis1500bytes.Whatactionwilltheroutertake？（）

A.forwards the packet
B.fragments the packet
C.drops the packet silently
D.drops the packet and sends an ICMP message