多项选择题

ACompanyisusing6to4tunnelsintheirIPv6network.Whichtwost……

A Company is using 6to4 tunnels in their IPv6 network. Which two statements are true about thesetunnels？（）

A.In a 6to4 tunnel， the first two bytes of the IPv6 address will be 0x2002 and the next four byteswill be the hexadecimal equivalent of the IPv4 address
B.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the2002：1315：4463：1：：/64 IPv6 address
C.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/48IPv6 address
D.In a 6to4 tunnel， the first two bytes of the IPv6 address will be locally derived and the next twobytes will be the hexadecimal equivalent of the IPv4 address
E.In a 6to4 tunnel， the IPv4 address 192.168.99.1 would be converted to the 2002：c0a8：6301：：/16IPv6 address

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多项选择题Acompanyisusing6to4tunnelingwithintheirIPv6network.Whichtwostatementsaboutthiskindoftunnelingareaccurate？（）

A.6to4 is a manual tunnel method
B.Prepending a reserved IPv6 code to the hexadecimal representation of 192.168.0.1 facilitates6to4 tunneling
C.Each 6to4 site receives a /48 prefix in a 6to4 tunnel
D.2002：：/48 is the address range specifically assigned to 6to4
E.Prepending 0x2002 with the IPv4 address creates an IPv6 address that is used in 6to4tunneling

单项选择题CompanynetworkisimplemtingIPv6intotheirexistingIPv4netwrok.WhichstatementistrueaboutincorporatingIPv6intoanalreadyexistingIPv4network？（）

A.Only OSPF version 3 can be utilized for routing IPv4 and IPv6
B.IPv4 and IPv6 networks can be routed simultaneously
C.IPv6 can be routed using the same routing protocol versions as IPv4
D.A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them
E.None of the other alternatives apply

多项选择题ToenableBGPtunnelingovertheIPv4backbone，theIPv4address192.168.30.1isconvertedintoavalidIPv6address.WhichthreeIPv6addressesareacceptableformatsfortheIPv4address？（）

A.192.168.30.1：0：0：0：0：0：0
B.0：0：0：0：0：0：192.168.30.1
C.：：192.168.30.1
D.C0A8：1E01：：
E.192.168.30.1：：
F.：：C0A8：1E01

单项选择题Thecommand clearipv6ospfprocess wasissuedonarouter.Whatdoesthiscommandaccomplish？（）

A.The route table is cleared. Then the OSPF neighbors are reformed
B.The OSPF adjacencies are cleared and initiated again
C.The OSPF database is repopulated and then the shortest path first （SPF） algorithm isperformed.
D.The shortest path first （SPF） algorithm is performed on the LSA database
E.None of the other alternatives apply

多项选择题Refer to the exhibit. What two statements are true？（）

A.The IP address of the backup designated router （BDR） is FE80：：205：5FFF：FED3：5808
B.This is the designated router （DR） on the FastEthernet 0/0 link
C.Interface FastEthernet 0/0 was configured with the ipv6 ospf 1 area 1 command
D.OSPF version 2 has been enabled to support IPv6
E.The output was generated by the show ip interface command