多項選擇題

Which three IP multicast group concepts are true?（）

A. If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
B. A router does not have to be a member of a multicast group to receive multicast data.
C. A router must be a member of a multicast group to send to the group.
D. A router does not have to be a member of a multicast group to send to the group.
E. If a packet is sent to a multicast group address, all members of the multicast group will rece ive it.
F. A router must be a member of a multicast group to receive multicast data.

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多項選擇題

Refer to the exhibit. What two statements are true?（）

A. This is the designated router (DR) on the FastEthernet 0/0 link.
B. The output was generated by the show ip interface c ommand.
C. The router was configured with the commands:r outer ospf 1 network 172.16.6.0 0.0.0.255 area 1
D. The IP address of the backup designated router (BDR) is FE80::205:5FFF:FED3:5808.
E. Interface FastEthernet 0/0 was configured with the ipv6 o spf 1 area 1 command.
F. OSPF version 2 has been enabled to support IPv6.

單項選擇題

Which IPv6 address correctly compresses the IPv6 unicast address 2001:0:0:0:0DB8:0:0:417A?（）

A. 2001:0DB8:417A
B. 2001::0DB8::417A
C. 2001:::0DB8::417A
D. 2001:0D B8:0:0:417A
E. 2001::DB8:0:0:417A
F. 2001:::0DB8:0:0:417A

宁国都颈装饰工程有限公司

Which three IP multicast group concepts are true?（）

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Refer to the exhibit. What two statements are true?（）

Which IPv6 address correctly compresses the IPv6 unicast address 2001:0:0:0:0DB8:0:0:417A?（）