Refer to the exhibit. What three statements are true about the IS - IS configuration?（）

A.Because it is running IS - IS in IP - only mode, RTD will not transmit CLNS packets
B.IP routing updates between RTC and RTD will be IP datagrams that are encapsulated by HDLC
C.The SNPA for RTE is the source data link address that is used to transmit frames to RTD
D.IP routing updates between RTC and RTD will be CLNS datagrams that are encapsulated by HDLC
E.The NET for RTE will be 49.0150.0019.06b7.fd5f.00
F.IP routing updates between RTC and RTD will be IP datagrams that a re encapsulated by CLNS

A.S1(config)# interface fastethernet 0/1   S1(config - if)# ip helper - address 10.0.0.2
B.S1(config)# interface fastethernet 0/1   S1(config - if)# ip helper - address 20.0.0.1
C.R1(config)# interface fastethernet 0/0   R1(config - if)# ip help er - address 20.0.0.2R   1(config - if)# ip helper - address 20.0.0.3   R1(config - if)# ip helper - address 20.0.0.4   R1(config - if)# exit   R1(config)# interface fastethernet 0/1   R1(config - if)# ip helper - address 10.0.0.1
D.R1(config)# interface fastethernet 0/0   R1 (config - if)# ip helper - address 20.0.0.1   R2(config)# interface fastethernet 0/0   R2(config - if)# ip helper - address 20.0.0.1   R3(config)# interface fastethernet 0/0   R3(config - if)# ip helper - address 20.0.0.1   R4(config)# interface fastethernet 0/0   R4(config - if)# ip helper - address 20.0.0.1
E.S1(config)# interface fastethernet 0/1   S1(config - if)# ip helper - address 10.0.0.2   R2(config)# interface fastethernet 0/0   R2(config - if)# ip helper - address 20.0.0.1   R3(config)# interface fastethernet 0/0   R3(config - if) # ip helper - address 20.0.0.1   R4(config)# interface fastethernet 0/0   R4(config - if)# ip helper - address 20.0.0.1

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 recei ve 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 multic ast group will receive it.
F. A router must be a member of a multicast group to receive multicast data.