What two situations could require the use of multiple routing protocols? （）

A. when all equipment is manufactured by Cisco
B. when there are multiple paths to destination networks
C. because having multiple routing protocols confuses hackers
D. when migrating from an older Interior Gateway Protocol (IGP) to a new IGP
E. when using UNIX host - based routers
F. when smaller broadcast domains are desired

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多项选择题

Which two statements are true about the rendezvo us point (RP) in a multicast network?（）

A. The multicast sources must register with the RP to form the multicast distribution tree.
B. An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).
C. The mu lticast receivers must register with the RP to form the multicast distribution tree.
D. An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).
E. An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).
F. To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.

单项选择题

Refer to the exhibit. Based upon the information in the exhibit, which statement is true?（）

A. DHCP requests from the host will be rebroadcasted to R2.
B. To complete t his configuration, the R1 fa0/0 interface must be configured with the ip helper - addresses command.
C. To complete this configuration, the R2 fa0/0 interface must be configured with the ip helper -addresses command.
D. R1 will forward all DHCP requests t o both 192.168.100.1 and 192.168.200.1 as unicast messages.
E. R1 will forward DHCP requests to 192.168.100.1. If there is no response, R1 will then forward the requests to 192.168.200.1.

单项选择题

Refer to the exhibit. Which configuration would correctly enable Host A to acquire an IP address from the DHCP server that is located at 10.1.2.10/24? （）

A.ASw1(config)# interface range FastEthernet 0/1 - 24   ASw1(config - if - range)# ip forward - protocol udp 67   ASw1(config - if - range)# ip forward - protocol udp 68
B.ASw1(config)# interface range FastEthernet 0/1 - 24   ASw1(config - if - range)# ip helper - address 10.1.2.10
C.RTA(config)# interface fastethernet0/0   RTA(config -if)# ip forward- protocol udp 67   RTA(config - if)# ip forwar d- protocol udp 68
D.RTA(config)# interface fastethernet0/1   RTA(config -if)# ip forward- protocol udp 67   RTA(config -if)# ip forward- protocol udp 68
E.RTA(config)# interface fastethernet0/0   RTA(config - if)# ip helper - address 10.1.2.10
F.RTA(config)# in terface fastethernet0/1   RTA(config - if)# ip helper - address 10.1.2.10

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