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多項選擇題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.

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1.單項選擇題 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.

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2.單項選擇題 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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3.單項選擇題Using the rules for IPv6 addressing, how can t he address 2031:0000:240F:0000:0000:09C0:123A:121B be rewritten?（）

A. 2031:0:240F::09C0:123A:121B
B. 2031::240F::09C0:123A:121B
C. 2031::240F:9C0::123A:121B
D. 2031::240F:::09C0:123A:121B

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4.單項選擇題 Refer to the exhibit. Which statement is true about the router configuration that is shown ?Select the best response.（）

A. Additional DHCP options will be imported from another DHCP server.
B. The DHCP server pools need to be bound to an interface to operate.
C. This configuration will provide IP configuration information to two different su bnets.
D. Additional DCHP option information needs to be imported from another DHCP server.
E. If the router hands out all the addresses in pool 1, then it will supply addresses from pool 2.

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5.單項選擇題 Refer to the exhibit. Which statement is true about the configuration?（）

A. Hosts belonging to DHCP pool 1 and pool 2 will retain their IP settings for 30 hours before they must renew.
B. Hosts will receive IP settings from pool 1 until the addresses run out, and then hosts will receive the settings from pool 2.
C. Hosts in the 10.10.20.0/24 subnet will u se 10.10.20.50 as its DNS server.
D. DHCP pool 0 needs to have the ip dhcp excluded - address command to exclude the default router and DNS servers.

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