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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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1.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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2.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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3.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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4.多項選擇題Which three options are supported as address allocation mechanisms for DHCP on Cisco routers?（）

A. The IP address can be automatically assigned to a host.
B. The IP address can be assigned as a random hash value of the burned - in - address of the lowest - numbered LAN interface on the router.
C. The network administrator can assign a speci fic IP address to a specific host MAC address.
D. The IP address can be assigned from configured pools in a reverse lexicographical order.
E. The IP address can be assigned to a host for a limited time or until the host explicitly releases the address.
F. The IP address can be assigned to a host until the host usurps the assigned value using its own dynamic override mechanism.

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5.多項選擇題 Refer to the exhibit. On the basis of the output, what two conclusions can be reached?（）

A. The default administrative distance has been changed.
B. IS - IS is not enabled.
C. Three physical interfaces are taking part in integrated IS - IS.
D. IS - IS is not redistributing any oth er routing protocols.
E. There are two neighboring routers sending IS - IS routing information.
F. Address summarization is configured.

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