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单选题
Your network contains two DHCP servers. The DHCP servers are named DHCP1 and DHCP2. The   internal network contains 1,000 DHCP client computers that are located on a single subnet. A routerseparates the internal network from the Internet. The router has a single IP address on the internal  interface. DHCP1 has the following scope information. èStarting IP address: 172.16.0.1  èEnding IP address: 172.16.7.255  èSubnet mask: 255.255.240.0   You need to provide a fault-tolerant DHCP infrastructure that supports the client computers on the internal  network. In the event that a DHCP server fails, all client computers must be able to obtain a valid IP  address. How should you configure DHCP2?()
A

Create a scope for the subnet 172.16.0.0/20. Configure the scope to use a starting IP address of  172.16.8.1 and an ending IP address of 172.16.15.254.

B

Create a scope for the subnet 172.16.0.0/21. Configure the scope to use a starting IP address of  172.16.0.1 and an ending IP address of 172.16.15.254.

C

Create a scope for the subnet 172.16.8.0/21. Configure the scope to use a starting IP address of  172.16.8.1 and an ending IP address of 172.16.10.254.

D

Create a scope for the subnet 172.17.0.0/16. Configure the scope to use a starting IP address of  172.17.0.1 and an ending IP address of 172.17.255.254.


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