单选题You have a Class C network, and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?（）A255.255.255.192B255.255.255.224C255.255.255.240D255.255.255.248ENone of the above
单选题
You have a Class C network, and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?（）
A
255.255.255.192
B
255.255.255.224
C
255.255.255.240
D
255.255.255.248
E
None of the above
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