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计算机
Your network uses the172.12.0.0 class B address. You need to support 459 hosts per subnet, while accommodating the maximum numbe
Your network uses the172.12.0.0 class B address. You need to support 459 hosts per subnet, while accommodating the maximum numbe
admin
2009-05-19
44
问题
Your network uses the172.12.0.0 class B address. You need to support 459 hosts per subnet, while accommodating the maximum number of subnets. Which mask would you use?
选项
A、255.255.0.0.
B、255.255.128.0.
C、255.255.224.0.
D、255.255.254.0.
E、None of the above
答案
D
解析
Explanation:
To obtain 459 hosts the number of host bits will be 9. This can support a maximum of 510 hosts. To keep 9 bits for hosts means the last bit in the 3rd octet will be 0. This gives 255.255.254.0 as the subnet mask.
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