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问题

On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?

A.Deleting unusable addresses through the creation of many subnets.

B.Combining routes to multiple networks into one supernet.

C.Reclaiming unused space by means of changing the subnet size.

D.Calculating the available host addresses in the AS.

E.None of the above

参考答案
正确答案:B
解析:Explanation:
In the networking world route aggregate means combining routes to multiple networks into one. This is also known as route summarization or supernetting. It is normally used to reduce the number of route entries in the routing table by advertising numerous routes into one larger route.
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