Subnetting Made Easy, VLSM, Cisco® CCNA 640-801 Test Questions, Guaranteed pass

In today's environment it is important to use a summary address when working with IPv4 and large
networks to conserve address space.
In our exhibit we would use a summary address to advertise a single route out the serial interface
of the Wheresville router to the Whoesville router.

Keep in mind that this is a small network but start adding hundreds of networks. We do not want to
advertise hundreds of networks if we can just advertise a few!

We need to be fairly comfortable with VLSM (Variable length subnet mask) on the Cisco® CCNA exam as well as the Microsoft® 70-291 (2003 environment) which is Network Mangement.

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