Computer Networking
You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?

255.255.255.255
255.240.0.0
255.252.0.0
255.248.0.0
255.254.0.0

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Computer Networking
What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?

Router (config-router) # no routing updates
Router (config-if) # passive-interface
Router (config-router) # passive-interface s0
Router (config-if) # no routing

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