Computer Networking
Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is 255.255.255.224?

Router (config) #ip subnet-zero
Router (config) #no ip classful
Router (config) #ip unnumbered
Router (config) #ip classless

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Computer Networking
You want to create a standard access list that denies the subnet of the following host: 172.16.144.17/21. Which of the following would you start your list with?

access-list 10 deny 172.16.48.0 255.255.240.0
access-list 10 deny 172.16.64.0 0.0.31.255
access-list 10 deny 172.16.136.0 0.0.15.255
access-list 10 deny 172.16.144.0 0.0.7.255

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

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