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

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Computer Networking
Synchronous protocols

None of these
are generally used by personal computers
allow faster transmission than asynchronous protocols do
transmit characters one at a time
are more reliable

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