Computer Networking
What command will permit SMTP mail to only host 1.1.1.1?

access-list 10 permit tcp any host 1.1.1.1 eq smtp
access-list 110 permit ip smtp host 1.1.1.1
access-list 10 permit smtp host 1.1.1.1
access-list 110 permit tcp any host 1.1.1.1 eq smtp

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Computer Networking
The network layer, in reference to the OSI model, provide

None of these
the interface between the X.25 network and packet mode device
data link procedures that provide for the exchange of data via frames that can be sent and received
the virtual circuit interface to packet-switched service
All of these

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