Computer Networking
What information is displayed by the show hosts command?1. Temporary DNS entries2. The names of the routers created using the hostname command3. The IP addresses of workstations allowed to access the router4. Permanent name-to-address mappings created using the ip host command5. The length of time a host has been connected to the router via Telnet

3, 4, and 5
1 and 4
All of these
1, 2 and 3

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Computer Networking
The data-link layer, in reference to the OSI model, specifies

All of these
the virtual circuit interface to packet-switched service
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

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