Computer Networking
Which two of the following are true regarding the distance-vector and link-state routing protocols?1. Link state sends its complete routing table out all active interfaces on periodic time intervals.2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.3. Link state sends updates containing the state of its own links to all routers in the internetwork.4. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

1 only
3 only
2 and 3 only
None of these

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Computer Networking
RS-232-G

None of these
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
is an interface between two data circuit terminating equipment as examplified by a local and remote modem
is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment

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Computer Networking
The physical layer, in reference to the OSI model, defines

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

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