Computer Networking
The packets switching concept was first proposed

in the early 1960s for military communication systems, mainly to handle speech
in the late 1950s for Defense Ministry of US
in the late 1980s for the Defense Ministry of US.
All of these
None of these

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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
None of these
2 and 3 only
3 only

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Computer Networking
What is a stub network?

A network with only one entry and no exit point.
A network with more than one exit point.
A network that has only one entry and exit point.
A network with more than one exit and entry point.

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