Computer Networking
The 802.5 standard implements a way for preventing collisions on the network. How are collisions prevented when using this standard?

Collision detection
Switched repeaters
Token passing
CSMA/CD
Time sharing

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Computer Networking
The packets switching concept was first proposed

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

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Computer Networking
What is a stub network?

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

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