Computer Networking
Which of the following conditions is used to transmit two packets over a medium at the same time?

Asynchronous
None of these
Contention
Collision
Synchronous

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Computer Networking
Two connected routers are configured with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

The update will be ignored and no further action will occur.
The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.
The updated information will be added to the existing routing table.
They will all load-balance.
The updated information will replace the existing routing table entry.

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