Computer Networking
CSMA (Carrier Sense Multiple Access) is

None of these
a method of determining which device has access to the transmission medium at any time
network access standard for connecting stations to a circuit-switched network
a very common bit-oriented data link protocol issued by ISO.
a method access control technique for multiple-access transmission media.

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

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