Computer Networking
Which of the following is considered a broadband communications channel?

coaxial cable
microwave circuits
All of these
fiber optic cable
satellites systems

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Computer Networking
Which of the following technique is used for fragment?

one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
a technique used in best-effort delivery systems to avoid endlessly looping packets
All of these
None of these

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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.
They will all load-balance.
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.
The updated information will replace the existing routing table entry.

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