Computer Networking
For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?

WAN and LAN
All of these
Full duplex and half duplex
Hardware and software

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

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Computer Networking
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?

255.248.0.0
255.254.0.0
255.252.0.0
255.224.0.0
255.240.0.0

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