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?

255.224.0.0
255.240.0.0
255.254.0.0
255.248.0.0
255.252.0.0

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Computer Networking
You save the configuration on a router with the copy running-config startup-config command and reboot the router. The router, however, comes up with a blank configuration. What can the problem be?

NVRAM is corrupted.
You didn
The configuration register setting is incorrect.
The newly upgraded IOS is not compatible with the hardware of the router.

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Computer Networking
In geosynchronous orbit, satellite

remains in a fixed position so that as earth rotates, it can fully cover the earth
None of these
moves faster than the earth's rotation so that it can cover larger portion of earth.
moves simultaneously
remains in a fixed position related to points on earth

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