Computer Networking
In geosynchronous orbit, satellite

moves simultaneously
remains in a fixed position related to points on earth
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.

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Computer Networking
An encyclopedic database

is generally free
is an information utility that specializes in storing and searching information
is easy for beginners to use
All of these
None of these

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Computer Networking
Why does the data communication industry use the layered OSI reference model?1. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.2. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.3. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.4. It encourages industry standardization by defining what functions occur at each layer of the model.

1 only
3 only
2 and 3
1 and 4

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