Computer Networking
Terminals are required for

realtime, batch processing, and timesharing
realtime, timesharing, and distributed processing
realtime, distributed processing, and manager inquiry
realtime, timesharing, and message switching
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 and 4
3 only
2 and 3
1 only

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