Computer Networking
You want to improve network performance by increasing the bandwidth available to hosts and limit the size of the broadcast domains. Which of the following options will achieve this goal?

Switches configured with VLANs
Managed hubs
Switches
Bridges

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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
1 and 4
3 only
2 and 3

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Computer Networking
The application layer of a network

None of these
establishes, maintains, and terminates virtual circuits
defines the user's port into the network
consists of software being run on the computer connected to the network
All of these

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