Computer Networking
What are reasons for creating OSPF in a hierarchical design?1. To decrease routing overhead2. To speed up convergence3. To confine network instability to single areas of the network4. To make configuring OSPF easier

1, 2 and 3
3 only
2, 3 nd 4
3 and 4

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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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