| 21. | The interface visible to the host system passes network layer addresses directly to a physical layer device.
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| 22. | The Utah Telecommunication Open Infrastructure Agency provides service at one network layer higher through a fiber network.
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| 23. | APPN manages communication between machines, including routing, and operates at the transport and network layers.
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| 24. | However using all layers is overkill, as ISO 15765 provides its own Transport / Network layers.
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| 25. | The MPLS Header is added between the network layer header and link layer header of the OSI model.
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| 26. | NCPs include fields containing standardized codes to indicate the network layer protocol type that the PPP connection encapsulates.
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| 27. | You could work your way up through the network layers to try to figure out what is broken.
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| 28. | Hop-by-hop is the fundamental characteristic of the IP Internetwork Layer and the OSI Network Layer.
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| 29. | A network layer provides automatic replication / distribution of the application graph using a reliable multi-cast system.
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| 30. | IP datagrams, Ethernet Frames, or other network layer packets are encapsulated in one or more GSE Packets.
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