Summary

In this unit, we have seen how LAN and WAN protocols get information into the node, where it can then be delivered to the processes at the higher layers. WAN technologies and protocols are used where geographically dispersed networks and subnetworks need to be interconnected.

   Review Questions and Exercises

See the Review Questions and Exercises section after the Unit 2 Summary in your textbook Protocol Analysis to test what you have learned so far.

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