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Next: [30] Queueing Network Up: No Title Previous: [10] Terminology

[20] Miscellaneous

  1. [7] Under what circumstances an open-loop error control protocol (e.g., an error correcting Hamming code) is preferable to feedback type protocols (e.g., ARQ retransmission protocols) for error control?

  2. [7] One of the problems with layered network architectures is the potential for duplication of functionality at different layers, which might lead to inefficiencies; give an example of this.

  3. [6] The ATM cell format and the IP datagram format include a header checksum (i.e., a checksum covering the header but not the payload). Why?

George Polyzos
Wed Mar 13 15:53:29 PST 1996