Internet caching faces problems of cache coherency which arises when data changes on the originating level without recognition by the cache. Sizes of the cached segments. These policies become very complex on the Internet. Name 2 design decisions made by the authors that you consider incorrect, and explain why. For example, do you agree with the assumptions made by the authors, has the subsequent growth of the Internet invalidated any of their assumptions, etc.
Hierarchical methodology wastes bandwidth.
Lack of distinction in object naming. The write-through scheme used can take a long time with Internet objects and slow down the system. Lack of support for dynamic objects. Inadequate client awareness of caches. Lack of use of MIME header.