Compare the shadow-paging recovery scheme with the log-based recovery schemes in terms of ease of implementation and overhead cost.
Answer to relevant QuestionsConsider a database consisting of 10 consecutive disk blocks (block 1, block 2, . . ., block 10). Show the buffer state and a possible physical ordering of the blocks after the following updates, assuming that shadow paging ...Logging of updates is not done explicitly in persistent programming languages. Describe how page access protections provided by modern operating systems can be used to create before and after images of pages that are ...Consider an object-oriented database system based on a client-server architecture, with the server acting as a data server.a. What is the effect of the speed of the interconnection between the client and the server on the ...Explain how the following differ: fragmentation transparency, replication transparency, and location transparency.If we apply a distributed version of the multiple-granularity protocol of Chapter to a distributed database, the site responsible for the root of the DAG may become a bottleneck. Suppose we modify that protocol as ...
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