Ignoring overhead for directories and file descriptors, consider a file system in which files are stored in blocks of 16K bytes. For each of the following file sizes, calculate the percentage of wasted file space due to incomplete filling of the last block: 41,600 bytes; 640,000 bytes; 4.064,000 bytes.
Answer to relevant QuestionsDirectories can be implemented either as “special files” that can only be accessed in limited ways or as ordinary data files. What are the advantages and disadvantages of each approach? What is an embedded system? The implementation of mutexes within the eCos kernel does not support recursive locks. If a thread has locked a mutex and then attempts to lock the mutex again, typically as a result of some recursive call in a complicated ...List and briefly define three classes of intruders. For the DAC model discussed in Section 15.3, an alternative representation of the protection state is a directed graph. Each subject and each object in the protection state is represented by a node (a single node is used for ...
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