Memory Management


Q41.

Consider six memory partitions of sizes 200 KB, 400 KB, 600 KB, 500 KB, 300 KB and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?
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Q42.

A processor can support a maximum memory of 4GB, where the memory is word-addressable (a word consists of two bytes). The size of the address bus of the process or is at least bits________.
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Q43.

Dirty bit is used to indicate which of the following?
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Q44.

In a 64- bit machine, with 2 GB RAM, and 8 KB page size, how many entries will be there in the page table if its is inverted?
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Q45.

Which of the following are the likely causes of thrashing?
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