Operating-systems Questions Set 6:
Physical memory is broken into fixed-sized blocks called ________
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Semaphore is a/an _____ to solve the critical section problem.
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Multithreading on a multi-CPU machine...
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Which data structure is used to keep track of the relationship between a process and its assigned physical memory frames?
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Consider a machine with byte addressable memory of 232 bytes divided into blocks of size 32 bytes. Assume a direct mapped cache having 512 cache lines is used with this machine. The size of tag field in bits is
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What is Waiting time in computer systems?
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The index node (inode) of a Unix-like file system has 12 direct, one single-indirect and one double-indirect pointer The disk block size is 4 kB and the disk block addresses 32-bits long. The maximum possible file size is (rounded off to 1 decimal place) ___________ GB
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Which one of the following statements about user-level threads and kernel-level threads is FALSE?
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The instruction pipeline of a RISC processor has the following stages: Instruction Fetch (IF), Instruction Decode (ID), Operand Fetch (OF), Perform Operation (PO) and Writeback (WB), The IF, ID, OF and WB stages take 1 clock cycle each for every instruction. Consider a sequence of 100 instructions. In the PO stage, 40 instructions take 3 clock cycles each, 35 instructions take 2 clock cycles each, and the remaining 25 instructions take 1 clock cycle each. Assume that there are no data hazards and no control hazards. The number of clock cycles required for completion of execution of the sequence of instruction is
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Which one of the following statements is FALSE?
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