Is the mapping of page number and frame number done at random in page table by the OS?
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MohammedSunasra asked May 13, 2016 • closed May 13, 2016 by MohammedSunasra

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MohammedSunasra asked May 13, 2016

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Is the mapping of page number and frame number done at random in page table by the OS?
A page table contains the index (i.e the page number ) and the base address of each page in physical memory( i.e frame number at that index). So how is the mapping between page number and frame number is done? Is it done randomly by the OS based on the available memory frame locations?

A page table contains the index (i.e the page number ) and the base address of each page in physical memory( i.e frame number at that index). So how is the mapping betwee...

MohammedSunasra

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MohammedSunasra asked May 13, 2016

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afnanaish asked Apr 23, 2022

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Two nodes (A and B) are on the same network, and distanced by 500-meter. The two nodes are connected via 3 switches, each with a delay of 5 µs. Suppose that both of A and B transmit 1500 bytes at the same exact time and their frames collide. A chooses to retransmit immediately after jam signal is received, and B chooses to retransmit after 50 µs of receiving the jam signal. Assume the transmission speed is 10 Mbps, the channel is CSMA/CD with backoff intervals that are multiples of, the jam signal takes 10 µs to transmit, and the inter-frame gap is 9.6 µs. Find the time required to deliver A’s packet to B

afnanaish

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afnanaish asked Apr 23, 2022

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viral8702 asked Apr 29, 2022

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A frame buffer array is addressed in row major order for a monitor with pixel locations starting from (0,0) and ending with (100,100). What is address of the pixel(6,10)? Assume one bit storage per pixel and starting pixel location is at 0. 1) 1016 2)1006 3) 610 4)616

A frame buffer array is addressed in row major order for a monitor with pixel locations starting from (0,0) and ending with (100,100). What is address of the pixel(6,10)?...

viral8702

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viral8702 asked Apr 29, 2022

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tishhaagrawal asked Dec 4, 2023

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MadeEasy Test Series 2024 - In this question they have asked about the number of context switches that are happening. (Excluding the first and the last context switch). I am getting the answer as 5, according to the answer key it should be 6. I am not pre-empting process P when Q arrives as P has a higher priority than Q, in the solutions they have done the exact opposite, can anyone please tell me whether my approach is correct or I am missing onto something.

tishhaagrawal

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tishhaagrawal asked Dec 4, 2023

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Is the mapping of page number and frame number done at random in page table by the OS?
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