GATE Overflow | Operating Systems | Test 1 | Question: 20

Bikram asked in Operating System Sep 3, 2016

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An operating system contains 3 user processes each requiring 2 units of resource R. The minimum number of units of R such that no deadlocks will ever arise is ____ (assume no other resource requirement)

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Bikram asked in Operating System Sep 3, 2016

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Answer is - 4

go_editor answered Sep 3, 2016

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Bikram asked in Operating System Sep 3, 2016

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GATE Overflow | Operating Systems | Test 1 | Question: 6
Consider a system having 'm' resources of the same type. These resources are shared by 3 processes A, B and C, which have peak time demands of 3, 4 and 6. The minimum value of 'm' that ensures that ... never occur given that the combined maximum resource requirement of processes B and C at any time is 8 will be ______.

Bikram asked in Operating System Sep 3, 2016

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Bikram asked in Operating System Sep 3, 2016

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GATE Overflow | Operating Systems | Test 1 | Question: 27
Dijkstra's Banker's algorithm in Operating System solves the problem of deadlock avoidance recovery from deadlock mutual exclusion context switching

Bikram asked in Operating System Sep 3, 2016

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deadlock-prevention-avoidance-detection
bankers-algorithm

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Bikram asked in Operating System Sep 3, 2016

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GATE Overflow | Operating Systems | Test 1 | Question: 12
In a multi-user operating system, 20 requests are made to use a particular resource per hour, on average. The probability that no requests are made in 45 minutes is - $e^-{15}$ $e^{-5}$ $1 - e^{-5}$ $1-e^{-10}$

Bikram asked in Operating System Sep 3, 2016

by Bikram

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go-os-1
operating-system
resource-allocation

3 votes

1 answer

Bikram asked in Operating System Sep 3, 2016

575 views

GATE Overflow | Operating Systems | Test 1 | Question: 28
Consider a computer with 64 MB physical memory and 32 bit virtual address space. If the page size is 4KB , then the size of page table in MB is _____________ (Assume 2 bits per page table entry for extra information other than that for addressing)

Bikram asked in Operating System Sep 3, 2016

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GATE Overflow | Operating Systems | Test 1 | Question: 20

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