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System calls, Processes, Threads, Inter‐process communication, Concurrency and synchronization. Deadlock. CPU scheduling. Memory management and Virtual memory. File systems. Disks is also under this

$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{2020}&\textbf{2019}&\textbf{2018}&\textbf{2017-1}&\textbf{2017-2}&\textbf{2016-1}&\textbf{2016-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 2 &4&2&2&2&3&2&2&1&1&1&2.1&4
\\\hline\textbf{2 Marks Count} & 4 &1&3&4&4&3&2&2&4&3&1&3&4
\\\hline\textbf{Total Marks} & 10 &6&8&10&10&9&6&6&9&7&\bf{6}&\bf{8.1}&\bf{10}\\\hline
\end{array}}}$$

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Previous GATE Questions in Operating System

41 votes
3 answers
62
GATE CSE 2017 Set 2 | Question: 08
In a file allocation system, which of the following allocation scheme(s) can be used if no external fragmentation is allowed? Contiguous Linked Indexed $1$ and $3$ only $2$ only $3$ only $2$ and $3$ only
In a file allocation system, which of the following allocation scheme(s) can be used if no external fragmentation is allowed?ContiguousLinkedIndexed$1$ and $3$ only$2$ on...
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28 votes
7 answers
63
GATE CSE 2017 Set 2 | Question: 33
A system shares $9$ ... describes current state of the system? Safe, Deadlocked Safe, Not Deadlocked Not Safe, Deadlocked Not Safe, Not Deadlocked
A system shares $9$ tape drives. The current allocation and maximum requirement of tape drives for that processes are shown below:$$\begin{array}{ccc} \textbf{Process} &...
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48 votes
7 answers
67
GATE CSE 2017 Set 1 | Question: 18
Threads of a process share global variables but not heap heap but not global variables neither global variables nor heap both heap and global variables
Threads of a process shareglobal variables but not heapheap but not global variablesneither global variables nor heapboth heap and global variables
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30 votes
5 answers
68
GATE CSE 2017 Set 2 | Question: 07
Which of the following is/are shared by all the threads in a process? Program counter Stack Address space Registers (I) and (II) only (III) only (IV) only (III) and (IV) only
Which of the following is/are shared by all the threads in a process?Program counterStackAddress spaceRegisters(I) and (II) only(III) only(IV) only(III) and (IV) only
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14 votes
3 answers
70
GATE CSE 1988 | Question: 10iib
Given below is solution for the critical section problem of two processes $P_0$ and $P_1$ ... until false Determine of the above solution is correct. If it is incorrect, demonstrate with an example how it violates the conditions.
Given below is solution for the critical section problem of two processes $P_0$ and $P_1$ sharing the following variables:var flag :array [0..1] of boolean; (initially fa...
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2 votes
0 answers
71
GATE CSE 1988 | Question: 2xi
A modern day machine typically has an atomic TEST AND SET instruction. Why?
A modern day machine typically has an atomic TEST AND SET instruction. Why?
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7 votes
4 answers
72
GATE CSE 1988 | Question: 2xb
State any undesirable characteristic of the following criteria for measuring performance of an operating system: Waiting time
State any undesirable characteristic of the following criteria for measuring performance of an operating system:Waiting time
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9 votes
5 answers
73
GATE CSE 1988 | Question: 2xa
State any undesirable characteristic of the following criteria for measuring performance of an operating system: Turn around time
State any undesirable characteristic of the following criteria for measuring performance of an operating system:Turn around time
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28 votes
5 answers
78
GATE CSE 1989 | Question: 2-iv
Match the pairs in the following: ...
Match the pairs in the following:$$\begin{array}{ll|ll}\hline \text{(A)} & \text{Virtual memory} & \text{(p)} & \text{ Temporal Locality} \\\hline \text{(B)} & \text{Sha...
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