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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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Recent questions in Operating System

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3 answers
261
#fork #threads
Consider the following program segment of C-programming language: #include<stdio.h> int main() { if (fork() || fork()) fork(); printf("GATE\n"); return 0; } Number of times the above program prints 'GATE' is_?
Consider the following program segment of C-programming language:#include<stdio.h int main() { if (fork() || fork()) fork(); printf("GATE\n"); return 0; } Number of times...
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1 answer
263
Self-doubt
How Progress+bounded waiting --> staration free??
HowProgress+bounded waiting staration free??
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0 answers
264
Applied roots
why option one is correct??
why option one is correct??
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0 answers
265
Self Made Doubt
If it’s written that some synchronization construct statisfies bounded waiting than it means the process is going to wait nearly forever fo it’s turn to execute?
If it’s written that some synchronization construct statisfies bounded waiting than it means the process is going to wait nearly forever fo it’s turn to execute?
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1 answer
267
Self-doubt
We know vfork() shares parents memory.. Does vfork() shares parents resources also??. What about the clone()??
We know vfork() shares parents memory..Does vfork() shares parents resources also??.What about the clone()??
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1 answer
269
Gate Applied Test Series
Question→ Given a system with 3 processes where each process requires at least 2 resources to complete their execution, then the largest number of resources which will guarantee a deadlock is ___ Answer Given is: 1
Question→ Given a system with 3 processes where each process requires at least 2 resources to complete their execution, then the largest number of resources which will ...
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2 answers
270
#self doubt
In round-robin if one process finishes its time quantum and at the same time another process enters the system so which one will enter the ready queue first?
In round-robin if one process finishes its time quantum and at the same time another process enters the system so which one will enter the ready queue first?
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0 answers
273
#CSPC 2019 #OS 3rd edition
Given 1GB USB pen drive which is now formatted using i-node, assuming 32-bit addressing with 1Kbytes blocks with 4 bytes per block pointer. What is maximum file size the file system can store on the disk?
Given 1GB USB pen drive which is now formatted using i-node, assuming 32-bit addressing with 1Kbytes blocks with 4 bytes per block pointer. What is maximum file size the ...
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1 answer
274
Applied Test Series
Consider an indexed file allocation using index nodes (inodes). An inode contains among other things, 7 indexes, one indirect index, one double index, and one triple index. If the disk sector is 512 bytes, which is the closest option for maximum file size in this allocation scheme?
Consider an indexed file allocation using index nodes (inodes). An inode contains among other things, 7 indexes, one indirect index, one double index, and one triple inde...
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1 votes
1 answer
275
#Self Doubt OS CPU scheduling?
Does non preemptive CPU scheduling needs hardware support. kindly explain.
Does non preemptive CPU scheduling needs hardware support.kindly explain.
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0 answers
277
Multi-level Paging
In paging , giving more bits to the innermost table as compared to the outermost page table results in using less physical memory space. Is this statement true always?
In paging , giving more bits to the innermost table as compared to the outermost page table results in using less physical memory space. Is this statement true always?
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0 answers
280
#unversity exam
If there are ‘n’ processes in a system, with the time-quanta less than the CPU burst times of all these processes in a given round, then the number of preemptions is at least: (A) 2n (B) n (C) 2n–1 (D) n–1
If there are ‘n’ processes in a system, with the time-quanta less than the CPU burst times of allthese processes in a given round, then the number of preemptions is a...
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