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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

3 votes
1 answer
4501
Fill the Synchronisation Table
Synchronisation Mechanism Mutal Exclusion Progress Bounded Waiting Deadlock Remarks Lock Variable Strict Alternation Peterson's Solution Dekker's Algorithm Test and Set Lock SWAP Fetch And Add / Test And Add
Synchronisation MechanismMutal ExclusionProgressBounded WaitingDeadlockRemarksLock Variable Strict Alternation Peterson's Solution Dekker's Algorithm Test...
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1 votes
4 answers
4502
Calculate the number of levels of outer page required
In a paged virtual memory organization with 32 bit virtual address and 1 KB page size PTE is 32 bits. The number of levels of paging required to limit the outer page table fit in one page frame is ________
In a paged virtual memory organization with 32 bit virtual address and 1 KB page size PTE is 32 bits. The number of levels of paging required to limit the outer page tab...
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0 votes
1 answer
4504
Can someone help me to find out neumericals on File Directory Structure .
Please help me understanding the concepts of Disk Block Address Disk Block SIze and numericals
Please help me understanding the concepts of Disk Block AddressDisk Block SIze and numericals
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0 votes
1 answer
4508
file system size
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0 votes
1 answer
4509
Exponential average
in this question alpha =0.25. but how we can determine that alpha
in this question alpha =0.25. but how we can determine that alpha
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1 votes
0 answers
4510
size of the page table
If the no of pages in a 32 bit machine is 8kB then what is the size of the page table? a. 8kb b. 16kB c. 4 KB d. Cant say Ans: a How is the answer a
If the no of pages in a 32 bit machine is 8kB then what is the size of the page table?a. 8kbb. 16kBc. 4 KBd. Cant sayAns: a How is the answer a
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0 votes
1 answer
4511
Virtual Memory
What is the maximum process size that we can have in a 32 bit operating system?How is that limit calculated.
What is the maximum process size that we can have in a 32 bit operating system?How is that limit calculated.
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2 votes
1 answer
4513
Round Robin Scheduling
How round robin will work
How round robin will work
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3 votes
2 answers
4514
CPU utilization
If the waiting time for a process is p and there are n processes in the memory then the CPU utilization is given by, a. $\frac{p}{n}$ b. $p^{n}$ c. $1-p^{n}$ d. $n-p^{n}$
If the waiting time for a process is p and there are n processes in the memory then the CPU utilization is given by,a. $\frac{p}{n}$b. $p^{n}$c. $1-p^{n}$d. $n-p^{n}$
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4 votes
4 answers
4517
Fork
what if the program like this(t1 is copied to all or printf will copied to all child) main() { t1=0,t2=0; t2=fork(); Fork(); Printf("Hi"); Fork(); t1=Fork(); Printf("hi"); } Arjun sir , I don't know the buffer concept.please explain with tree method. How many child and how many time Hi printed.
what if the program like this(t1 is copied to all or printf will copied to all child)main(){t1=0,t2=0;t2=fork();Fork();Printf("Hi");Fork();t1=Fork();Printf("hi");}Arjun s...
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3 votes
3 answers
4518
Fork
What is the output and how many child(what is the code of all other child .what they copied from parent give tree diagram) t1=0;t2=0; Fork(); Printf("hi"); t1=Fork(); Printf("hi"); t2=fork(); printf("hi); fork(); printf("hi);
What is the output and how many child(what is the code of all other child .what they copied from parent give tree diagram)t1=0;t2=0;Fork();Printf("hi");t1=Fork();Printf("...
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2 votes
3 answers
4519
how many surfaces are required
pls xplain the last line of the qs,"records cannot span 2 records" and what effect does it bring to the problem
pls xplain the last line of the qs,"records cannot span 2 records" and what effect does it bring to the problem
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4 votes
1 answer
4520
dual mode operation- operating system
What is the purpose of dual-mode operation? To enable the operating system to take control of the processor. To save power. To protect the OS and hardware from corruption. To distinguish an ordinary user from a super user. what about 3rd option???option a is correct??
What is the purpose of dual-mode operation?To enable the operating system to take control of the processor.To save power.To protect the OS and hardware from corruption.To...
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