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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

$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}&\textbf{2024-1} & \textbf{2024-2} &\textbf{2023}&  \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} &2&2&3& 2 &4&2&2&2.5&4
\\\hline\textbf{2 Marks Count} & 4&4&3&4 &1&3&1&3.16&4
\\\hline\textbf{Total Marks} & 10&10&9&10 &6&8&\bf{6}&\bf{8.83}&\bf{10}\\\hline
\end{array}}}$$

Recent questions in Operating System

#2841
1.3k
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1 answers
3 votes
1)I was asked, what is the approach for selecting optimal time quantum for Round Robin scheduling.2)What happened in between two time quantum in RR(in detail)?Please provide some answers(maybe with some references/paper link).Thanks.
#2842
3.5k
views
2 answers
3 votes
Mutual Exclusion is important for deadlock to happen. Is this statement necessarily true always ?
#2843
364
views
0 answers
1 votes
#2844
1.2k
views
0 answers
1 votes
I have some doubts :1. If progress property is satisfied as per the statement (If process does not want to enter the critical section , it should not ... wait?I am getting confused , please clarify above doubts with explanation. Thank you.
#2845
402
views
1 answers
4 votes
How to differentiate between deadlock and progress in synchronisation?
#2846
478
views
0 answers
3 votes
What happens if we interchange down of empty and down of mutex in the producer code? Explain in detail.
#2847
1.1k
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2 answers
5 votes
The address sequence generated by tracing a particular program executing in a pure demand paging system with 200 records per page with 1 free main memory frame is ... , 0578, 0500, 0730, 0799, 0600The number of page faults are ________.
#2848
1.6k
views
1 answers
1 votes
A certain hard disk rotates at 6000 rpm. It has 1 KB per sector and 64 sectors/track and has a seek time of 5 msec. Find the time required to read:i. 800 successive sectors?ii. 800 random sectors?
#2849
1.1k
views
1 answers
1 votes
There are two threads which try to solve critical section problem using Test-And-Set instruction.Does the above code prevent deadlock? please provide reason to your answer
#2850
1.2k
views
1 answers
2 votes
Is convoy effect possible in SJF and Priority (preemptive and non preemptive) scheduling ? Please explain your answer.
#2851
639
views
2 answers
1 votes
I encountered 1 question on context switching in Made Easy test series where it is mentioned:Scheduling policy is preemptive priority. Context switch time is 1 unit. ... 1-time unit gap or they can be done simultaneously in the gantt chart?
#2852
516
views
1 answers
3 votes
mutex variable can have value?
#2853
443
views
2 answers
1 votes
processmaximum demandcurrently holdsp17045p26040p360xp440yif a system has total of 150 units of resource then identify which of the following values of X and Y the above system will be in sage ... ,Y=20B X=30 ,Y =20C X=50 Y=10D X=20 Y=30
#2854
349
views
0 answers
1 votes
Consider a CPU which needs to run a round robbin scheduing algo . Size of program is 200kb . It has been stated that hard disk has transfer ... is 10msec. The acceptable time quantum for effective CPU utilisation is _____________ msec
#2855
343
views
0 answers
0 votes
Consider n processes sharing the cpu in a RR fashion. Assuming that each process switch takes n secs, what must be the quantum size q such that the overhead ... process is guaranteed to get its turn at the cpu at least every t secs?
#2856
469
views
0 answers
0 votes
Overlaying is used to run a program, which is longer than the address space of the computer. TRUE/FALSE... plzz justify ??
#2857
674
views
1 answers
0 votes
In SCAN disk scheduling algorithm, we know that SCAN chooses the request that requires shortest seek distance in a preferred direction.What direction SCAN chooses ... first place?How do SCAN & C-SCAN suffer from indefinite postponement?
#2858
425
views
1 answers
0 votes
can someone suggest me any good material, books /videos for understanding the SYNCHRONIZATION IN OS.....????bcoz maximum time i am not able to handle the synchrinization problems correctly
#2859
2.8k
views
1 answers
3 votes
In disk scheduling if header movement direction is not given then which way to move? Please provide any link or source in support of your answer. Thanks
#2860
358
views
0 answers
1 votes
A computer system has the following characterstics :Uses 10GB disk that rotate at1000RPM Have data transfer rate of 10MB/s (for each disk) and have 8ms seek time