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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

#3481
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0 answers
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A system using fixed partitioning memory allocation technique where 10 partitions are available and each partition size is 90KB. The request of processes ... 80 KB. Total internal fragmentation and external fragmentation?Please answer it.
#3482
487
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2 answers
1 votes
i got 44 as answer. givne answer is 48they took PTE to be 3 Bytescorrect answer is?
#3483
532
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0 answers
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#3484
509
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1 answers
0 votes
Given disk block size, disk block address size, number of direct and single, double, triple indirect blocks.n = ( No of direct addresses + (db size/dba) ... of filesystem or max size of file? How do we calculate the other parameter?Thanks.
#3485
8.9k
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1 answers
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which is not the state of the process in OS1)Privileged2)Running3)Ready4)Blocked
#3486
1.2k
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3 answers
2 votes
A file system with 512 GB disk uses a file descriptor with 16 direct block addresses, 1 indirect block address, 1 doubly indirectly block address and 1 triple indirect block ... is____________(in MB).Ans: 8.26 but in MadeEasy it is 8 how..?
#3487
251
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1 answers
0 votes
To change mode from privileged(kernel) to nonprivileged(user) is privileged instruction always necessary or it is architecture dependent?
#3488
2.7k
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1 answers
2 votes
Main memory is partition into Chunks inI. Simple Paging.II. Virtual memory PagingIII. Simple segmentation.IV. Virtual memory segmentationa) I & II b) I & ... II and III d) AllAns::(a) is it Correct..?
#3489
481
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1 answers
0 votes
I want to divide a page table into 2 page tables (outer and inner). Single page table has 2^20 entries with Page Size of 2^5 Bytes and Page Entry of ... What should be the number of entries in Outer Page Table? What is the formula ?
#3490
437
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1 answers
0 votes
Please help in part b) What are the potential outcomes?Answer:
#3491
1.2k
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4 answers
3 votes
My doubt is as follows: If deadlock is there, processes will be busy waiting in wait loop. So, decision on which process enters C.S. is not made in ... correct to say progress is violated? I am not clear to conclude about bounded wait.
#3492
2.9k
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1 answers
0 votes
Which of the following is an example of operating system developed in indiaa)BeOSb)BOSSc)Haikud) Open BSD
#3493
539
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1 answers
0 votes
Given following data, find average access time. Please explain the solution.
#3494
1.0k
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0 answers
1 votes
does B satisfy BW?
#3495
454
views
1 answers
0 votes
If the no of pages in a 32 bit machine is 8kB then what is the size of the pagetable?a. 8kbb. 16kBc. 4 KBd. Cant say
#3496
1.3k
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3 answers
1 votes
#3497
372
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1 answers
0 votes
Consider the four processes with burst times of 100, 200, 300, and 400 all processes arrived at time 0. Each process spends first 10% of its execution ... Time First (SRTF) algorithm for scheduling. Calculate the completion time of P3?
#3498
243
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0 answers
0 votes
Consider the following variation in Peterson's solution for 2 processes.shared char want[2] = {0,0};shared int turn = 0;1. P_i()2. { ... Which of the following statements is/are true?i) Mutual exclusion guaranteedii)Progress is achieved
#3499
907
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0 answers
0 votes
Consider the following systemFind the total number of safe sequences?
#3500
686
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1 answers
0 votes
consider a system where each file is associated with a 16 bit number.for each file ,each user should have the read and write capability.how much memory is needed to store each user's access ... C) 64KB D) 128KB