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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

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

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Recent questions in Operating System

41 votes
3 answers
3201
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
3202
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
3206
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
3207
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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0 votes
1 answer
3208
Gate_2017_Set_1_9
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1 votes
3 answers
3209
GATE 2017-1
How is the answer 6.5
How is the answer 6.5
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0 votes
3 answers
3210
gate 2017 cs just doubt
does Random page replacement algorithm suffers from belady's anomaly?
does Random page replacement algorithm suffers from belady's anomaly?
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0 votes
0 answers
3211
Safe Sequence
I am getting 14 , what you think? intial choice can be A or C , and then we have 3! choice for both the branches.
I am getting 14 , what you think?intial choice can be A or C , and then we have 3! choice for both the branches.
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0 votes
1 answer
3212
Test Series
Consider a system with logical address space of 4GB and page size is 8KB, physical address space is 256MB. How many bits required to access an entry in single level page table and in inverted page table respectively? A. 19, 15 B. 15, 15 C. 15, 19 D. 19, 19
Consider a system with logical address space of 4GB and page size is 8KB, physical address space is 256MB. How many bits required to access an entry in single level page ...
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0 votes
1 answer
3213
GB Gatebook_Mocktest2(OS)
Which of the following statements is FALSE? (A) Each thread has own stack (B) Starvation implies deadlock (C) Smaller page size increases the page table size (D) User level process can not modify its own page table entries
Which of the following statements is FALSE?(A) Each thread has own stack(B) Starvation implies deadlock(C) Smaller page size increases the page table size(D) User level p...
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3 votes
4 answers
3216
Gatebook_Mocktest2(Operating Systems)
Process executes the following code for (i=0;i<5,i++) for (j=0;j<5,j++) fork(); The no of child processes created is ?
Process executes the following codefor (i=0;i<5,i++) for (j=0;j<5,j++) fork(); The no of child processes created is ?
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0 votes
0 answers
3217
Scheduling
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2 votes
2 answers
3218
Maximum File Size
I am getting 282. Answer given is 256..??
I am getting 282. Answer given is 256..??
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0 votes
1 answer
3219
How large of a disk can this file system support
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0 votes
0 answers
3220
ACE test
How can this be true...? I guess answer is b
How can this be true...? I guess answer is b
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