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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

$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{2020}&\textbf{2019}&\textbf{2018}&\textbf{2017-1}&\textbf{2017-2}&\textbf{2016-1}&\textbf{2016-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 2 &4&2&2&2&3&2&2&1&1&1&2.1&4
\\\hline\textbf{2 Marks Count} & 4 &1&3&4&4&3&2&2&4&3&1&3&4
\\\hline\textbf{Total Marks} & 10 &6&8&10&10&9&6&6&9&7&\bf{6}&\bf{8.1}&\bf{10}\\\hline
\end{array}}}$$

Highest voted questions in Operating System

34 votes
4 answers
151
Consider the resource allocation graph in the figure.Find if the system is in a deadlock stateOtherwise, find a safe sequence
34 votes
3 answers
152
Dirty bit for a page in a page tablehelps avoid unnecessary writes on a paging devicehelps maintain LRU informationallows only read on a pageNone of the above
34 votes
4 answers
154
A process executes the codefork(); fork(); fork();The total number of child processes created is$3$$4$$7$$8$
33 votes
1 answer
155
32 votes
2 answers
162
The root directory of a disk should be placedat a fixed address in main memoryat a fixed location on the diskanywhere on the diskat a fixed location on the system diskany...
32 votes
4 answers
163
Thrashingreduces page I/Odecreases the degree of multiprogrammingimplies excessive page I/Oimprove the system performance
32 votes
2 answers
164
I/O redirectionimplies changing the name of a filecan be employed to use an existing file as input file for a programimplies connecting $2$ programs through a pipeNone of...
32 votes
3 answers
165
When the result of a computation depends on the speed of the processes involved, there is said to becycle stealingrace conditiona time locka deadlock
32 votes
2 answers
166
The essential content(s) in each entry of a page table is / areVirtual page numberPage frame numberBoth virtual page number and page frame numberAccess right information
32 votes
2 answers
167
The data blocks of a very large file in the Unix file system are allocated usingcontinuous allocationlinked allocationindexed allocationan extension of indexed allocation...