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12 votes
4 answers
2
GATE CSE 2023 | Question: 13
Which one or more of the following options guarantee that a computer system will transition from user mode to kernel mode? Function Call malloc Call Page Fault System Call
Which one or more of the following options guarantee that a computer system will transition from user mode to kernel mode?Function Callmalloc CallPage FaultSystem Call
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29 votes
3 answers
3
GATE CSE 2008 | Question: 66
A process executes the following code for(i=0; i<n; i++) fork(); The total number of child processes created is $n$ $2^n-1$ $2^n$ $2^{n+1} - 1$
A process executes the following codefor(i=0; i<n; i++) fork();The total number of child processes created is$n$$2^n-1$$2^n$$2^{n+1} - 1$
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34 votes
4 answers
4
GATE CSE 2012 | Question: 8
A process executes the code fork(); fork(); fork(); The total number of child processes created is $3$ $4$ $7$ $8$
A process executes the codefork(); fork(); fork();The total number of child processes created is$3$$4$$7$$8$
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24 votes
8 answers
6
GATE CSE 2019 | Question: 17
The following C program is executed on a Unix/Linux system : #include<unistd.h> int main() { int i; for(i=0; i<10; i++) if(i%2 == 0) fork(); return 0; } The total number of child processes created is ________________ .
The following C program is executed on a Unix/Linux system :#include<unistd.h int main() { int i; for(i=0; i<10; i++) if(i%2 == 0) fork(); return 0; }The total number of ...
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15 votes
5 answers
8
ISRO2017-51
Wha is the output of the following program? main() { int a = 10; if(fork()) == 0)) a++; printf("%d\n",a); } 10 and 11 10 11 11 and 11
Wha is the output of the following program?main() { int a = 10; if(fork()) == 0)) a++; printf("%d\n",a); }10 and 11101111 and 11
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0 votes
3 answers
10
#CPCB
How many helloWorld lines are printed by the program: #include <stdio.h> #include <stdlib.h> void myFunc() { if (fork() == 0) { fork(); printf(“helloWorld\n”); exit(0); } return ; } int main(){ printf(“helloWorld\n”); myFunc(); printf(“helloWorld\n”); return 1; }
How many helloWorld lines are printed by the program:#include <stdio.h>#include <stdlib.h void myFunc(){ if (fork() == 0){ fork(); printf(“helloWorld\n”); exit(0); } ...
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2 votes
3 answers
11
System Call FORK()
Int main () { fork(); printf("a"); fork(); printf("b"); return 0; } How many distinct outputs are possible of above code? And also give outputs
Int main (){fork();printf("a");fork();printf("b");return 0;}How many distinct outputs are possible of above code? And also give outputs
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3 votes
1 answer
12
fork
Consider the following code segment : int main (void) { for (int i=2; i<=5; i++) { fork( ); } printf (“GOCLASSES”); How many times “GOCLASSES” is printed by the above code?
Consider the following code segment :int main (void) { for (int i=2; i<=5; i++) { fork( ); }printf (“GOCLASSES”);How many times “GOCLASSES” is printed by the ab...
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1 votes
2 answers
15
OS handout
For following code how many times the '*' will printed? main() { int i,n ; for(i = 1 ; i<=n ; ++i) { fork(); printf("*"); } }
For following code how many times the '*' will printed?main(){ int i,n ; for(i = 1 ; i<=n ; ++i) { fork(); printf("*"); }}
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3 votes
2 answers
19
#OS Fork () tell the O/P?
A process executes the following segment of code : for(i = 1; i <= n; i++) fork (); fork (); The number of new processes created is
A process executes the following segment of code :for(i = 1; i <= n; i++) fork (); fork ();The number of new processes created is
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0 votes
1 answer
20
Fork() system call doubt
void main() { int n = 1; if(fork()==0) { n = n<<1; printf(“%d, “, n); n = n <<1; } if(fork()==0) n=n+700; printf(“%d, “,n); } Which of the following output is not possible? 2,4,1,701,704 1,2,4,704,701 2,704,4,701,1 1,704,2,4,701
void main() { int n = 1; if(fork()==0) { n = n<<1; printf(“%d, “, n); n = n <<1; } if(fork()==0) n=n+700; printf(“%d, “,n); }Which of the following output is not ...
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