61. To increase the response time and throughput, the kernel minimizes the frequency of disk access by keeping a pool of internal data buffer called
62. What is the output of this program?
#include<stdio.h>
#include<fcntl.h>
int main()
{
int fd, count;
char ch[10];
fd = open("example.txt",O_RDWR|O_CREAT);
write(fd,"linux",5);
lseek(fd,2,SEEK_END);
write(fd,"man",3);
lseek(fd,0,0);
count = read(fd,ch,10);
printf("%s\n",ch);
return 0;
}
#include<stdio.h>
#include<fcntl.h>
int main()
{
int fd, count;
char ch[10];
fd = open("example.txt",O_RDWR|O_CREAT);
write(fd,"linux",5);
lseek(fd,2,SEEK_END);
write(fd,"man",3);
lseek(fd,0,0);
count = read(fd,ch,10);
printf("%s\n",ch);
return 0;
}63. Default action of SIGSEGV is
64. To open a file file1 with cursor at line number 4
65. Which sed command deletes the specified address range
66. What is the output of this program?
#include<stdio.h>
int main()
{
int fd[3],count;
if (pipe(fd) != 0)
perror("pipe");
count = write(fd[2],"Hello",6);
printf("%d\n",count);
return 0;
}
#include<stdio.h>
int main()
{
int fd[3],count;
if (pipe(fd) != 0)
perror("pipe");
count = write(fd[2],"Hello",6);
printf("%d\n",count);
return 0;
}67. Which GDB command can be used to put a breakpoint at the beginning of the program?
68. Which is the core of the operating system?
69. Which command is used to display the operating system name
70. Which one of the following function is used to add the kobject to sysfs?
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