This set of Linux Debugging questions and answers focuses on dup, fcnlt, lseek and read System Calls. 1. What is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { pid_t fd; char ch; int count; fd = open("san.c",O_RDONLY); do{ count = read(fd,&ch,1); printf("%c",ch); }while(count); return 0; } a) it will print nothing b) it … Read more
This set of Tricky and Buggy questions and answers focuses on malloc, calloc, free and realloc Calls. 1. What is the output of this program? #include<stdio.h> int main() { int *ptr; ptr = (int *)calloc(1,sizeof(int)); *ptr = 10; printf("%d\n",*ptr); return 0; } a) 0 b) -1 c) 10 d) none of the mentioned 2. What … Read more
This set of Linux Debugging questions and answers focuses on malloc, calloc, free and realloc Calls. 1. This program will allocate the memory of ___ bytes for pointer “ptr”. #include<stdio.h> #include<stdlib.h> int main() { int *ptr; ptr = realloc(0,sizeof(int)*10); return 0; } a) 0 b) 10 c) 40 d) none of the mentioned 2. What … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. UNIX/Linux kernel is? a) Monolithic b) Micro c) Exo d) Nano 2. Monolithic kernel a) is highly … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. Command used to check shared memory is a) ipcs b) ipcs -m c) ipcs -s d) ipcs … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. Which is true regarding pipes? a) half duplex b) full duplex c) message boundaries are preserved d) … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. If a signal is received by a process, when will it be processed? a) It is processed … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. Given a code snippet below? #define PERMS (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. Each process has unique a) fd table b) file table c) inode table d) data block table … Read more
Here is a listing of Linux / Unix Technical Interview Questions & Answers for experienced IT professionals as well as fresh engineering graduates. These questions can be attempted by anyone focusing on Linux Development and Systems programming. 1. On x86-32 Linux, at which address the code segment of the program starts? a) 0x00000000 b) 0x08048000 … Read more
