Questions

This is a common error while compiling C program in Linux. This error occurs when you are using pthread_create function to create threads in your programs.

To fix this problem ensure following points:
Include header file pthread.h in your program.
Add –lpthread linker flag with compilation command.
1- Include Header file
#include <stdio.h>
#include <pthread.h>
...
...
2- Compile command
gcc main.c -o main -lpthread

Good customer service means having thorough knowledge of your inventory, experience with your products, and being able to help customers make the best choices for them.

Applicant should answer that being in a wholesale market, he/she would plan and direct advertising and promotional activities to attract more retailer suppliers. Promotional activities like posters, contests, coupons, give-away to create extra interest in the purchase of a product or services from customers or retailers.

Sound intensity is measured in decibels(db). Sound pollution above 120 db becomes more hazardous and have adverse affects on human life.