Answer:
This is the complete correct program:
#include <stdio.h>
#include<sys/types.h>
#include<unistd.h>
int value = 128;
int main()
{
pid_t pid;
pid=fork();
if (pid==0) /* child process */
{
value +=8;
return 0; }
else if (pid > 0) {/* parent process */
wait (NULL);
printf ("PARENT: value =%d\n" ,value); /* LINEA */
return 0;
}
}
The output of the LINE A is:
PARENT: value = 128
Explanation:
The fork() function used in the program creates a new process and this process is the child process. The child process is same as the original process having its own address space or memory.
In the child process the value of pid is 0. So the if condition checks if pid==0. Then the child process adds 8 to the value of its variable according to the following statement
value +=8;
Now the original process has value = 128. In else if part the parents process has the value of pid greater than zero and this portion of the program is of the parent process :
else if (pid > 0)
{ wait (NULL);
printf ("PARENT: value =%d\n" ,value);
return 0; }
So the value 128 is printed at the end in the output.
wait(NULL) is used to wait for the child process to terminate so the parent process waits untill child process completes.
So the conclusion is that even if the value of the variable pid is changed in the child process but it will not affect the value in the variable of the parent process.
Answer
It makes it easier to produce a high quality product.
Explanation
Project scope is the part of project planning that involves determining and documenting a list of specific project goals, deliverable, tasks, costs and deadlines. in Project management it involves the planning and organization of a company's resources to complete a specific task, event, or action and is usually a one-time event. It is an activity that is engaged in for the primary purpose of making a profit. These activities includes things like production, operations, marketing, and administration
You should make sure no one is looking and make sure you have protection
Answer:
DiffServ
Explanation:
The IP QoS which is fully known as QUALITY OF SERVICE mechanism that involves prioritizing traffic is DIFFERENTIATED SERVICES (DiffServ).
DIFFERENTIATED SERVICES help to differentiate ,arrange ,manage, control and focus on network traffic that are of great significance or important first before network that are less important or by their order of importance in order to provide quality of service and to avoid network traffic congestion which may want to reduce the quality of service when their is to much load on the network .
The travel agents receive compensation from suppliers such as waiting time compensation, night ride compensation, and cancellation compensation.
<u>Explanation</u>:
- The travel agents from ola, uber and other companies usually receive compensation such as 10 percent commission of booking fees. Usually, if the customer cancels the ride the travel agent will receive compensation for that ride. They also receive time compensation for their work.
- For long rides, the travel agents will receive extra compensation for that. Because the distance for that ride will be long. So they will receive these types of compensations from suppliers.
