Answer:
Randy should deploy SSH to allow the sales department to connect to the company network securely over cellular data signal.
Explanation:
Option A is the correct answer because SSH means Secure Shell. And Secure Shell is a cryptographic network protocol for operating network services securely over an unsecured network. Any network service can be secured with SSH
Option B is not correct because VPN mean virtual private network. And what VPN does is to extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
Option C is not correct because IMEI means International Mobile Equipment Identity and is a number that is use to uniquel identify 3GPP and iDEN mobile phones, as well as some satellite phones.
Option D is not correct because POP3 is an example of email protocol. Post Office Protocol version 3 (POP3) is a standard mail protocol used to receive emails from a remote server to a local email client. POP3 allows you to download email messages on your local computer and read them even when you are offline.
Although a user directory is treated as a file, it is flagged to indicate to the file manager that this file is really a subdirectory whose records are filenames that point to files.
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.
