Answer:
usatestprep literally just does what the name says; it prepares you for tests in america. it doesn't kick you off if you access other windows
Explanation:
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: wifi
Explanation:
because you can't have the internet if you don't have wifi to power it up
Answer:
The class of language the machines recognise is Regular Language (See Explanation Below)
Explanation:
Given
Form δ : Q × Γ → Q × Γ × {R, S}
From the above transition form, it can be seen that the machine cannot read square symbols passed to it.
Regarding the square the machine is currently reading, there are multiple movement of S and it shouldn't be so because any number of the multiple movement can be simulated by exactly one movement of S.
As stated earlier that sequence of moves can be simulated by just one movement.
Let R = the movement
This means the machine can only use right move efficiently.
With this, we can say that the machine only read input string.
This is a characteristic of DFA (Deterministic Finite Automata).
With this, we can conclude that some DFAs will simulate the Turing machine and that they only read regular language.
