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3 years ago

Can you plug a usb 2.0 into a 3.0 port on your computer

1 answer:

8 0

If you are plugging in something that uses USB 2.0 into a USB 3.0 port, then yes you can, as the port is backwards compatible. Although, you will only get USB 2.0 speeds.

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Using the program below, explain what the output will be at LINE A. 1 #include 2#include 3#include 4 5 int value - 128; 6 7 int

slega [8]

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.

5 0

3 years ago

What data unit is encapsulated inside a packet?

viva [34]

Answer: datagram

Explanation:

7 0

4 years ago

Read 2 more answers

Which of the following would not be considered a polymer?

miskamm [114]

Correct answer would be A) quartz. Plastic, nylon, and rubber can all be broken down or heated to make it expand, and be used in common products.

Hope this helped :)

3 0

3 years ago

Read 2 more answers

Traceroute would be best suited for which of the following tasks?

sleet_krkn [62]

The answer is A, or Locating bottlenecks in a network.

3 0

2 years ago

how do you call the squares method to compute the first five squares and store the result in an array numbers

IRINA_888 [86]

Answer:

The method can be called using:

int[] returnarray = Squares();

Where returnarray represents the name of the array

Explanation:

To answer this, I will make an assumption that the Square method is an int array method (i.e. it returns array).

So, to call the method from main, an array has to be declared to get the values:

int[] returnarray = Squares();

Then an iteration is created to iterate through the array in order to print the array elements.

for (int i = 0; i < returnarray.length; i++)

System.out.print(returnarray[i]+ " ");

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The answer ends here

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As an addition, the complete program that includes the method and the main is:

public class Main{

public static int [] Squares(){

int [] arr = new int[5];

for(int i = 1;i<6;i++){

arr[i-1] = i*i;

}

return arr;

}

public static void main(String[] args) {

int[] returnarray = Squares();

for (int i = 0; i < returnarray.length; i++)

System.out.print(returnarray[i]+ " ");

}

}

8 0

3 years ago