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Nadusha1986 [10]
3 years ago
8

What are the FIVE layers in the Internet protocol stack? What are the principal responsibilities of each of these layers?

Computers and Technology
1 answer:
kifflom [539]3 years ago
4 0

Answer: The internet protocol (IP) stack consist of the five layers and their functioning which are as follows:-

  • Application layer:- this layer is responsible for the type of service that is operating the system.It uses protocols like SMTP(Simple mail transfer protocol, FTP(file transfer protocol) etc.
  • Network layer:-this layer is used for the routing and transmission of the data packets through the routes. The exchange of IP packets is done between the server and the client.  
  • Transport layer:-It uses the  protocols TCP(Transmission control protocol) and UDP(User datagram protocol)for splitting the message and sending it to the recipient's address.
  • Data link layer:-it uses the point-to-point protocol for the sending the message from node to node.It also handles the data while inputting and outputting of the physical network.
  • Physical layer:-The working is done in a frame in which the the bits present in one node is transferred to other. It is used for defining the physical parameters like cables, etc.

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Servers <span>are the computers that store network software and shared or private user files.</span>
3 0
3 years ago
**NEED HELP??!! Computer Science Questions!! KNOWING GIMP!!!!
Svetlanka [38]
<span>1. If my memory serves me well,  the answer is true. Free select tool is also called lasso and it’s used to free-hand selection. You can also combine free select tool segments with polygonal segments or other shapes.

2. I think this statement is definitely “False”. As I’ve mentioned before you can combine free selection with other selection features like polygonal by using anchors.

3. I’m not 100% sure, but I guess this one is true. As far as I remember, add to selection mode lets you to add new selection to any existing areas. So I think it’s possible to add selection to the existing one.

4. I think this one is also true. But it allows you just paint it, but it’s also kinda modification. Quick Mask allows you to isolate subject and paint selected object. It helps you not to brush subject accidentally. It’s a very useful tool as for me.

5. Yes, this statement is 100% true. But it could be gray for GIMP, because the mask is coded in gray tones, but I think that black is also gray tone. Color black or gray removes part of selection, and color white adds area to existing selection.

6. According to what I’ve mentioned before this one is also true, so there’s no need for additional explanation.

7. Another tool, similar to the Lasso/Free Select tool is the B) Scissors Tool. As there was mentioned intelligent scissors tool is almost the same as lasso but more user-friendly.

8. It’s false. You must click to the first point of your selection to finish the process or you will lose your selection.

9. I think this one is true. Paths tool includes two or more line segments connected by handle points. These points are kinda anchors I guess.

10. After making a selection using the Paths Tool, I must select the the D) Selection from Path button to turn my path into a selection. You can find it in path tool options.

11. Yes, it’s true, it allows you to make complex selections with curved or straight lines. Just drag one of the anchors to curve the line. Also you can create different geometrical figures with this tool.

12. Yes this is true. But there are much more cool blur filters than only Gaussian blur. Experiment on your own.

13. You can do all of the following given above. Every layer is kinda isolated image and you can modify it however you want.
<span>
14. I’m definitely sure that this statement is true. Just find layer drop down menu and follow the instructions given in this question. It’s simple.</span></span>
8 0
3 years ago
Write a C program (doublecopy) that allows a user to extract some part of an existing file (fileSource) and copy it twice to a n
Slav-nsk [51]

Answer:

Check the explanation

Explanation:

#include <stdio.h>

#include <sys/stat.h>

#include <stdlib.h>

#include <fcntl.h>

#include <errno.h>

#include <unistd.h>

extern int errno;

struct stat st;

int main(int argc, char **argv){

  int num1 = atoi(argv[1]); // Getting num1 from user

  int num2 = atoi(argv[2]); // Getting num2 from user

  char *fileSource = argv[3];

  char *fileTarget = argv[4];

 

  int source_fd = open(fileSource, O_RDONLY); // opening the file in read only mode

  int target_fd = open(fileTarget, O_WRONLY | O_CREAT); // opening the target file in Writeonly mode if file is not found it will create

   

  char *ch = (char *) calloc(num2+num1, sizeof(char));

 

  stat(fileSource, &st);

  if(st.st_size < (num1 + num2)){

      printf("File Size is smaller than the specified bytes\n");

      read(source_fd, ch, st.st_size); // reading the file upto the end

      write(target_fd, ch, st.st_size); // write to the file

      write(target_fd, ch, st.st_size); // two times writing to the file

  }else{

      if(lseek(source_fd, (off_t)num1, SEEK_SET) < 0 ) // moving the cursor to after the specified bytes from the start

      {

          printf("Some Error occured while seeking the file");

          return -1;

      }

      read(source_fd, ch, num2); // reading num2 bytes from the source

      write(target_fd, ch, num2); // writing two times to the target

      write(target_fd, ch, num2);

     

  }

 

  return 0;

 

}

1 2 #include <stdio.h> #include <sys/stat.h> #include <stdlib.h> #include <fcntl.h> #include <errno.h> #include <unistd.h> 4

The code screenshot and code output are attached below.

3 0
3 years ago
Int[] myArray1= new int[24]; int[] myArray2= new int[10]; float[] myArray3= new float[8]; int index1, index =0 for(int index1 =0
anastassius [24]

Answer:

The value of myArray2[index2] when index1 = 12 is 30

Explanation:

In the source code, the formula for myArray2[index2] is;

   myArray2[index2] = index2 + index3 + myArray1[index1],

   myArray1[index1] = index1 * 2,

   index2 = index % 10 (equal to the remainder) and

   index3  = index % 8

When index1 increases to 12 in the for-loop statement, the "myArray1[index1]" is equal to 24, index2 is equal to 2 and index3 is 4. The total sum is equal to 30 and assigned to "myArray2[index2]".

3 0
3 years ago
Which keyboard shortcut can you use to copy data from a cell? HURRY UP PLZ RIGHT NOW HURRY.
Romashka-Z-Leto [24]
The keyboard shortcut used to copy data from a cell is A.) Ctrl + c command +C

I hope this helped!! :)
7 0
3 years ago
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