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Roman55 [17]
3 years ago
9

20 points for ez question lol

Computers and Technology
2 answers:
V125BC [204]3 years ago
7 0

Answer:

Its A, B, D, F

Explanation:

Smart

slega [8]3 years ago
5 0
I think it might be the third on not certain
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The following checksum formula is widely used by banks and credit card companies to validate legal account numbers: d0 + f(d1) +
Aleksandr [31]

Answer:

Here is the JAVA program:

import java.util.Scanner; //to import Scanner class

public class ISBN

{   public static void main(String[] args)  { // start of main() function body

   Scanner s = new Scanner(System.in); // creates Scanner object

//prompts the user to enter 10 digit integer

   System.out.println("Enter the digits of an ISBN as integer: ");    

   String number = s.next(); // reads the number from the user

   int sum = 0; // stores the sum of the digits

   for (int i = 2; i <= number.length(); i++) {

//loop starts and continues till the end of the number is reached by i

          sum += (i * number.charAt(i - 1) ); }

/*this statement multiplies each digit of the number with i and adds the value of sum to the product result and stores in the sum variable*/

          int remainder = (sum % 11);  // take mod of sum by 11 to get checksum  

   if (remainder == 10)

/*if remainder is equal to 10 adds X at the end of given isbn number as checksum value */

  { System.out.println("The ISBN number is " + number + "X"); }

  else

// displays input number with the checksum value computed

 {System.out.println("The ISBN number is " + number + remainder); }  }  }  

Explanation:

This program takes a 10-digit integer as a command line argument and uses Scanner class to accept input from the user.

The for loop has a variable i that starts from 2 and the loop terminates when the value of i exceeds 10 and this loop multiplies each digit of the input number with the i and this product is added and stored in variable sum. charAt() function is used to return a char value at i-1.

This is done in the following way: suppose d represents each digit:

sum=d1 * 1 + d2 * 2 + d3 * 3 + d4 * 4 + d5 * 5 + d6 * 6 + d7 * 7 + d8 * 8 + d9 * 9

Next the mod operator is used to get the remainder by dividing the value of sum with 11 in order to find the checksum and stores the result in remainder variable.

If the value of remainder is equal to 10 then use X for 10 and the output will be the 10 digits and the 11th digit checksum (last digit) is X.

If the value of remainder is not equal to 10, then it prints a valid 11-digit number with the given integer as its first 10 digits and the checksum computed by sum % 11 as the last digit.  

8 0
3 years ago
Which website is important for hacking
Yuliya22 [10]

Answer:

Here's a few

Explanation:

  • SQL Injection attacks. SQL Injection attack is the most common website hacking technique. ...
  • Cross Site Scripting (XSS) ...
  • Denial of Service (DoS/DDoS) ...
  • Cross-site request forgery (CSRF or XSRF) ...
  • DNS Spoofing (DNS cache poisoning) ...
  • Social engineering techniques.

Glad I could help!!

6 0
3 years ago
Create pseudocode to compute the volume of a sphere. Use the formula: V= (4/3)* π r3 where π is equal to 3.1416 approximately, w
MA_775_DIABLO [31]

Answer:

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

Explanation:

3 0
3 years ago
Read 2 more answers
2. Feet to Inches One foot equals 12 inches. Design a function named feetToInches that accepts a number of feet as an argument,
MariettaO [177]

Answer:

See the below the answer written in Matlab

Explanation:

function inches=feetToInches(feet)

prompt='enter the value of feet in digits';

feet=input(prompt)% ask for the value in feet that needs to be converted to inches

inches =feet*12; % converts feet to inches

x=['the value in inches is:  ',num2str(inches)];

disp(x) %display the result of the convertion

end

8 0
3 years ago
In your own words, describe the advantages and disadvantages of the auto-negotiation protocol used in Ethernet communications.
dexar [7]

Answer:

 Auto-negotiation protocol is the modern technology in the networking. This protocol allow the ethernet equipment for automate different instillation steps. This type of protocol use by interconnecting various electronic devices for negotiating the speed of the link.  

Advantages:

  •  The auto negotiation protocol features used to maximize the throughput of data link layer.
  •  This protocol are basically useful in the local area network (LAN), with multiple capability of connections.
  •  The auto negotiation protocol extremely useful in twisted pair which are based on ethernet.

Disadvantages:

  •   This type of protocol are not fixed data links and not used as backbone of the networks.  
  •  Duplex mismatch occur then, it cause significant loss in the packets.

7 0
3 years ago
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