What is enhanced ER Model? Explain extended ER features: Specialization, Generalization and Aggregation with your clear definitions/ideas/differences in your own words and give at least one appropriate example for each one of them.

, design the information security of an organization

The need to build a new infrastructure to utilize digital technology is constantly increasing, but it is difficult to secure new infrastructure by increasing the number of system resources required indefinitely. If the cost of IT infrastructure is calculated by adding up (1 )fixed and (2) operational costs, what difference will each cost show before and after the introduction of the cloud?

Discuss the interdependence that exists between Database System Development Life Cycle stages.

Q1(a) A class named “Employee” holds information like employee code, name,gender, year of joining. Write a program in C++ to create three objects of employee and enter some data into it through setters. Make getters and setters for all employee information. Then ask the user to enter current year. Display the names of those employees whose tenure is 2 or more than 2 years according to the given current year only using getters

(b)A class named “Employee” holds information like employee code, name,gender, year of joining. Write a program to create five hundred objects (Array of employee objects )of employee and enter some data into it through setters. Make getters and setters for all employee information. Then ask the user to enter current year. Display the names of those employees whose tenure is 5 or more than 5 years according to the given current year only using getters.
Note: employee code is automatically assigned to newly created object by calling default constructor

(b) Define a class StudentReport with the following specification:
Private members :
adno 4 digit admission number
name 20 characters
marks an array of 5 floating point values
average average marks obtained
GETAVG() a function to compute the average obtained in five subject
Public members:
READINFO() function to accept values for adno, name, marks. Invoke the function   
GETAVG()

DISPLAYINFO() function to display all data members of StudentReport on the screen.
You should give function definitions outside the class using scope resolution operator.

Use C++ to answer

the process used to attack networks and the devices on networks. APA FORMAT

Implement synchronous send and receive of one word messages (also known as Ada-style rendezvous), using condition variables (don't use semaphores!). Implement the Communicator class with operations, void speak(int word) and int listen().

speak() atomically waits until listen() is called on the same Communicator object, and then transfers the word over to listen(). Once the transfer is made, both can return. Similarly, listen() waits until speak() is called, at which point the transfer is made, and both can return (listen() returns the word). Your solution should work even if there are multiple speakers and listeners for the same Communicator (note: this is equivalent to a zero-length bounded buffer; since the buffer has no room, the producer and consumer must interact directly, requiring that they wait for one another). Each communicator should only use exactly one lock. If you're using more than one lock, you're making things too complicated.

What are some of the common types of attacks against networks and devices on networks? apa format

In C++, I have 3 files (Main.cpp, Point.cpp, Point.h). When Compiled and run, it produces 2 errors, in Main.cpp "cannot convert from double to point" and in Point.cpp "name followed by :: must be a class or namespace name". How do you go about fixing these errors without editing Main.cpp? Thanks in advance.

//main.cpp

#include <iostream>
#include <cmath>
#include "Point.h"
using namespace std;

const double PI = 3.14159265359;
const double TOL = .0000001; //allows us to do a comparison for double value equality
int main()
{

   int toTest = 0;
   //TEST AS YOU DEVELOP COMMENT OUT EVERYTHING BUT WHAT YOU HAVE IMPLEMENTED
   //AND UNCOMMENT AS YOU CREATE.
   //(you can look below to see what I make this variable to test given things)
   cout << "MUST IMPLEMENT GETTERS BEFORE TESTING \n";
   cout << "What would you like to test? \n";
   cout << "1-value constructor \n";
   cout << "2-copy constructor \n";
   cout << "3-setters test \n";
   cout << "4-translation test \n";
   cout << "5-scaling test \n";
   cout << "6-reflect over x-axis test \n";
   cout << "7-reflect over y-axis test \n";
   cout << "8-rotation \n";
   cout << "9-assignment operator \n";
   cout << "10-operator equals equals \n";
   cout << "11-cin overload \n";
   cout << "12-cout overload \n";
   cin >> toTest;

   Point a; // a should be at (0,0)
   Point b(5.0); //b should be at (5.0,0)
   /* incremental test line
   Point c(-15.3, -32.22); //c should be at (-15.3, -32.33)

   if(toTest==1)
   {
       cout<<"**Value Constructor Test: \n";
       if(abs(a.get_x())<TOL && abs(a.get_y())<TOL &&
           abs(b.get_x()-5)<TOL && abs(b.get_y())<TOL &&
           abs(-15.3-c.get_x())<TOL && abs(-32.22-c.get_y())<TOL)
       {
           cout<<" Value Constructor Works\n" <<endl;
       }
       else
       {
           cout<<" Value Constructor Failed\n"<<endl;
       }
   }
/*   Point d(c);
   if(toTest==2)
   {
       cout<<"\n**Copy Constructor Test: \n";
       if(abs(d.get_x()-c.get_x())<TOL && abs(d.get_y()-c.get_y())<TOL)
       {
           cout<<" Copy Constructor Works\n"<<endl;
       }
       else
       {
           cout<<" Copy Constructor Failed\n"<<endl;
       }
   }

   if(toTest==3)
   {
       cout<<"\n**Setters Test: \n";
       a.set_x(5.3); a.set_y(-3.2);
       if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
       {
           cout<<" Setters Work\n"<<endl;
       }
       else
       {
           cout<<" Setters Failed\n"<<endl;
       }
   }

       if(toTest==4)
   {
       cout<<"\n**Translation Test: \n";
       a.translate(5.3,-3.2);
       if(abs(a.get_x()-5.3)<TOL && abs(a.get_y()+3.2)<TOL)
       {
           cout<<" Translate Works\n"<<endl;
       }
       else
       {
           cout<<" Translate Failed\n"<<endl;
       }
   }

   if(toTest==5)
   {
       cout<<"\n**Scale Test: \n";
       c.scale(-3);
       if(abs(c.get_x()-45.9)<TOL && (abs(c.get_y()-96.66)<TOL))
       {
           cout<<" Scale Works\n"<<endl;
       }
       else
       {
           cout<<" Scale Failed\n"<<endl;
       }

   }

   if(toTest==6)
   {
       cout<<"\n**Reflect Over X-Axis Test: ";
       c.reflect_x();
       if(abs(c.get_y()-32.22)<TOL)
       {
           cout<<" Reflect Over X-axis Works\n"<<endl;
       }
       else
       {
           cout<<" Reflect Over X-Axis Failed\n"<<endl;
       }

   }

   if(toTest==7)
   {
       cout<<"\n**Reflect Over Y-Axis Test: ";
       c.reflect_y();
       if(abs(c.get_x()-15.3)<TOL)
       {
           cout<<" Reflect Over Y-Axis Works\n"<<endl;
       }
       else
       {
           cout<<" Reflect Over Y-Axis Failed\n"<<endl;
       }

   }

   if(toTest==8)
   {
       Point e(-1,0); //e shoule be at (-1, 0)
       cout<<"\n**Rotation of Point Test: ";
       e.rotate(PI/2);
       if(abs(e.get_x())<TOL && abs(e.get_y()+1)<TOL)
       {
           cout<<" Rotation Of PI/2 (90 deg CCW) Worked\n"<<endl;
       }
       else
       {
           cout<<" Rotation Of PI/2 (90 deg CCW) Failed\n"<<endl;
       }
   }

   if(toTest==9)
   {
       cout<<"\n**Operator equals Test: ";
       d=b;
       if((abs(d.get_x()-b.get_x())<TOL) && (abs(d.get_y()-b.get_y())<TOL))
       {
           cout<<" Operator Equals Test Passed\n"<<endl;
       }
       else
       {
           cout<<" Operator Equals Test Failed\n"<<endl;
       }

   }

   if(toTest==10)
   {
       cout<<"\n**Operator equals equals Test: ";
       Point e(-15.3, -32.22);
       if(e==c)
       {
           cout<<" Operator equals equals Test Passed \n"<<endl;
       }
       else
       {
           cout<<" Operator equals equals Test Failed \n"<<endl;
       }
   }

   if(toTest==11)
   {
       cout<<"\n**CIN Test: \ncin the values 10 and 20 to test this with (10,20): ";
       cin>>d;
       if(abs(d.get_x()-10)<TOL && abs(d.get_y()-20)<TOL)
       {
           cout<<"CIN Test Passed\n"<<endl;
       }
       else
       {
           cout<<"CIN Test Failed\n"<<endl;
       }
   }

   if(toTest==12)
   {
       cout<<"**COUT Test: coutting Points a,b,c: \n";
       cout<<a;
       cout<<b;
       cout<<c;

   }*/
}

//Point.cpp

#include "Point.h"
#include <iostream>
#include <cstdlib>

using namespace std;

double x = 0;
double y = 0;

void Point::point()
{
   x = 0;
   y = 0;
}

void Point::point(double inX)
{
   x = inX;
   y = 0;
}

void Point::point(double inX, double inY)
{
   x = inX;
   y = inY;
}

double getX()
{
   return x;
}

double getY()
{
   return y;
}

void setPoint(double a, double b)
{
  
}

//Point.h

#include <iostream>
#ifndef Point_H;

using namespace std;

class Point
{
public:
static double x;
static double y;

void point();
void point(double x);
void point(double x, double y);

double getX();
double getY();

void setPoint(double a, double b);
};

#endif

l = [0 1 -2 1 1];

d = [2 -2 4 2 2];

r = [-1 1 -1 -2 0];

b = [2 0 -6 1 4];

n = length(d);

x= zeros(n,1);

for i = 2:n

factor = l(i)/d(i-1);

d(i) = d(i) - factor*r(i-1);

b(i) = b(i) - factor*b(i-1);

end

x(n) = b(n)/d(n);

for i = n-1:-1:1

x(i) = b(i)-r(i)*x(i+1) / d(i);

end

x1 = x(1);

x2 = x(2);

x3 = x(3);

x4 = x(4);

fprintf('\nx1 = %f\nx2 = %f\nx3 = %f\nx4 = %f\n',x1,x2,x3,x4);

this is matlab code!

It's a question of getting answers using the Thomas method.

The answer should be x1=1, x2=0, x3=-1, x4=2, x5=1.

Please fix what's wrong.

Using jGRASP, write a Java program named LastnameFirstname11.java, using your last name and your first name, that does the following:

• Defines a method called generateNums. This method will create an array of size x, fill it with random numbers between y and z, then return the array. When you call the method, you must specify the size of the array (x), the beginning of your random number range (y), and the ending of your random number range (z).
• Defines a method called avgNums. You will be able to pass a double array to this method. This method will add up all the numbers in the array. Then it will divide that sum by the size of the array to find the average of all the numbers. Return the average.
• Asks the user for input to determine the array size and what range of random numbers to generate.
• Calls the generateNums method 5 times to create arrays based on the user's input.
  • Store each of the returned arrays into a variable.
• Calls the avgNums method 5 times.
  • Store each of the returned arrays into a variable.
• Prints the results, displaying 4 digits after the decimal.

Please fllll this out thank you

/**
*

* Creates a six-sided die and rolls it 20 times. It outputs the face values and also
* the number of times the die lands on 6.
*
* Creates 2 eight-sided dice and rolls the pair 10 times. It prints out a sequence
* of pairs representing the face values as well as the number of doubles.
*
* Allows the user to repeat the above steps as often as (s)he wishes.
*
* @author (put your name here!!!)
* @version (3-20-19)
*/
import java.util.*;
public class TestDie
{
public static void main (String [] args)
{
Scanner keyIn = new Scanner(System.in);

// display output heading
System.out.println ("Programmer: put your name here!!");
System.out.println ("Course: COSC 111, Winter '19");
System.out.println ("Lab: Exam 2, part 2");
System.out.println ("Due date: 3-20-19\n");

// create a six-sided die
// create a Die object and then call the method setSides to set the number of sides to 6

// roll the die 20 times, output the face value of each roll (4 per line), and the
// number of times the die lands on 6.
// set up a loop that iterates exactly 20 times, and each time through the loop do the following:
// roll the die by calling the method 'roll'; output the face value of the die; check the face
// value to keep track of 6s, and check to see if you have printed 4 numbers already, if yes,
// then advance to the next line.

System.out.println("Rolling a 6-sided die 20 times:" );

// create two eight-sided dice
// create two 'Die' objects and then use the method 'setSides' with each object to set its number of sides to 8

System.out.println("\nRolling a pair of 8-sided dice 10 times:");

// throw a pair of eight-sided dice 10 times, output the face values of each throw as a pair
// and also the number of doubles (both dice land on the same face value)
// set up a loop that iterates exactly 10 times, and each time through the loop do the following:
// roll both die by calling the method 'roll' twice; print out their face values as a pair;
// and check to see if both face values are the same, if yes, keep track of it.

// add a do-while loop to repeat the above code as often as the user wishes

}

}

CPU Company, AMD vs Intel vs ARM

which CPU model that compete between these 3 companies? What's their specification?

CPU Company, AMD vs Intel vs ARM

For tablet or Laptop. or any devices that this CPU is equipped with,

Which one is the BEST, BALANCE, & the WORST? Need Reasons why

1. Research how the virus spread and what damage it caused.
2. Write a brief essay about virus. Explain how the virus worked, how it spread, and any other essential information you can find.