A Health Care Company wants you to design a website for them. Your first job is to convert the requirements from the company to a formal software requirement specification. Which of the below approach you will choose and why? Justify the steps in detail                                                           [20 Marks]

1. Plan-driven approach
2. Prototype development.
3. Agile approach.

1. Any Approach can be chosen and explained                                                              
2. Requirements should be explained based on health care                                      

Quiz #2 You are only allowed one submission. If you missed the deadline, you will not receive credits. You are not allowed to communicate the question and answer to others.

Background Information:

Ava is starting a new business/company. Within this new business, 90% of the business operations are NOT mission-critical: whereas the other 10% of the business operations are mission-critical. Her new business needs an intranet that consists of two or more local area networks in order to support the business operations. Her understanding of local area network (LAN) is that there are 3 types of LANs available:

• Ethernet

• Token Ring

• FDDI

She does not have sufficient technical knowledge to select the correct local area networks needed to support her business operations. You are asked to propose local area networks needed to support her business operations. Your proposal must include:

1. The number of local area networks that you propose.

2. For every proposed local area network, you must indicate the type.

3. For every proposed local area network, you must specify the reason why this local area network in needed.

Hints:

• You are NOT asked to provide definitions.

• You are NOT asked to describe the differences among these local area networks.

• You are NOT asked to describe how these local area networks work.

ALL IN JAVA

public class Employee
{
   public String strName, strSalary;
  
   public Employee()
   {
       strName = " ";
       strSalary = "$0";
   }
  
   public Employee(String Name, String Salary)
   {
       strName = Name;
       strSalary = Salary;
   }
  
   public void setName(String Name)
   {
       strName = Name;
   }
  
   public void setSalary(String Salary)
   {
       strSalary = Salary;      
   }
  
   public String getName()
   {
       return strName;
   }
  
   public String getSalary()
   {
       return strSalary;
   }
  
   public String toString()
   {
       return(strName + " has a salary of " + strSalary);
   }

}

you will find a class called Employee. This class should include a constructor which sets name to blanks and salary to $0.00 and a constructor which sets name to a starting name and salary to a set amount. Additionally, the class should include methods to set the name and salary and return the name and salary. Create another method to return the name and salary nicely formatted as a string (hint – research the toString method).

You will create a new class called Manager that inherits from the class Employee. Add a field named department of type String. Supply a method toString that prints the manager's name, department, and salary. Remember, you may not change anything in the Employee class.

You will then create a test class that uses the Manager class.   The test class should prompt the user to enter name, department and salary. This information should be stored in an array. Upon entry of 3 employee records, the program should output the information you entered.

Your program should be able to handle a maximum of 3 entries.

You may write the program as a console application or using dialog boxes.

Java coding:

2. Write a method which takes a list list of int , and reverse it. // recursion

3.Write a method which takes a list list of strings , and reverse it. // in different way than the previous

3. Write a two methods which take a list and find the largest integer number in it.

I need to create a web page(JAVASCRIPT) that allows the user to reverse a string. For Example, if the user types Mirror Image, after the button is clicked, the text will say egamI rorriM.You have to implement each button by using a while, do while and for loop.

here is a default code

<html>
<head>
   <title>Mirror</title>
</head>
<body>
   <p id="label1">Original Text: <h1 id="text1">Some text goes here!!!</h1></p>
   <p id="label2">Mirror Text: <h1 id="text2">!!!ereh seog txet emoS</h1>
   <input type="button" value="Reverse (while loop)" /><br />
   <input type="button" value="Reverse (do while loop)" /><br />
   <input type="button" value="Reverse (for loop)" /><br />
  
  
</body>
</html>

1) Select the true statement regarding the establishment of successful communications.

2)

The Shannon-Hartley Theoretical Capacity formula tells you the maximum data rate capacity achievable. By using modern M’ary modulation techniques you can easily reach higher data rate capacities.

a) True

b) False

3)

What is needs to be considered to ensure successful communications over guided or unguided mediums?

4)

Select the correct statement(s) regarding SMF and MMF fiber optic cables.

Exercises: Home Work to do :

  

1)   write BNF grammars for the following sententials: lexemes (not tokens)

-  positive and negative integer numbers

-  floating point numbers

-  variable names in C

------------------------------------

2)   check (recognize) if this code can derive from the given grammar ?



-  swith (tatal)

        {

        case total > 1000 :  cout<<"expensive"; break;

        case total = 1000 :  cout<<"exact";     break;

        case total < 1000 :  cout<<"cheap";     break;

        }

Discussion: How Mobile Phones Power Disaster Relief

Watch the following video, and Provide a critique. Also, think of other possible scenarios where mobile technology can be used to address humanitarian efforts.

https://youtu.be/L9_c1j9VRwE

Q. A sequence X1, X2, ... , Xn is said to be cyclically sorted if the smallest number in the sequence is Xi for some unknown ?, and the sequence Xi, Xi+1, Xn, ... , X1, X2,....Xi-1 is sorted in an increasing order. Design an algorithm to find the position of the minimal element in a cyclically sorted ? distinct elements. (6 points) If your algorithm uses recursion, you need so show the recurrence function. Otherwise, show a closed-end form of the running time function. (2 points) Show that your algorithm in ?(log ?) time. (2 points) (No need to prove the bound).

Q3. Answer with yes or no and give a reason.

1-Is DES vulnerable to a brute-force attack?

2-Is 3DES vulnerable to a brute-force attack?

3- Is AES vulnerable to a brute-force attack?

Please read through the lecture notes on Wicket problem

Wicked Problems: Characteristics

Conklin offered a set of six defining characteristics:

1. You don’t understand the problem until you have developed a solution.

2. Wicked problems have no stopping rule.

3. Solutions to wicked problems are not right or wrong.

4. Every wicked problem is essentially unique and novel.

5. Every solution to a wicked problem is a ‘one shot operation.’

6. Wicked problems have no given alternative solutions.

Explain an example of a wicked problem and justifications why it can be considered a wicked problem and how it satisfies each of the above characteristics.

Please read through the lecture notes on Wicket problem

Wicked Problems: Characteristics

Conklin offered a set of six defining characteristics:

1. You don’t understand the problem until you have developed a solution.

2. Wicked problems have no stopping rule.

3. Solutions to wicked problems are not right or wrong.

4. Every wicked problem is essentially unique and novel.

5. Every solution to a wicked problem is a ‘one shot operation.’

6. Wicked problems have no given alternative solutions.

Explain an example of a wicked problem and justifications why it can be considered a wicked problem and how it satisfies each of the above characteristics.

Create two lists; one contains 5 elements and the other one is empty. Write a python program that iterates through the first one, pops the elements from the end of it, then it pushes them one by one to the empty list. As your program iterates through the first list, clean it before processing the data, meaning if any element is like a special character ( , . ; : ) it must be discarded and not gets pushed to the second list.

Make a 20 by 20 matrix in which diagonal elements are 2, 5, 8, 11 ... 59 and the first column is 21,22,23,24 ... 40 whereas the rest of the elements of the matrix are 9.

Note: you must if, elseif, else, end or/and if, end or/and if, else, end commands in MATLAB.

This lab will focus on creating a better understanding of Selection Sort and Insertion Sort algorithms.

What you need to do

I have provided a driver and a Utility class with three methods. You must finish writing Selection Sort and Insertion Sort in the Utility class. Below is pseudocode for Selection and Insertion Sort, which you may use as a guide. Your selection sort will sort an array of Strings lexicographically, meaning A-Z. Your insertion sort will sort an array of Strings in reverse, meaning Z-A.

                      Selection Sort Pseudo Code

for i = 0 to length(A) min = i

for j = i to length(A) if A[j] < A[min]

min = j end for

                           swap A[i] and A[min]
                      end for

                      Insertion Sort Pseudo Code

for i = 1 to length(A) j=i

while j > 0 and A[j-1] < A[j] swap A[j] and A[j-1]

j=j-1 end while

end for

How do we compare strings to sort them correctly? Use the method compareTo provided in the string class. This method returns a int value and is used as follows:

<str1>.compareTo(<str2>)

If str1 comes before str2, compareTo will return a negative number. If str1 comes after str2, compareTo will return a positive number.
If str1 and str2 are the same, compareTo will return 0.

Driver Output

Unsorted array:
Tom, Steve, Ann, Zoe, Bob, Moana, Naomi, Kevin, Ryan, Nina, Dora, Wanda, Eric

Selection Sorted array from A-Z:
Ann, Bob, Dora, Eric, Kevin, Moana, Naomi, Nina, Ryan, Steve, Tom, Wanda, Zoe

Insertion Sorted array from Z-A:
Zoe, Wanda, Tom, Steve, Ryan, Nina, Naomi, Moana, Kevin, Eric, Dora, Bob, Ann

Driver.java///////

public class Driver {

   public static void main(String[] args) {
       // TODO Auto-generated method stub

       String[] names = {"Tom", "Steve","Ann","Zoe","Bob","Moana","Naomi","Kevin","Ryan","Nina","Dora","Wanda","Eric"};
      
       System.out.println("Unsorted array:");
       Utility.printArray(names);
       System.out.println();
      
       Utility.selectionSort(names);
       System.out.println("Selection Sorted array from A-Z:");
       Utility.printArray(names);
       System.out.println();

       Utility.insertionSort(names);
       System.out.println("Insertion Sorted array from Z-A:");
       Utility.printArray(names);
      
   }

}

Utility.java///////

public class Utility {

   public static void selectionSort(String[] array) {
       //TODO - Sort array from A-Z
   }
  
   public static void insertionSort(String[] array) {
       //TODO - Sort array from Z-A
   }
  
   public static void printArray(String[] array) {
      
       for(int i = 0; i < array.length; i++) {
           System.out.print(array[i]);
           if(i != array.length -1) {
               System.out.print(", ");
           }
       }
       System.out.println();
   }
  
}