All posts by : chebby

 In the final discussion posting please describe what components of cryptography impacted you the most.

 Create one discussion thread and answer the following questions:

(Chapter 10/13): With the advent of ML/AI, what effect do you think this will have on the future of firewalls? What kinds of new implementation techniques do you think will emerge because of ML/AI?

Note: The first post should be made by Wednesday 11:59ET and you should post at least two more times throughout the week to your classmates. Please engage early and often.

Your initial post should be 250-300 words. There must be at least two APA formatted reference (and APA in-text citation) to support your thoughts in the post. Do not use direct quotes, rather rephrase the author’s words and continue to use in-text citations.

Prepare a 3-5 page paper on the future of digital currency litigation and the implications for taxation. What are the pros and cons? How will this ultimately impact the business world?

Your paper should be 3-5 pages long (excluding the title and reference pages) and formatted according to APA.

Compose your essay in APA format, including the introduction and conclusion, and in-text citations for all sources used. In addition to your 3-5 page essay, you must include an APA-style title page and reference page.

 1.1 Oliver would like to know how much money he earns on products that cost less than 5 dollars per unit. 

Write a python function that can take as input a table of sales like the one above, and return the total amount he earned on products that cost less than 5 dollars per unit. 

Note : You don’t need to import a spreadsheet or csv at this stage, just write a function that can take as input any table that has the same model as the one above. 

How would one define business intelligence (BI)? Identify and briefly discuss a real-world application of BI?

250 words in APA format

Objectives: Create a Java program using programming fundamentals (file I/O, loops, conditional statements, arrays, functions)

Problem: In an effort to win a coding competition, you decided to create an awesome Obstacle Warrior game. The game is played on a 2-dimensional board similar to a Chess board, but the dimensions may be different. The minimum size of the board is 2×2. The board will have a Start square and an Exit square that are not stored on the board. Start and Exit squares cannot be the same. Other board squares may contain obstacles in the form of an integer that will define how the warrior position and score will be affected. The obstacle squares can have values from 0 to -10 only. The Start square is always a clear square. All clear squares are marked with # on the board. The Exit square may contain an obstacle that is not a zero. The size of the board, number of obstacles, and Start and Exit squares are all unknow to your code prior to running. This information is stored in a file that your code will read at the beginning of the game. The board.dat file must be read into a 2-D array.

A warrior must start at the Start square and find their way to the Exit square. The warrior can move on the board in any direction including diagonally, one square at a time. A warrior has a running score (integer) maintained from the start of the game until the warrior exits the board. If the warrior lands on an obstacle square with a value of zero, the warrior is sent back to the starting position and the obstacle square will become a normal square (obstacle removed). If the obstacle square has a negative number, that number will reduce the warrior’s score by the value of the obstacle, and the obstacle square will become a clear square (obstacle removed). Each VALID move that the warrior makes without landing on an obstacle will earn the warrior one point. The moves for the warrior are randomly generated by your code in the form of a direction (0-UP, 1-DOWN, 2-LEFT, 3-RIGHT, 4-UPRIGHT, 5-DOWNRIGHT, 6-UPLEFT, 7-DOWNLEFT). If the warrior is at the boundary of the board and your code generates an invalid move, that move will be ignored. Your code will keep generating moves until the warrior exits at the Exit square. Once the warrior exits, your program will store the updated board information to a new file ResultBoard.dat as single-space separated data. The program will also display the total number of valid moves, the total time elapsed in milliseconds since the first move until the warrior exited the board, the final score of the warrior and the formatted board information (right aligned columns with total of 5 spaces).

Output Format:

• Each column in the final board display must be of total width of 5 spaces
• Data in each column must be right aligned

Enter the board data file path: C:board.dat //Repeat prompt until valid file OR show error and exit.

Type "Start" to start the game or "Exit" to exit the game: exit //Your program must exit

Enter the board file path: C:board.dat

Type "Start" to start the game or "Exit" to exit the game: start //You may display the moves and the running score after each move but it is not required

The warrior made 270 valid moves in 503 milliseconds. The final score is 175 points.



    #    #    #    #    #

    #    #    #    0    #

    #    #    #    #    #

    #   -3    #    #   -4

    #    #    #    #    #



Press any key to exit!

Program Structure: Your code should be modular and easy to understand. In addition to the main method, the following methods are required to be in your code. These methods will be used by the unit testing to test the accuracy of your code.

public static String[][] ReadBoardFromFile(String fileName, Position startPosition, Position exitPosition)

public static boolean WriteBoardToFile(String fileName, String[][] boardArray)

public static int GenerateDirection()

public static boolean MoveWarrior(int direction, String[][] boardArray, Position currentPosition)

public static int CalculateWarriorScore(int currentScore, Position currentPosition, String[][] boardArray)

public static String DisplayResults(int currentScore, int numberOfMoves, int timeElapsed, String[][] boardArray)

Program Flow:

• Program starts in main() method
• Prompt user for Board.dat file path
• Read board from file
• Generate a direction
• Move the warrior
• Calculate new score
• Check conditions and clear square if needed
• Repeat until the warrior is at the exit square
• Display the results
• Prompt user to exit game

Board.dat file format:

• The data in the file will be separated by one space
• Assume that all data in the file is valid
• Clear and Start squares (no obstacles) will be marked with # in the file
• The first line of the file contains the dimensions of the board (rows and columns) e.g. 3 7
• The second line contains the Start square indexes (rowIndex, columnIndex)
• The third line contains the Exit square indexes (rowIndex, columnIndex)
• The rest of the lines represent the contents, including obstacles, of a row on the board
• Example of a Board size 5×5 data file:

5 5

2 2

4 3

# -5 # # #

# # # 0 #

# # # # #

# -3 # # -4

-10 # # # #

**ResultBoard.dat file format: **

• Data must be separated by a single space

# # # # #

# # # 0 #

# # # # #

# -3 # # -4

# # # # #

Grading:

• Coding standards, style and comments (10 Points)
• Unit testing methods x6, one for each of the methods mentioned above (10 Points)
• ReadBoardFromFile (10 Points)
• WriteBoardToFile (10 Points)
• GenerateDirection (10 Points)
• MoveWarrior (20 Points)
• CalculateWarriorScore (20 Points)
• DisplayResults (10 Points)

Unit Test

package ObstaclesWarrior;

import static org.junit.Assert.assertArrayEquals;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertTrue;

import java.io.File;

import java.io.PrintWriter;

import org.junit.Test;

/**

* Unit test

*/

public class MainTest {

@Test

public void ReadBoardFromFileTest()

{

final String FILE_NAME = “Board.dat”;

//Either dynamically create the Board.dat file or assume it already exists

/*File file = new File(FILE_NAME);

PrintWriter printToFile = new PrintWriter(file);

printToFile.println(“4 4”);

printToFile.println(“0 2”);

printToFile.println(“2 2”);

printToFile.println(“0 # # #”);

printToFile.println(“# -3 # -5”);

printToFile.println(“# # # #”);

printToFile.println(“# # -1 #”);

printToFile.close();

*/

//Create start and exit positions to pass to the method.

//These objects will be set with actual values from the

//board file by your code inside the ReadBoardFromFile() method

Position actualStartPosition = new Position(0, 0);

Position actualExitPosition = new Position(0, 0);

//These are the expected values for the start and exit postions

Position expectedStartPosition = new Position(0, 2);

Position expectedExitPosition = new Position(2, 2);

//Create the expected array with the data

String[][] expectedBoardArray = {

{“0”, “#”, “#”, “#” },

{“#”, “-3”, “#”, “-5” },

{“#”, “#”, “#”, “#” },

{“#”, “#”, “-1”, “#” },

};

//Invoke the ReadBoardFromFile() method and capture the returned array

String[][] actualBoardArray = Main.ReadBoardFromFile( FILE_NAME,

actualStartPosition,

actualExitPosition);

//Check if the start and exit positions match   

if((expectedStartPosition.getX() != actualStartPosition.getX())||

(expectedStartPosition.getY() != actualStartPosition.getY()))

{

assertTrue(“Start position does not match”, false);

}

if((expectedExitPosition.getX() != actualExitPosition.getX())||

(expectedExitPosition.getY() != actualExitPosition.getY()))

{

assertEquals(“Exit position does not match”,false);

}

//Compare the actualBoardArray with the testBoardArray.

//Size and data must match.

//Make sure the number of rows match

assertArrayEquals(“Board array read from file does not match expected array”,

expectedBoardArray,

actualBoardArray );

}

@Test

public void WriteBoardToFileTest()

{

}

@Test

public void GenerateDirectionTest()

{

}

@Test

public void MoveWarriorTest()

{

}

@Test

public void CalculateWarriorScoreTest()

{

}

@Test

public void DisplayResultsTest()

{

}   

}

Main.java

package ObstaclesWarrior;

/**

* ObstaclesWarrior

*

*/

public class Main

{

public static void main( String[] args )

{

}

public static String[][] ReadBoardFromFile(String fileName,

Position startPosition,

Position exitPosition)

{

//This code was added just to enable you to run the provided unit test.

//Replace this code with your own code.

String[][] gameBoard = {

{“0”, “#”, “#”, “#”},

{“#”, “-3”, “#”, “-5”},

{“#”, “#”, “#”, “#”},

{“#”, “#”, “-1”, “#”},

};

startPosition.setX(0);

startPosition.setY(2);

exitPosition.setX(2);

exitPosition.setY(2);

return gameBoard;

}

public static boolean WriteBoardToFile(String fileName,

String[][] boardArray)

{

return true;

}

public static int GenerateDirection()

{

return 0;

}

public static Boolean MoveWarrior(int direction,

String[][] boardArray,

Position currentPosition)

{

return true;

}

public static int CalculateWarriorScore(int currentScore,

Position currentPosition,

String[][] boardArray)

{

return 0;

}

public static String DisplayResults(int currentScore,

int numberOfMoves,

int timeElapsed,

String[][] boardArray )

{

return “”;

}

}

Position.java

package ObstaclesWarrior;

/**

* Position

*/

public class Position {

private int x;

private int y;

public Position(int xValue, int yValue) {

x = xValue;

y = yValue;

}

public int getX() {

return x;

}

public void setX(int x) {

this.x = x;

}

public int getY() {

return y;

}

public void setY(int y) {

this.y = y;

}

}

1. Describe the key architecture points in a high capacity enterprise solution processing over 100/000 TPS?

 2. What are the key breakage points in the architecture? How would you improve upon them?

Follow the doc for questions and concepts on which the questions must be answered 

34) What JavaScript object and method is used to write HTML to the web page?

a. document.println()

b. document.writeln()

c. window.write()

d. window.print()

35) How many DOM nodes are created from the paragraph?

Feed the dog.

a. None

b. One for the p element

c. One for the p element and one for the paragraph text

d. One for the p element, one for the paragraph text, and one for the whitespace within the paragraph text

36) Which statement changes the Pinterest link to a YouTube link?

 

 Pinterest
 

a. para.href = “https://www.youtube.com/”;

b. link.href = “https://www.youtube.com/”;

c. para.innerHTML = “https://www.youtube.com/”;

d. link.innerHTML = “https://www.youtube.com/”;

37) What is the preferred way to register an event handler that allows multiple handlers for the same event?

a. myButton.addEventListener(“click”, clickHandler);

b. myButton.onclick = clickHandler;

c. Click Me

d. Click Me

38) An event that occurs when someone enters their name in an input field is a(n) _____ event.

a. click

b. load

c. input

d. submit

39) On a given keypress event, the event object’s _____ property is used to access the object where the keypress event occurred.

a. event

b. click

c. target

d. element

40) The _____ is required to cancel the interval:

let timerId = setInterval(repeatMe, 1000);

a. clearInterval(repeatMe)

b. clearInterval(timerId)

c. stopInterval(timerId)

d. setTimeout(timerId)

41) What code would be used to call a function called repeat every 3 seconds?

a. setTimeout(repeat, 3)

b. setInterval(repeat, 3000);

c. setInterval(repeat, 3);

d. setTimeout(repeat, 3000)

42) How many times isshowMe()called when the following code is executed?

let timerId = setTimeout(showMe, 3000);
 

function showMe() {
 let div1 = document.getElementById(“div1”);
 div1.style.display = “block”;
 alert(“called”);
 let timerId = setTimeout(showMe, 3000);
}

a. indefinitely

b. 1

c. 2

d. 3

43) In the following JSON, the datatype associated with friends is _____.

{“friends”: [{ “name”:”Bobby”}, {“name”:”Celia”},{“name”:”Judy”}]}

a. string

b. object

c. array

d. char

44) How is the age field accessed after the following is executed:

let obj = JSON.parse(‘{“name”:”Bobby”, “age”:20}’);

a. this.age

b. age

c. obj.age

d. obj.name.age

45) What doesstringify()return?

JSON.stringify({“friends”: [{ “name”:”Bobby”}, {“name”:”Celia”},{“name”:”Judy”}]});

a. single string

b. string array

c. JSON object

d. undefined

46) A(n) _____ allows older browsers to function with newer features by providing missing functionality.

a. trifill

b. backfill

c. polyfill

d. altfill

47) A polyfill is engineered to:

a. Use JavaScript to implement a feature whenever possible

b. Replace HTML to implement a feature after checking if a feature exists

c. Use JavaScript to implement a feature after checking if a feature exists

d. Use Ajax to implement a feature whenever possible

48) The _____ website shows what features are supported by major browsers and frequency of use.

a. W3C

b. Tiobe

c. CanIUse

d. W3Schools

49) Which strings match the regex?

let words = [“dapper”, “paper”, “cat”, “flack”];
let re = /pa|ac/;

a. dapper, paper

b. paper, flack

c. flack, cat

d. dapper, flack

50) Which regular expression matches only the words burp, dirt, and right?

let randomWords = [“burp”, “try”, “dirt”, “right”];

a. let re = /[a-i]/

b. let re = /[e-i]/

c. let re = /[i-u]/

d. let re = /[r]/

51) Which string inwordNumsmatches the regex?

let wordNums = [“blahblah!!”, “yea”, “N()P3”, “H!”];
let re = /waS!/;

a. blahblah!!

b. yea

c. N()P3

d. H!

52) Which line of code instantiates Adele and the album 21?

function PlayList(artist, album) {
 this.artist = artist;
 this.album = album;
};

a. Adele.PlayList = (“Adele”, “21”);

b. Adele = new PlayList(“Adele”, “21”);

c. Adele new PlayList = (“Adele”, “21”);

d. Adele = PlayList (“Adele”, “21”);

53) Which line of code creates a prototype method for PlayList called showCollection?

function PlayList(artist, album) {
 this.artist = artist;
 this.album = album;
};

a. PlayList.prototype.showCollection = function() {
 console.log(“My playlist so far: ” + this.artist + ” : ” + this.album);
};

b. prototype.PlayList.showCollection = function() {
 console.log(“My playlist so far: ” + this.artist + ” : ” + this.album);
};

c. this.prototype.showCollection = function() {
 console.log(“My playlist so far: ” + this.artist + ” : ” + this.album);
};

d. PlayList.showCollection.prototype = function() {
 console.log(“My playlist so far: ” + this.artist + ” : ” + this.album);
};

54) In strict mode, _____ variables must be declared.

a. most

b. some

c. all

d. no

55) Which function is in strict mode?

a. function abc123() {
 “restrict”;
}

b. function abc123() {
 “use strict”;
}

c. function abc123() {
 “strict”;
}

d. function abc123() {
 “strict mode”;
}

56) http://www.google.com and https://www.google.com are _____.

a. different origins

b. the same

c. data sharers

d. web storage objects

57) Which line of code deletes all data fromlocalStorage?

a. localStorage.clear();

b. localStorage.delete();

c. localStorage.remove();

d. localStorage.clearAll();

58) What does this line of code do?

localStorage.removeItem(“name”);

a. Removes the “name” key and associated value from storage

b. Removes the “name” key from storage

c. Removes all values from storage

d. Deletes a local variable named “name”

Subject : COmputer forensics and investigations