Java

Algorithmic Performance as you are aware, consists (mainly) of 2 dimensions: Time and Space. From a technical perspective, discuss the following:

• Regarding runtime, discuss algorithmic performance with respect to its runtime performance.  As you develop an algorithm, what must you also consider in terms of some of the trade-offs?

• How would you go about estimating the time required for an algorithm’s efficiency (i.e. time to complete in terms of its potential complexity)? What techniques can you use? Give an example of how to measure it.  

Question 1 (1 point)

4-3 (True/False) There are major differences between firewalls for wired ad wireless uses.

Question 1 options:

Question 2 (1 point)

4-14 Which of the following terms best describes the following diagram?

Question 2 options:

Question 3 (1 point)

4-13 Which of the following is the BEST definition of dual-homed?

Question 3 options:

Question 4 (1 point)

4-10 Which of the following is the name for a lower-end (small business grade) firewall appliance that is capable of packet filtering, content filtering, intrusion detection, proxy, and application layer filtering?

Question 4 options:

Question 5 (1 point)

4-11 Which of the following is most often used for protecting a single computer?

Question 5 options:

Question 6 (1 point)

4-7 Which of the following were generation one firewalls capable of?

Question 6 options:

Question 7 (1 point)

4-6 the earliest firewalls were only capable of which of the following kinds of filtering?

Question 7 options:

Question 8 (1 point)

4-1 Which of the following were firewalls originally conceived to perform?

Question 8 options:

Question 9 (1 point)

4-8 Which of the following is the word describing a firewall that is aware of a packet's place in an established and ongoing conversations

Question 9 options:

Question 10 (1 point)

4-20 Which of the following refers to a software firewall places on a dedicated server to create an internal hardware firewall?

Question 10 options:

1. A technician, Joe, needs to troubleshoot a recently installed NIC. The PC has limited Internet connection although all other nodes on same network have Internet connections. Describe p practically in in clear steps four Methods Joe must adopt to troubleshoot and resolve the issue.

2. A company has implemented the capability to send all log files to a central location by utilizing an encrypted channel. The log files are sent to this location in order to be reviewed. A recent exploit has caused the company’s encryption to become unsecure.

Describe fully three implementations the company can adopt to resolve this.

(9marks)

3. A system administrator has been tasked to ensure that the software team is not affecting the production software when developing enhancements. The software that is being updated is on a very short SDLC and enhancements must be developed rapidly. These enhancements must be approved before being deployed. Discuss four implementations that will mitigate production outages before the enhancements are deployed.

Why do you want to join COOP and why are you interested in participating in the data analytics program?

Make CSS code for ping flood attack of the United States

** zoom in and out of the map, background color, states listed, scrollbar, title Ping Flood attack in US Map, etc.

Design whatever you would want to

programming language can be any

C++ Project

The following is a simple implementation of the circular queue

Important: for this project, you must complete the work based on this initial code.

1. Fix the full() method.

2. Fix the empty() method.

3. Place "X" in the front position using a statement in the constructor.

4. Adjust the DEQ() method so that the front position in the array would always have "X" in it and

the previous X should be blanked out.

5. Write the code for displayArray() method in a such a way that it should display the contents of the

Queue as shown in the array, from location 0 up to and including the last position.

6. Write the code for displayLine() method in a such a way that it should display the contents of the

Queue, from the rear position to the front position as in a waiting line.

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

#include

using namespace std;

class Queue{

private:

int front;

int rear;

int capacity;

string *array;

public:

Queue(int capacity){

// Place "X" in the front position

front = capacity;

rear = capacity;

(*this).capacity = capacity;

array = new string[capacity + 1];

}

/*** You need to fix the method full, so that it would only return

* true if front and rear have the same value.

*/

bool full(){

return false;

}

void ENQ(string element){

if (!full()){

if (rear == 0){

rear = capacity;

}

else{

rear--;

}

array[rear] = element;

}

else{

cout<<"Queue is full "<

}

}

/**

* You need to fix the method empty, so that it would only return

* true if the next rear position is the same as the front position.

*/

bool empty(){

return false;

}

/**

* Adjust DEQ so that, the front position in the array would

* always have "X" in it and the previous X should be blanked out.

*/

string DEQ(){

if (!empty()){

if (front == 0){

front = capacity;

}

else{

front--;

}

return array[front];

}

else{

cout<<"Queue is empty\n";

return "Nothing";

}

}

/**

* Write the code for displayArray() method in a such a way that it should display the contents

* of the Queue as shown in the array from location 0 up to and including the last position.

void displayArray(){

}

/**

* Write the code for displayLine() method in a such a way that it should display the contents of the

* Queue from the rear position to the front position as in a waiting line.

*/

void displayLine(){

}

};

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Main Code

int main() {

cout<<"\nTesting Q1 ...\n";

Queue Q1(5);

//displayArray(); test, once it is done

Q1.ENQ("B");

//displayArray(); test, once it is done

Q1.ENQ("D");

//displayArray(); test, once it is done

Q1.ENQ("C");

//displayArray(); test, once it is done

cout<

Q1.ENQ("P");

//displayArray(); test, once it is done

Q1.ENQ("H");

//displayArray(); test, once it is done

Q1.ENQ("N");

//Q1.displayArray(); test, once it is done

//Test if your full method works since M should be rejected

//Q1.ENQ("M")

cout<

//Q1.displayArray(); test, once it is done

cout<

//Q1.displayArray(); test, once it is done

//Q1.displayArray(); test, once it is done

cout<<"\nTesting Q2 ...\n";

Queue Q2(6);

Q2.ENQ("H");

Q2.ENQ("P");

Q2.ENQ("M");

Q2.ENQ("W");

Q2.ENQ("Z");

Q2.ENQ("N");

//Test if your full method works since Z should be rejected

//Q2.ENQ("Z");

//Q2.displayArray(); test once it is done

for (int i = 1; i<=6; i++){

cout<

}

//Test if your full method works since M should be rejected

cout<

//Q2.displayArray(); test, once it is done

//Q2.displayArray(); test, once it is done

}

CAN YOU CORRECT THIS CODE PLS.

Scanner in = new Scanner (System.in);
  
// EXAMPLE 1
System.out.println("****************** EXAMPLE 1 *****************" );
int x = 4, y = 9;
int a = 99, b = -22;

if (x > y)
System.out.println("x > y");
if (x < y)
System.out.println("x < y");
if (x >= y)
System.out.println("x >= y");
if (a <= 10023)
System.out.println("a <= 10023");
if (b == y)
System.out.println("b == y");
if (b == 5)
System.out.println("b == 5");
if (x != 4)
System.out.println("x != 4");
System.out.println();
  
// EXAMPLE 2
System.out.println("****************** EXAMPLE 2 *****************" );
boolean even = false;
x = 6;

if (x % 2 == 0)
even = true;

if (even)
System.out.println("x is even.");
if (even == true)
System.out.println("x is even.");
if (even == false)
System.out.println("x is not even.");

if (true)
System.out.println("This statement WILL output.");
if (false)
System.out.println("This statement will NOT output.");
System.out.println();
  
// EXAMPLE 3
System.out.println("****************** EXAMPLE 3 *****************" );
System.out.print("Select an option:\n" +
" 1. Have Time\n 2. Work Hard\n" +
" 3. Socialize\n\n> ");

int choice = in.nextInt(); // user enters 2

if (choice == 1)
System.out.println("Here's time!");
else if (choice == 2)
System.out.println("Keep it up!");
else if (choice == 3)
System.out.println("Nice weather we're having!");
else
System.out.println("Well, you can't do all three.");
System.out.println();
  
  
// EXAMPLE 4
System.out.println("****************** EXAMPLE 4 *****************" );
int grade = 90;
if (grade >= 90)
System.out.println("You got a A!");
if (grade >= 80)
System.out.println("You got a B!");
if (grade >= 70)
System.out.println("You got a C!");
System.out.println();

// EXAMPLE 5
System.out.println("****************** EXAMPLE 5 *****************" );
a = 4;

if ( a== 4 ) {
System.out.println ( "a is equal to 4!" );
}
System.out.println();

// EXAMPLE 6
System.out.println("******************** EXAMPLE 6 *****************" );
b = 483;

if ( b == 4 )   
System.out.println ( "b is equal to 4!" );
}

// EXAMPLE 7
System.out.println("********************* EXAMPLE 7 *****************" );
a = 483;

if( a == 4 ) {
System.out.println( "a is equal to 4!" );
System.out.println( "That's right -a is equal to 4!" );
if (a == 483 );
System.out.println ( "a is equal to 483!" );
System.out.println ( "That's right -a is equal to 483!" );
System.out.println();
}

// EXAMPLE 8
System.out.println("********************* EXAMPLE 8 *****************" );
b = 483;

if( b == 4 );
{
System.out.println ( "b is equal to 4!" );
}
System.out.println ( "That's right -b is equal to 4!" );
else if ( b == 483 )
{
System.out.println ( "b is equal to 483!" );
}
System.out.println ( "That's right -b is equal to 483!" );
System.out.println();

// EXAMPLE 9
System.out.println("********************* EXAMPLE 9 *****************" );
int number1, number2;
System.out.print ( "Enter first integer: ");
number1 = in.nextInt();
System.out.print ( "Enter second integer: ");
number2 = in.nextInt();

if (number1 == number2)
System.out.println( number1 + " == " + number2 );
if (number1 != number2)
SSystem.out.println( number1 + " != " + number2 );
if (number1 < number2)
System.out.println( number1 + " < " + number2 );
if (number1 > number2)
System.out.println( number1 + " > " + number2 );
if (number1 <= number2)
System.out.println( number1 + " <= " + number2 );
if (number1 >= number2)
System.out.println( number1 + " >= " + number2 );
System.out.println();

// EXAMPLE 10
System.out.println("********************* EXAMPLE 10 ****************" );
grade = 65
String message;
if ( grade >= 60 ) {
message = "You passed";
}
else
message = "You failed";
System.out.println( message );
System.out.println();

}
}

In Java...

Create a class named _MyArrays which has a main( ) and other static methods.

Part I (30%) [Main method] In the main() - Request the number of reviewers (r) and movies (m) - Declare a r x m two-dimensional array of integers - Allow the user to enter distinct values , row by row to fill the two dimensional array - Display the two-dimensional array using a _displayArray method. - Using the _printHighestLowestMovieRating method print the highest and lowest rating for each movie. - Using the _printAverageReviewerRating method print the average reviewer rating for each reviewer. - Test your program with the information in the example on the first page.

Part II (20%) [_displayArray] The _displayArray method must have the following specifications and functionality: o Only Takes the two-dimensional array as a formal parameter/argument o Displays the array data as a matrix (i.e. Rows and Columns) ( you know how to find the row and column without (r ) and (m) ) o Does not return any value.

Part III (20%) [_printHighestLowestReviewerRating] The _ printHighestLowestReviewerRating method must have the following specification and functionality: o Takes the two-dimensional array as a formal parameter/argument as well as r and m o Displays each reviewer code and the highest and lowest rating. o Sample output “Highest rating for review # 1 is 6 and Lowest is 2”

Part IV (20%) [_ printAverageMovieRating] The _ printAverageMovieRating method must have the following specification and functionality: o Takes the two-dimensional array as a formal parameter/argument as well as r and m o Displays each Movie code and the average Movie rating. o Sample output : “ The average rating of the movie #4 is 6.67“

Please provide a very detail oriented explanation regarding troubleshooting techniques when technologies are not used correctly. Please ensure original work and that the response is between 250-550 words.

for java

Welcome to a classic homework problem! Create a public class called Last8. You should exposed two public methods: add: adds a value, does not return a value last: returns an array containing the last 8 values that were added, in any order. You do not need a constructor, but you can add an empty one if you need. Until 8 values have been added you should return 0s in their place. For example, here's how an instance of Last8 should work:

Write a function called checkFormat that will check the format of a given username to make sure it follows some formatting restrictions. This function should take one input parameter – a string that contains the username to be checked. The username should look like [email protected] where cccc can be any 4 lowercase letters. The following conditions must be satisfied to be a valid username:

1. The length should be 19 characters

2. The 5th character should be “@”

3. The username should end with “abcdefghij.edu”

4. The username should start with 4 lowercase letters

python, use boolean function

1. Write a program that reads a positive integer n , prints all sums from 1 to any integer m 1≤m≤n . For example, if n=100, the output of your program should be

The sum of positive integers from 1 to 1 is 1;

      The sum of positive integers from 1 to 2 is 3;

      The sum of positive integers from 1 to 3 is 6;

      The sum of positive integers from 1 to 4 is 10;

      The sum of positive integers from 1 to 5 is 15;

                ⁞

      The sum of positive integers from 1 to 100 is 5050.

(The program should include a main method, and no tester class is needed)


2. You need to control the number of people who can be in an oyster bar at the same time. Groups of people can always leave the bar, but a group cannot enter the bar if they would make the number of people in the bar exceed the maximum of 100 occupants. Write a program that reads the sizes of the groups that arrive or depart. Use negative numbers for departures. After each input, display the current number of occupants. As soon as the bar holds the maximum number of people, report that the bar is full and exit the program.

Could you give some sample Java code of creating a program where users are prompt to determine how many exams they have taken then it is prompt that they have to enter their test scores and gives the sum of all their test scores? You should have to use looping