The Sum and The Average

In C++,

Write a program that reads in 10 integer numbers. Your program should do the following things:

Use a Do statement

Determine the number positive or negative

Count the numbers of positive numbers, and negative

Outputs the sum of:

all the numbers greater than zero

all the numbers less than zero (which will be a negative number or zero)

all the numbers

Calculate the average of all the numbers.

The user enters the ten numbers just once each and the user can enter them in any order. Your program should not ask the user to enter the positive numbers and the negative numbers separately

Try to make it as simple as you can and explain as much as it needed.

1. Define Integrity and Nonrepudiation? (2 points)

Ans:

2. What are the differences between Stream Cipher and Block Cipher? (2 points)

Ans:

3. What is Access Control and why is it important? (2 points)

Ans:

4. Message Authentication Code ensures authentication or integrity or both? Justify and explain your answer. (3 points)

Ans:

5. What are the weaknesses of DES? Why triple DES is better than Double DES? (3 points)

Ans:

Try to make it as simple as you can and explain as much as it needed.

1. What are the differences between symmetric encryption and asymmetric encryption? (1 point)

Ans:

2. What is pseudo random numbers? (1 point)

Ans:

3. What is Moore’s Law? (1 point)

Ans:

4. What are four different block cipher modes? (1 point)

Ans:

5. What is one-time pad? (1 point)

Ans:

package edu.depaul.triangle;

import java.util.Scanner;

/**

* A class to classify a set of side lengths as one of the 3 types

* of triangle: equilateral, isosceles, or scalene.

* If classification is not possible it emits an error message

*/

public class Triangle {

/**

* Define as private so that it is not a valid

* choice.

*/

private Triangle() {}

public Triangle(String[] args) {

//

// TODO: keep this simple. Constructors should not do a lot of work

//

}

// TODO: Add methods to validate input, and classify the triangle (if possible) here

private static String[] getArgs(Scanner s) {

System.out.println("press Enter by itself to quit");

System.out.println("enter 3 integers separated by space.");

String args = s.nextLine();

return args.split(" ");

}

public static void main(String[] a) {

try (Scanner scanner = new Scanner(System.in)) {

String[] args = getArgs(scanner);

// Loop until the user enters an empty line

while(args[0].length() !=0) {

//

// TODO: create a new Triangle here and call it

//

args = getArgs(scanner);

}

System.out.println("Done");

}

}

Write a Java program to determine types of triangles. The program reads 3 values from the standard input. The values represent the lengths of the sides of a triangle. The program prints a message to the standard output that indicates whether the triangle represented by the input is • an equilateral (all 3 sides are equal), or • an isosceles (exactly 2 of the 3 sides are equal), or • a scalene (all 3 sides are of different lengths) Expected behavior: a. The user enters 3 values at a prompt and presses return b. The values must be converted to integers. If they cannot be converted, the system displays an error. c. The valid values for these integers are values from 1 to and including 300. Any other integers should cause an error to be shown to the user. d. The values are delimited with spaces e. The system evaluates the results, shows either a triangle type or an error, then prompts for input again. f. When the user enters a blank line followed by return, the program ends. g. An error is shown whenever the user’s input cannot be interpreted as a triangle or when the handling of the input results in exception.

Write a C++ program to ask the user to enter the shape type: square, sphere or circle and the appropriate dimensions of the shape.. The program should output the following information about the shape:

a.for a square. it output the area and perimeter.

b. for a sphere, it outputs the area.

c. fir a circle, it outputs the volume.

if the user input anything else, your program should output: "the program does not recognize this shape". Use const whenever it is appropriate (use the nested if)

area of sphere is 4*PI*r^2

area of circle is Pi*r^2 (Pi=3.1416)

Write a C program to create a series of processes, as shown below in the diagram.

P |------ ---- > c1 |------------>c2

                             |------- ------>c3 ---------->c4

In other words, the parent process p creates process c1, c1 creates c2 and c3, and c3 creates c4.

A sample run of the program shows

Your program should output something similar to what is shown above. You could optionally use wait/waitpid/sleep/exit in your program.

Comment your code to show where you created p, c1, c2, c3, c4, etc.

1.For Python Which statement(s) are true regarding private class variables?

private variables can be accessible inside the class.

private variables can be accessible outside the class.

private variable values can be changed directly outside of the class

private variables can be changed outside the class through set methods.

2.

In the following code,

def A:
def __init__(self):
     __a = 1
     self.__b = 1
     self.c = 1
     __d__ = 1

# Other methods omitted

Which of the following is a private data field?

Group of answer choices

__a

__b

c

__d__

3.

Analyze the following code and choose the more accurate statement.

class A:
     def __init__(self, s):
         self.s = s

     def print(self):
         print(s)

a = A("Welcome")
a.print()

Group of answer choices

The program has an error because class A does not have a constructor.

The program has an error because class A should have a print method with signature print(self, s).

The program has an error because class A should have a print method with signature print(s).

The program would run if you change print(s) to print(self.s).

4.

Which of the following statement is most accurate?

Group of answer choices

A reference variable is an object.

An object is a reference type variable

An object may contain other objects.

An object may contain the references of other objects.

5.

Which special method returns a string representation of the object?

Group of answer choices

__init__ method

print method

__str__ method

constructor

6.

Class design should include ________

Group of answer choices

fields

constructor

accessor and mutator methods

other useful methods

All of the above

7.

What is max("Programming is fun")?

Group of answer choices

P

r

blank space character

u

8.

What is "Programming is fun"[1:3]?

Group of answer choices

Pr

Pro

ro

rog

Replace <missing value> and <missing code> with your answers. Your code should compute the factorial of n. For example, if n = 5, your code should compute the following 5 * 4 * 3 * 2 * 1 (which is 120).

public static void main(String[] args)
{

Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();

int factorial = <missing value>;

<missing code>

System.out.println("factorial = " + factorial);

What is the minimum and maximum number of zeros in a 4-bit string? Use roster notation and find the range of f. (The first elements in the range is f(0,0,0,0) = 0)

The measured values of the eight performance metrics listed in Example 10.2 for a system are 70, 10, 60, 20, 80, 30, 50, and 20%. Draw the Kiviat graph and compute its figure of merit. I just need the figure of merit. I have done the rest.

HOW TO:

1. Write the SQL statement to show workers with names that have the letter ? before the last character.
2. Write the SQL statement to show all staff where the 2nd letter of their last names is ′?′
3. Write the SQL statement to show all staff where the 1stletter of their first names is ′?′ and 3rd letter ′ℎ'

DROP TABLE IF EXISTS staff;
CREATE TABLE staff (
staffNo VARCHAR(4) UNIQUE,
fName VARCHAR(16),
lName VARCHAR(16),
position VARCHAR(16),
sex VARCHAR(1),
dob DATETIME,
salary DOUBLE DEFAULT 0,
branchNo VARCHAR(4),
CONSTRAINT pk_staff PRIMARY KEY (staffNo)
);
INSERT INTO staff (staffNo,fName,lName,position,sex,DOB,salary,branchNo)
VALUES
('SL21','John','White','Manager','M','1945-10-01',30000,'B005'),
('SG37','Ann','Beech','Assistant','F','1960-11-10',12000,'B003'),
('SG14','David','Ford','Supervisor','M','1958-03-24',18000,'B003'),
('SA9','Mary','Howe','Assistant','F','1970-02-19',9000,'B007'),
('SGS','Susan','Brand','Manager','F','1940-06-03',24000,'B003'),
('SL41','Julie','Lee','Assistant','F','1965-06-13',9000,'B005'),
('SB0', NULL, 'LN0', 'Manager', 'M', '2000-01-01 00:00:00', 9999,
'B000'),
('SB1', 'FN1', NULL, 'Manager', 'M', NULL, 9999, 'B000'),
('SB2', 'FN2', 'LN2', NULL, NULL, NULL, 9999, 'B000'),
('SB3', 'FN3', 'LN3', NULL, NULL, NULL, 9999, NULL),
('SB4', 'FN4', NULL, 'Manager', NULL, NULL, 9999, NULL),
('SB5', 'FN5', NULL, 'Supervisor', NULL, NULL, NULL, 'B001'),
('SB6', 'FN6', NULL, 'Assistant', NULL, NULL, 9999, 'B002'),
('SB7', 'FN7', NULL, 'Manager', NULL, NULL, NULL, 'B003'),
('SB8', 'FN8', NULL, 'Manager', NULL, NULL, 9999, 'B005'),
('SB9', 'FN9', NULL, 'Assistant', NULL, NULL, NULL, NULL);

1. Which of the following statements are true of snort? (select all that apply)

Snort rules are free through community distribution

Snort rules can be written by users/administrators.

Snort rules allow the software to understand all unwanted traffic

Snort rules are free through subscription

Working code with screenshots of event handling in Python based on 3 events of your choosing

Assume that Employee class has method boolean isHighEarner() that returns true if employee's salary is above average and false otherwise. Write an iterative method highEarners that returns the ArrayList<Employee> of all high earners in the given list.

Define the URL and why analyst should care about its importance.

Explain the URL Parameters.

Explain cookies and why these matter.