Which of the following could an attacker use to overwrite instruction pointers in order to execute malicious code?
a) Memory leak
b) SQL injection
c) Resource exhaustion
d) Buffer overflow

Answer:

tiddies

Explanation:

sukk

Answer:

done

Explanation:

int a[][] = new int[4][4];

Random r = new Random();

for(int i=0;i<4;i++)

for(int j=0;j<4;j++)

{

a[i][j]=r.nextInt()%100;

}

int sorted1Darray[] = new int [16];

int k=0;

for(int i=0;i<4;i++)

for(int j=0;j<4;j++)

sorted1Darray[k++]=a[i][j];

//now sorting using bubble sort

for(int i=0;i<16;i++)

for(int j=0;j<16;j++)

if(sorted1Darray[i]<sorted1Darray[j])

{

int t= sorted1Darray[i];

sorted1Darray[i]=sorted1Darray[j];

sorted1Darray[j]=t;

}

System.out.println("Sorted array:");

for(int i=0;i<16;i++)

System.out.print(sorted1Darray[i]+" ");

System.out.println();

Answer:

D. 10, 5.

Explanation:

Answer:

length = float(input("Enter the length: "))

height = float(input("Enter the height: "))

width = float(input("Enter the width: "))

area = 2 * (length * height + height * width + width * length)

circumference = 4 * (length + height + width)

print("The area is: " + str(area))

print("The circumference is: " + str(circumference))

Explanation:

*The code is in Python.

Ask the user to enter the length, height and width

Calculate the area and circumference using the formulas and print them

Answer:

I am writing a Python function:

def angry_file_finder(filename):  #function definition, this function takes file name as parameter

   with open(filename, "r") as read:  #open() method is used to open the file in read mode using object read

       lines = read.readlines()  #read lines return a list of all lines in the file

       for line in lines:  #loops through each line of the file

           if not '!' in line:   #if the line does not contains exclamation mark

               return False  # returns False if a line contains no !

   return True     # returns true if the line contains exclamation mark

print(angry_file_finder("file.txt")) call angry_file_finder method by passing a text file name to it

Explanation:

The method angry_file_finder method takes a file name as parameter. Opens that file in read mode using open() method with "r". Then it reads all the lines of the file using readline() method. The for loop iterates through these lines and check if "!" is present in the lines or not. If a line in the text file contains "!" character then function returns true else returns false.

There is a better way to write this method without using readlines() method.

def angry_file_finder(filename):

   with open(filename, "r") as file:        

       for line in file:

           if '!' not in line:  

               return False

   return True      

print(angry_file_finder("file.txt"))

Above method opens the file in read mode and just uses a for loop to iterate through each line of the file to check for ! character. The if condition in the for loop checks if ! is not present in a line of the text file. If it is not present in the line then function returns False else it returns True. This is a more efficient way to find a character in a file.

Answer:

a) Penetration test

Explanation:

A penetration test, often referred to as a pen test, is part of important process in the development of internet facing service. It is a process of determining if vulnerabilities are actually exploitable in a particular environment.

In other words, it is a process that involves a simulated cyber attack against computer system to check for exploitable vulnerabilities or attempts to actively exploit weaknesses in an environment.

Hence, when discussing the behavior of vulnerability assessments the choice that will exploit a weakness is PENETRATION TEST.

When discussing the behavior of vulnerability assessments, the choice which will exploit a weakness is: A) Penetration test.

Cyber security can be defined as a preventive practice to systematically protect computers, software applications (programs), networks, electronic devices, servers and user data from potential attack, damage, theft or an unauthorized access, especially through the use of technologies, frameworks, integrity principles, processes, penetration test and network engineers.

A vulnerability can be defined as a weakness in an automated internal control system and security procedures, which may be exploited by an attacker (hacker) to gain unauthorized access to the data stored on a computer system or disrupt the information system.

Basically, vulnerability assessments can be used in the following ways:

A penetration test is also referred to as pen test or ethical hacking and it can be defined as a cybersecurity technique that simulates a cyber attack against a user's computer system, so as to identify, test an check for exploitable vulnerabilities in a web software, network, etc.

This ultimately implies that, a penetration test avails an end user the ability to exploit a weakness and potential security threats during vulnerability assessments.

Answer:

The description including its scenario is listed throughout the explanation section below.

Explanation:

Star topology seems to be a LAN system under which all points are connected to a single cable link location, such as with a switch as well as a hub. Put it another way, Star topology is among the most commonly used network configurations.

Throughout this configuration or setup:

Answer:

According to the principles of design, Repetition refers to the recurrence of elements of the design

One of the advantages of this is that it affords uniformity. Another is that it keeps the user of such a system familiar or with the interface of the operating system.

One major drawback of this principle especially as used in the question is that it creates a familiar route for hackers.

Another drawback is that creates what is called "repetition blindness". This normally occurs with perceptual identification tasks.

The  phenomenon may be  due to a failure in sensory analysis to process the same shape, figures or objects.

Cheers!

Answer:

Here is the sentinel-controlled while loop:

#include <iostream> //to use input output functions

using namespace std; // to identify objects like cin cout

int main(){ // start of main() function body

int test_score; // declare an integer variable for test scores

//prompts user to enter test scores and type-99 to stop entering scores

cout << "Enter the test scores (enter -99 to stop): ";

cin >> test_score; // reads test scores from user

while (test_score != -99){ // while loop keeps executing until user enters -99

cin >> test_score; } } // keeps taking and reading test scores from user

Explanation:

while loop in the above chunk of code keeps taking input scores from user until -99 is entered. Sentinel-controlled loops keep repeating until a sentinel value is entered. This sentinel value indicates the end of the data entry such as here the sentinel value is -99 which stops the while loop from iterating and taking the test score input from user.

The complete question is that the code should then report how many scores were  entered and the average of these scores. Do not count the end sentinel -99 as a score.

So the program that takes input scores and computes the number of scores entered and average of these scores is given below.

#include <iostream>  // to use input output functions

using namespace std;  // to identify objects like cin cout

int main(){  //start of main function body

double sum = 0.0;  // declares sum variable to hold the sum of test scores

int test_score,count =0;  

/* declares test_scores variable to hold the test scores entered by user and count variable to count how many test scores input by user */

cout << "Enter the test scores (or -99 to stop: ";

//prompts user to enter test scores and type-99 to stop entering scores

cin >> test_score;  // reads test scores from user

while (test_score != -99){  // while loop keeps executing until user enters -99

count++;  /* increments count variable each time a test cores is input by user to count the number of times user entered test scores */

sum = sum + test_score;  // adds the test scores

cin >> test_score;}  // reads test scores from user

if (count == 0)  // if user enters no test score displays the following message

cout << "No score entered by the user" << endl;

else  //if user enters test scores

//displays the numbers of times test scores are entered by user

cout<<"The number of test scores entered: "<<count;

/* displays average of test scores by dividing the sum of input test scores with the total number of input test scores */

cout << "\n The average of " << count << " test scores: " <<sum / count << endl;}

The program along with its output is attached.

Explanation:

A website is a group of globally accessible into linked pages which have a single domain name. A web application is a software or program is is accessible using any web browser.

Answer:

Explanation:

A website shows static or dynamic data that is predominantly sent from the server to the user only, whereas a web application serves dynamic data with full two way interaction.

Answer:

I am writing a Python program that deletes players from the file whose names whose names do not begin with a vowel which means their names begin with a consonant instead. Since the SomePlayers.txt is not provided so i am creating this file. You can simply use this program on your own file.

fileobj= open('SomePlayers.txt', 'r')  

player_names=[name.rstrip() for name in fileobj]  

fileobj.close()  

vowels = ('a', 'e', 'i', 'o', 'u','A','E','I','O','U')

player_names=[name for name in player_names  

                     if name[0] in vowels]

fileobj.close()

print(player_names)

Explanation:

I will explain the program line by line.

First SomePlayers.txt is opened in r mode which is read mode using open() method. fileobj is the name of the file object created to access or manipulate the SomePlayers.txt file. Next a for loop is used to move through each string in the text file and rstrip() method is used to remove white spaces from the text file and stores the names in player_names. Next the file is closed using close() method. Next vowels holds the list of characters which are vowels including both the upper and lower case vowels.

player_names=[name for name in player_names  

                     if name[0] in vowels]

This is the main line of the code. The for loop traverses through every name string in the text file SomePlayers.txt which was first stored in player_names when rstrip() method was used. Now the IF condition checks the first character of each name string. [0] is the index position of the first character of each players name. So the if condition checks if the first character of the name is a vowel or not. in keyword is used here to check if the vowel is included in the first character of every name in the file. This will separate all the names that begins with a vowel and stores in the list player_names. At the end the print statement print(player_names) displays all the names included in the player_names which begin with a vowel hence removing all those names do not begin with a vowel.

Answer:knowing how to build and program computers.

Explanation:

Use an AppExchange product that does fingerprint scanning with native Salesforce Identity  Confirmation

Answer:

This program is written using Python Programming Language;

Comments are not used; however, see explanation section for detailed line by line explanation

See Attachment

Program starts here

def align_right(a_string,string_length):

     if len(a_string) > string_length:

           print(a_string)

     else:

           aligned=a_string.rjust(string_length)

           print(aligned)

a_string = input("Enter a string: ")

string_length = int(input("Enter string length: "))

align_right(a_string,string_length)

Explanation:

Function align_right is declared using on line

def align_right(a_string,string_length):

This line checks if the length of the current string is greater than the input length

     if len(a_string) > string_length:

If the above condition is true, the input string is printed as inputted

           print(a_string)

If otherwise,

     else:

The string is right justified using the next line

           aligned=a_string.rjust(string_length)

The aligned string is printed using the next line

           print(aligned)

The main function starts here

This line prompts user for a string

a_string = input("Enter a string: ")

This line prompts user for total string length

string_length = int(input("Enter string length: "))

This line calls the defined function

align_right(a_string,string_length)

Answer:

Text wrap is a feature supported by many word processors that enables you to surround a picture or diagram with text. The text wraps around the graphic (picture or diagram).

Explanation:

Hope this helps :)

Answer:

Here is the JAVA program to calculate volume of cuboid:

import java.util.Scanner; // Scanner class is used to take input from user

public class CuboidVol { // class to calculate volume of cuboid

public static void main(String[] args) { // start of main() function body

Scanner input= new Scanner(System.in); //create Scanner class object

// prompts user to enter length of cuboid

System.out.println("Enter the cuboid length:");

double length=input.nextDouble(); //reads the input length value from user

// prompts user to enter width of cuboid

System.out.println("Enter the cuboid width:");

double width=input.nextDouble(); //reads the input width from user

// prompts user to enter height of cuboid

System.out.println("Enter the cuboid height:");

double height=input.nextDouble(); //reads the input height from user

/* the following formula is to calculate volume of a cuboid by multiplying its length width and height and a double type variable cuboidVolume is defined to store the value of the resultant volume to it */

double  cuboidVolume= length*width*height; //calculates cuboid volume

//displays volume of cuboid and result is displayed up to 2 decimal places

System.out.printf("Volume of the cuboid (length " + length + "/ height " + height + "/ width" +width +" is: " + "%.2f",cuboidVolume);   } }

Explanation:

The formula for the volume of a cuboid is as following:

Volume = Length × Width ×  Height

So in order to calculate the volume of cuboid three variable are required for length, width and height and one more variable cuboidVolume to hold the resultant volume of the cuboid.

The program is well explained in the comments added to each statement of the program. The program prompts the user to enter the value of height width and length of cuboid and the nextDouble() method is used to take the double type input values of height length and width. Then the program declares a double type variable cuboidVolume to hold the result of the volume of cuboid. Then the last printf statement is used to display the volume of cuboid in the format format "Volume of the cuboid (length  / height  / width ) is" and the result is displayed up to 2 decimal places.

The screenshot of the program along with its output is attached.

Complete Question:

Create a program that compares the unit prices for two sizes of laundry detergent sold at a grocery store. Console Price Comparison Price of 64 oz size: 5.99 Price of 32 oz size: 3.50 Price per oz (64 oz): 0.09 Price per oz (32 oz): 0.11

Using Python

Answer:

This program does not make use of comments (See explanation section)

price64 = float(input("Price of 64 oz size: "))

price32 = float(input("Price of 32 oz size: "))

unit64 = price64/64

unit32 = price32/32

print("Unit price of 64 oz size: ", round(unit64,2))

print("Unit price of 32 oz size: ", round(unit32,2))

if unit64>unit32:

     print("Unit price of 64 oz is greater" )

else:

     print("Unit price of 32 oz is greater" )

Explanation:

This line prompts the user for the price of 64 oz size

price64 = float(input("Price of 64 oz size: "))

This line prompts the user for the price of 32 oz size

price32 = float(input("Price of 32 oz size: "))

This line calculates the unit price of 64 oz size

unit64 = price64/64

This line calculates the unit price of 32 oz size

unit32 = price32/32

This next two lines print the unit prices of both sizes

print("Unit price of 64 oz size: ", round(unit64,2))

print("Unit price of 32 oz size: ", round(unit32,2))

The next line compares the unit prices of both sizes

if unit64>unit32:

This line is executed if the unit price of 64 oz is greater than 32 oz

     print("Unit price of 64 oz is greater" )

else:

This line is executed, if otherwise

     print("Unit price of 32 oz is greater" )

Answer:

Here is the modified DemoSalesperson2

public class DemoSalesperson2{ // class DemoSalesperson2

public static void main(String[] args) { //start of main() function body

SalesPerson[] sp = new SalesPerson[10]; // creates an array of SalesPerson object named sp

int start_id =111; // assign 111 to starting id number

double start_sal=25000; //assign 25000 to starting salary means salary will start from amount 25000

 for (int i =0; i<sp.length; i++) { //loop iterates until the value of loop variable i remains less then length of the array object sp

  sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i)); /*at each iteration  ID number from 111 through 120 and a sales value that ranges from $25,000 to $70,000, increasing by $5,000 for each successive is displayed using object array sp[] which calls the SalesPerson constructor to access id and sales */

 System.out.println(sp[i].getId()+"   "+sp[i].getAnnualSales() );  } } } /*uses object sp of class SalesPerson to access the methods getId which returns the id and getAnnualSales method which returns the annual sales, to display id and annual sales */

Explanation:

The question first requires a SalesPerson class with these requisites:

Class name: Salesperson.

Data fields for Salesperson: int ID number , double annual sales amount.

Methods: constructor SalesPerson() that requires values for both data fields, as well as get and set methods for each of the data fields.

So according to the complete question's requirement, I have implemented SalesPerson class:

public class SalesPerson {   // class name

//data members: integer type id variable and double type sales variable

   private int id;  

   private double sales;  

   public SalesPerson(int id_no, double annual_sales) {   //constructor that requires values for id and sales

       id = id_no;  

       sales = annual_sales;     }  

   public int getId() {   //accessor getId() method to get or access the value of id data field

       return id;     }  

   public void setId(int id_no) {   //mutator setId to set the value of id data field

       id = id_no;     }  

   public double getAnnualSales() {   //accessor getAnnualSales() method to get or access the value of sales data field

       return sales;     }  

   public void setAnnualSales(double annual_sales) { //mutator setAnnualSales to set the value of sales data field

       sales = annual_sales;     }  }

However you can use my DemoSalesperson2 application for your own SalesPerson class.

Now I will explain the working of for loop used in DemoSalesperson2

Iteration 1:

i=0

i<sp.length is true because length of sp[] is 10 so i<10

This means the body of for loop will execute.

The statement inside the body of for loop is :

 sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i));

class SalesPerson constructor is used to access the data members of SalesPerson class

start_id = 111

start_sal=25000

start_id+i = 111 + 0 = 111

start_sal+5000*(i) = 25000 + 5000 (0) = 25000

The values 111 and 25000 are stored to sp[0] means at the first index of the sp array.

System.out.println(sp[i].getId()+"   "+sp[i].getAnnualSales() );  

This statement uses sp object to get access to the getId and getAnnualSales methods to print the id number and sales amount.

So the output at 1st iteration is:

111   25000.0

Iteration 1:

The value of i is incremented to 1 so now i = 1

i<sp.length is true because length of sp[] is 10 so i<10

This means the body of for loop will execute.

The statement inside the body of for loop is :

 sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i));

class SalesPerson constructor is used to access the data members of SalesPerson class

start_id = 111

start_sal=25000

start_id+i = 111 + 1 = 112

start_sal+5000*(i) = 25000 + 5000 (1) = 25000 + 5000 = 30000

The values 111 and 25000 are stored to sp[1] means at the first index of the sp array.

System.out.println(sp[i].getId()+"   "+sp[i].getAnnualSales() );  

This statement uses sp object to get access to the getId and getAnnualSales methods to print the id number and sales amount.

So the output at 1st iteration is:

112   30000.0

The loop keeps iterating and the value of id is incremented by 1 and value of sales is increased by 5000 at every iteration.

This loop continues to execute until the value of i exceeds the length of sp array i.e. 10.

The values from iteration 1 to 8 following the above explanation are:

Iteration 1:

111    25000.0

Iteration 2:

112    30000.0

Iteration 3:

113    35000.0

Iteration 4:

114   40000.0  

Iteration 5:

115   45000.0  

Iteration 6:

116   50000.0                                                          

Iteration 7:

117   55000.0                                                                                                      

Iteration 8:                                                                                      

118   60000.0      

Iteration 9:                                                                                    

119   65000.0

Iteration 10:                                                                                    

120   70000.0

At iteration 11 the for loop body will not execute as value of i at 11th iteration is i = 10 and i<sp.length evaluates to false as i = sp.length because length of sp array is 10 and now the value of i is also 10. So the loop ends. Screenshot of the program and its output is attached.

Answer:

link encryption

Explanation:

In e-mail, SSL/TLS provides link encryption.

The SSL is an acronym for Secured Socket Layer and it is one of the secured way of authenticating and encrypting data between a computer and the mail server.

In the case of a TLS, it is an acronym for Transport Layer Security and it basically is used for providing authentication and encryption of data between two communicating systems on a network.

This ultimately implies that, SSL/TLS are standard network protocols that provides data integrity and privacy to users when communicating over the internet or networking devices as they're made to encrypt user credentials and data from unauthorized access. The SSL/TLS are an application layer protocol used for the encryption of mails sent over the internet, in order to protect user information such as username and password.

Answer:

b) all the threads should be duplicated

Explanation:

The fork provides a process to start a new one, and the new process is not the same program. The exec system call com in play. Exec replaces the currently running process with information. The process is launching a new program firstly fork and create a new process. Exec load into memory. Fork copies of all attribute the new process except for memory. A clone system call implements the kernel fork. Forking provides the existing process. And the thread should be duplicated.

Answer:

The operating system must by the use of policies define access to and the use of all computer resources.

Policies are usually defined during the design of the system. These are usually default in settings. Others are defined and or modified during installation of the addon and or third-party software.

Computer Security Policies are used to exact the nature and use of an organisations computers systems. IT Policies are divided into 5 classes namely:

Cheers!

Answer:

Following are the code to this question:

public class Locker //defining a class Locker

{

public static void main(String[] ax)//defining main method  

{

boolean[] locker = new boolean[101]; //defining boolean array locker that's size is 100.

int j,s1,k1,x;

x=locker.length;

for (j=1;j<x; j++)//defining loop to assigns value false in locker array

{

locker[j] = false;// assign value false

}

for (j=1;j<x; j++)//defining loop loop to assign value true in array  

{

locker[j] = true;//assign value true

}

for(s1=2; s1<x; s1++)//defining loop to count locker from 2nd place

{

for(k1=s1; k1<x; k1=k1+s1)// defining inner loop to assign value  

{

if(locker[k1]==false) //defining if block for check false value  

{

   locker[k1] = true;// if condition is true it assign value true

}

else //defining else block

{

   locker[k1] = false;//assign value false in locker array

}

}

}

for(s1=1; s1<x; s1++)//defining loop to print locker value

{

if (locker[s1] == true) //defining if block that check Locker array value is equal to true

{

System.out.println("Locker " + s1 + " Open");//print Locker value with message  

}  

}

}

}

Output:

Locker 1 Open

Locker 4 Open

Locker 9 Open

Locker 16 Open

Locker 25 Open

Locker 36 Open

Locker 49 Open

Locker 64 Open

Locker 81 Open

Locker 100 Open

Explanation:

In the above code, a class "Locker" is declared, inside the class main method is declared, in which a boolean array "locker" is declared that's size is 100, in the next line fouth integer variable " j,s1,k1, and x" is declared, in which variable x is used to hold the boolean array length value, and other variable used in the loop.

Answer:

I am writing a C program:

#include <stdio.h> //to use input output functions

void printIt(double annual_in){ //function printIt

   if(annual_in >90000) //check if the income is greater than 90000

   printf("Congratulations. Doing great!"); //print this message if income value is greater than 90000

   else //if annual income is less than 90000

   printf("You WILL make $50,000, if you keep going"); } //print this message if income value is less than 90000

int main() //start of main() funciton body  

{   double income; //declares a double type variable income to hold annual income value

   printf("Enter annual income: "); //prompts user to enter annual income

   scanf("%lf",&income); //reads income value from user

   printIt(income); } // calls printIt method by passing input income to that function

Explanation:

The program is well explained in the comments mentioned with each statement of the program. The flowchart is attached.

First flowchart flow1 has a separate main program flowchart which reads the income and calls printIt function. A second flowchart is of prinIt() method that checks the input income passed by main function and displays the corresponding messages and return.

The second flowchart flow2 is the simple flowchart that simply gives functional description of the C program as flowchart is not where giving function definitions is important. Instead of defining the function printIt separately for this C program, a high-level representation of functional aspects of this program is described in second flowchart while not getting into implementation details.

Answer:

The three primitive data types in JavaScript are:

1. Numbers

2. Strings of text(known as "strings")

3. Boolean Truth Values (known as "booleans")

Answer & Explanation:

This program is written in C++ and it combines the step 1 and step 2 to create a menu driven program

Each line makes use of comments (as explanation)

Also, see attachment for program file

Program Starts Here

//Put Your Name Here; e.g. MrRoyal

//This program calculates the area of circle, triangle and square; depending on the user selection

//The next line include necessary header file

#include<iostream>

using namespace std;

int main()

{

//The next line defines variable pi as a constant with float datatype

const float pi = 3.14159;

// The next two lines declares all variables that'll be needed in the program

string choice;

float length, base, height, radius, area;

// The next four lines gives an instruction to the user on how to make selection

cout<<"Press 1 to calculate area of a square: "<<endl;

cout<<"Press 2 to calculate area of a circle: "<<endl;

cout<<"Press 3 to calculate area of a triangle: "<<endl;

cout<<"Press 4 to quit: "<<endl;

//This  next line prompts user for input

cout<<"Your choice: ";

//This next line gets user input and uses it to determine the next point of execution

cin>>choice;

if(choice == "1")  //If user input is 1, then the choice is area of square

{

 cout<<"Length: ";  //This line prompts user for length of the square

 cin>>length;  // This line gets the length of the square

 area = length * length;  //This line calculates the area

 cout<<"Area: "<<area;  //This line prints the calculated area

}

else if(choice == "2") //If user input is 2, then the choice is area of circle

{

 cout<<"Radius: ";  //This line prompts user for radius

 cin>>radius;  //This line gets radius of the circle

 area = pi * radius * radius;  // This line calculates the area

 cout<<"Area: "<<area;  //This line prints the calculated area

}

else if(choice == "3") //If user input is 2, then the choice is area of triangle

{

 cout<<"Base: "; //This line prompts user for base

 cin>>base;  //This line gets the base

 cout<<"Height: ";  //This line prompts user for height

 cin>>height;  //This line gets the height

 area = 0.5 * base * height;  //This line calculates the area

 cout<<"Area: "<<area;  //This line prints the calculated area

}

else if(choice == "4")  //If user input is 4, then the choice is to quit

{

 //Do nothing and quit

}

else  //Any other input is invalid

{

 cout<<"Invalid Option Selected";

}

return 0;

}

Answer:

False

Explanation:

The private member of a class is not accessible by using the Dot notation ,however the private member are those which are not accessible inside the class they are accessible outside the class  .The public member are accessible inside the class so they are accessible by using the dot operator .

Following are the example is given below in C++ Language

#include<iostream>   // header file

using namespace std;  

class Rectangle

{    

   private:  

       double r; // private member  

   public:      

       double  area()  

       {     return 3.14*r*r;  

       }        

};  

int main()  

{    

  Rectangle r1;// creating the object  

   r1.r = 3.5;  

 double t= r1.area(); // calling

cout<<" Area is:"<<t;  

   return 0;  

}  

Output:

compile time error is generated

The correct program to access the private member of class is given below

#include<iostream>   // header file

using namespace std;  

class Rectangle

{    

   private:  

       double r; // private member  

   public:      

       double  area()  

       {    

r1=r;

double t2=3.14*r2*r2;

return(t2); // return the value  

       }        

};  

int main()  

{    

  Rectangle r1;// creating the object  

   r1.r = 1.5;  

 double t= r1.area(); // calling

cout<<" Area is:"<<t;  

   return 0;  

}  

Therefore the given statement is False

Answer: symmetric encryption

Explanation:

The Secure Sockets Layer (SSL) protocol is required by the Web servers and the web browsers in order to protect the data of the users during transfer through the creation of an encrypted channel that is unique for private communications that occur over the Internet.

The Secure Sockets Layer relies on the encryption in order to secure the link that exists between the client and the server which is the website.

This implies that the encryption and also the decryption of the data will be done using a cryptographic key that is shared. The cryptographic key will be generated and shared on accordance with transport layer security handshake.

Answer:

hello your question has some missing parts

To configure a router / modem, what type of IP interface configuration should you apply to the computer you are using to access the device administration web app?

answer ; Gigabit interface

Explanation:

To configure a router/modem the type of IP interface configuration you should apply to the computer you are using to access the the devices administration web app should be Gigabit interface.

This is because Gigabit interface offers a very efficient and high band width and also a very high speed link which operates at 1000 Mbps, or 1 Gbps and it is the the standard used due to the speed it offers as it also offers improved performance over Ethernet

Answer:

No

Explanation:

If we used an inadmissible heuristic in A* tree search, it cannot  change the completeness of the search, and this is because as long as a heuristic function is bounded, then A* tree search would visit all the nodes available  and would definitely find a path to an existing goal

A* tree search is a  search strategy that is used to find and establish an efficient path between points, and the node in a search tree can be visited several times  as well

Answer:

Threat assessment

Explanation:

A threat assessment deals with the potential for weaknesses within the existing infrastructure to be exploited.

Threat Assessment is further explained as the practice of determining or ascertaining the credibility and seriousness of a potential threat, and also the probability or chases of the threat will becoming a reality.

Threat assessment is separate to the more established procedure of violence-risk assessment, which seek to forcast an individual's general capacity and tendency to respond to situations violently. Instead, threat assessment aims to interrupt people on a route to commit "predatory or instrumental violence, the type of behavior connected with targeted attacks".

Answer:

Threat assessment

Explanation:

In an IT system, threat assessment is the analysis, evaluation and prevention of actions, events and operations that can greatly affect the system. It explores the potential for weaknesses within existing infrastructure to be exploited.

The threat assessment is a very important assessment that needs to be taken in virtually all domains. Here are a few reasons why it is important in an IT system;

i. Prevention of data loss

ii. Prevention of system or network of systems downtime

In carrying out threat assessment, one might need to do the following;

i. identification and prioritization of infrastructure including the software and hardware applications in the system.

ii. identification of potential threats such as system failure, natural disaster, unwanted access.

iii. identification of vulnerabilities in the system.

iv. analysing controls by determining who has access and who doesn't.

v. analysing the impact of a threat occurrence.

vi. documentation of analysis and evaluation results.