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2 years ago

Describe different types of intrusions such as SQL PL/SQL, XML, and other injections.

1 answer:

8 0

Intrusion means unauthorized and harmful activities happening in your system. Any irregularities in the system is considered as intrusion and therefore monitored by administrators and can be detected using Intrusion Detection System.

Examples of Intrusion attacks in a network are:

Denial of Service (Dos) - denial of service means flooding the system causing it to crash and unable to respond to a service request. Normally, a DoS attack is facilitated by numbers of hosts sending enormous request to a victim computer. The requests can be in a form of code that would flood the system and making it to unresponsive.
Man in the Middle Attack (MiM) - a hacker would be in the middle of the communication between a client computer and a server computer. The hacker can mimic IPs within the network and steal information then sends it to the intended receiver.
SQL Injection - For websites that runs database like SQL, a code by the hacker can be added to the website and making him gained access to the database information successfully.

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assume that name is a variable of type stirng that has been assigned a value write an expression whose value is the last charact

Snezhnost [94]

Answer:

The most straight forward way to do it: in general string are zero index based array of characters, so you need to get the length of the string, subtract one and that will be the last character, some expressions in concrete languages would be:

In Python:

name = "blair"

name[len(name) - 1]

In JavaScript:

name = "blair"

name[name.length - 1]

In C++:

#include <string>

string name = "blair";

name[name.length() - 1];

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1 year ago

Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the ga

Ierofanga [76]

Answer:

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Explanation:

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1 year ago

Read 2 more answers

Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject afte

Marina86 [1]

The correct answer for this question is this one: "She can rename the 2 worksheet by right clicking the sheet tab. After right clicking the mouse, select Rename Sheet and type the preferred name of the sheet." Hope this helps answer your question and have a nice day ahead.

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2 years ago

Read 2 more answers

Write an if-else statement that displays 'Speed is normal' if the speed variable is within the range of 24 to 56. If the speed v

kari74 [83]

Answer:

import java.util.Scanner;

public class Speed{

int speed;

public Speed(int speed){

this.speed = speed;

}

public void checkSpeed(){

if(speed >= 24 || speed <= 56){

System.out.println("Speed is normal");

}

else

System.out.println("Speed is abnormal");

}

public static void main(String...args){

Scanner input = new Scanner(System.in);

int userSpeed = 0;

System.out.println("Enter a speed: ");

userSpeed = input.nextInt();

Speed obj1 = new Speed(userSpeed)

obj1.checkSpeed();

}

Explanation:

4 0

2 years ago

Write a Python3 program to check if 3 user entered points on the coordinate plane creates a triangle or not. Your program needs

natulia [17]

Answer:

tryagain = "Y"

while tryagain.upper() == "Y":

x1 = int(input("x1: "))

y1 = int(input("y1: "))

x2 = int(input("x2: "))

y2 = int(input("y2: "))

x3 = int(input("x3: "))

y3 = int(input("y3: "))

area = abs(x1 *(y2 - y3) + x2 * (y1 - y3) + x3 * (y1 - y2))

if area > 0:

print("Inputs form a triangle")

else:

print("Inputs do not form a triangle")

tryagain = input("Press Y/y to try again: ")

Explanation:

To do this we simply calculate the area of the triangle given that inputs are on plane coordinates i.e. (x,y).

If the area is greater than 0, then it's a triangle

If otherwise, then it's not a triangle.

This line initializes iterating variable tryagain to Y

tryagain = "Y"

while tryagain.upper() == "Y":

The following lines get the coordinates of the triangle

x1 = int(input("x1: "))

y1 = int(input("y1: "))

x2 = int(input("x2: "))

y2 = int(input("y2: "))

x3 = int(input("x3: "))

y3 = int(input("y3: "))

This calculates the area

area = abs(x1 *(y2 - y3) + x2 * (y1 - y3) + x3 * (y1 - y2))

This checks for the condition stated above.

if area > 0:

print("Inputs form a triangle") This is printed, if true

else:

print("Inputs do not form a triangle") This is printed, if otherwise

tryagain = input("Press Y/y to try again: ") This prompts the user to try again with another set of inputs

4 0

1 year ago