For bad software, probably a virus/malware/ransomware kind of thing. If it is good software, probably a program that organizes your files, adjusts certain things, but do not record your files (no programs are at the top of my head, sorry).
Answer:
Following are the code to the given question:
#include <iostream>//header file
using namespace std;
class Window //defining a class Window
{
private:
int width, height;//defining integer variable
public:
friend ostream& operator << (ostream& stm, Window& width)//defining a friend function that takes two parameters
{
return stm<<"a ("<<width.width<<" x "<<width.height<<") window"; //use return keyword that return its values
}
Window(int width, int height): width(width), height(height)//defining parameterized constructor that inherit width and height in its parameters
{}
};
int main() //Main method
{
Window w(80,90);//calling class constructor
cout<<w;//print object value
return 0;
}
Output:
a (80 x 90) window
Explanation:
In the above code, a class "Window" is defined that uses a friend function "ostream& operator" is declared that uses the "ostrea&" as a data type to hold two-variable "stm and w" in its parameter, and declared the parameterized constructor to hold value by inheriting width and height in its parameters.
Inside the main method, a class object is created that calls the constructor and uses the print method to print object value.
Answer:
The system that will be more prone to attack or vulnerability is the bank that has ten branches spread throughout California with the data being stored on a mainframe in San Francisco.
Explanation:
Solution
If the databases are not shared by all the branches throughout the network, they could not be hacked or accessed easily. but when the systems are in a network and share databases or resources,then these could be more vulnerable to unauthorized persons or individuals.
The data been stored on a mainframe in San Francisco that is a centralized access by 10 branches of another bank. what this implies is that networking is involved or used to share data.
With this example, the chances of vulnerability or attacks increases from the following :
- Accounts payable could be disturbed by changing cash in payment false.
- Entering incorrect data into the system. such transactions can be altered, deleted by unauthorized persons.
- Transaction fraud like hacking, masquerading are very common in a networked system.
Answer:
Option(d) is the correct answer to the given question .
Explanation:
The UPnP is known as universal plug and play is a collection of computing protocols that's main objective to allow the virtual networks like desktop computers , wireless traffic, Wi-Fi access stations and smart applications to seamlessly explore one another's existence on the system and to built time series sharing internet services.
- When we enabling the UPnP it will improve the efficiency of the video streaming service while retaining marketing capability to copy big files to the cloud storage .
- All the other options are not suitable for improve the efficiency of the video streaming service that's why they are incorrect options .
So Enable UPnP is the right answer
