Virus: Virus is a program that damages a computer or mobile device by changing the way it functions. This program is injected into an individual’s computer without his/her knowledge and once it is injected, it spreads and damages many of the files, applications, and even the operating system . Some of the signs of virus infection are as follows Message or image is displayed on the screen File might become corrupted Sound or music plays accidentally Missing files or applications

Question

Want to see the full answer?

Answer 1

Question

Chapter 4, Problem 3.3E

Program Plan Intro

Virus:

Virus is a program that damages a computer or mobile device by changing the way it functions.

This program is injected into an individual’s computer without his/her knowledge and once it is injected, it spreads and damages many of the files, applications, and even the operating system.

Some of the signs of virus infection are as follows

Message or image is displayed on the screen

File might become corrupted

Sound or music plays accidentally

Missing files or applications

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Abstract classes & Interfaces (Ch13) 5. See the code below and solve the following. class Circle { protected double radius; // Default constructor public Circle() ( } this(1.0); // Construct circle with specified radius public Circle(double radius) { } this.radius radius; // Getter method for radius public double getRadius() { } return radius; // Setter method for radius public void setRadius(double radius) { } this.radius = radius; // Implement the findArea method defined in GeometricObject public double findArea() { } return radius* radius * Math. PI; // Implement the find Perimeter method defined in GeometricObject public double findPerimeter() { } return 2*radius*Math.PI; // Override the equals() method defined in the Object class public boolean equals(Circlel circle) { } return this.radius == circle.getRadius(); // Override the toString() method defined in the Object class public String toString() { } } return "[Circle] radius = " + radius; 5-1. Define a class name…

6. What is Race condition? How to prevent it? [2 marks] 7. How many synchronization methods do you know and compare the differences. [2 marks] 8. Explain what are the “mutual exclusion”, “deadlock”, “livelock”, and “eventual entry”, with the traffic intersection as an example like dinning philosophy. [2 marks] 9. For memory allocation, what are the difference between internal fragmentation and external fragmentation. Explain with an example. [2 marks] 10. How can the virtual memory map to the physical memory. Explain with an example. [2 marks]

Your answers normally have 50 words. Less than 50 words will not get marks. 1. What is context switch between multiple processes? [2 marks] 2. Draw the memory layout for a C program. [2 marks] 3. How many states does a process has? [2 marks] 4. Compare the non-preemptitve scheduling and preemptive scheduling. [2 marks] 5. Given 4 process and their arrival times and next CPU burst times, what are the average times and average Turnaround time, for different scheduling algorithms including: a. First Come, First-Served (FCFS) Scheduling [2 marks] b. Shortest-Job-First (SJF) Scheduling [2 marks] c. Shortest-remaining-time-first [2 marks] d. Priority Scheduling [2 marks] e. Round Robin (RR) [2 marks] Process Arrival Time Burst Time P1 0 8 P2 1 9 P3 3 2 P4 5 4