Computer Science: An Overview (12th Edition)
12th Edition
ISBN: 9780133760064
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
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Expert Solution & Answer
Chapter 4, Problem 11SI
Explanation of Solution
Security of PC connected to the internet:
“Yes”, the owner must install a proper firewall to prevent the PC connected to the Internet from a denial of service attack implemented by another party.
Reason:
The PC owner is liable to the extent if the PC contains firewall installed in it or not and the level of protection from the firewall.
The PC owner can protect his personal computer connected to the internet from the denial of service attack if he installs a firewall in the PC.
The denial service attack is a type of attack by the hackers which prevents the authentic user to access the service...
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Consider the following scenario: you receive a notification from your company's mail server informing you that the password for your account has been changed and that you must confirm the change. According to what you know, you have not altered the password! What may have motivated the password change, and how did it happen? Was it a virus, and if so, on which machines, that may have provided an attacker with the information they needed to successfully reset the password?
Consider the following scenario: you get a message from your company's mail server informing you that the password for your account has been changed and that you must confirm the change. According to what you know, you have not altered the password! What may have motivated the password change, and how did it happen? Was it a virus, and if so, on which computers, that may have given an attacker with the information they needed to successfully reset the password?
Is it true that nobody has ever been able to mount a successful distributed denial of service attack?
Chapter 4 Solutions
Computer Science: An Overview (12th Edition)
Ch. 4.1 - What is an open network?Ch. 4.1 - Prob. 2QECh. 4.1 - What is a router?Ch. 4.1 - Prob. 4QECh. 4.1 - Prob. 5QECh. 4.1 - Prob. 6QECh. 4.2 - Prob. 1QECh. 4.2 - Prob. 2QECh. 4.2 - Prob. 3QECh. 4.2 - Prob. 4QE
Ch. 4.2 - Prob. 5QECh. 4.2 - Prob. 6QECh. 4.2 - Prob. 7QECh. 4.2 - Prob. 8QECh. 4.3 - Prob. 1QECh. 4.3 - Prob. 2QECh. 4.3 - Prob. 3QECh. 4.3 - Prob. 4QECh. 4.3 - Prob. 5QECh. 4.4 - Prob. 1QECh. 4.4 - Prob. 2QECh. 4.4 - Prob. 3QECh. 4.4 - What keeps a computer on the Internet from...Ch. 4.5 - Prob. 1QECh. 4.5 - Prob. 2QECh. 4.5 - Prob. 3QECh. 4.5 - Prob. 4QECh. 4.5 - Prob. 5QECh. 4 - Prob. 1CRPCh. 4 - Prob. 2CRPCh. 4 - Prob. 3CRPCh. 4 - Prob. 4CRPCh. 4 - Prob. 5CRPCh. 4 - Prob. 6CRPCh. 4 - Prob. 7CRPCh. 4 - Prob. 8CRPCh. 4 - Prob. 9CRPCh. 4 - Prob. 10CRPCh. 4 - Prob. 11CRPCh. 4 - Prob. 12CRPCh. 4 - Prob. 13CRPCh. 4 - Prob. 14CRPCh. 4 - Prob. 15CRPCh. 4 - Prob. 16CRPCh. 4 - Prob. 17CRPCh. 4 - Prob. 18CRPCh. 4 - Prob. 19CRPCh. 4 - Prob. 20CRPCh. 4 - Prob. 21CRPCh. 4 - Prob. 22CRPCh. 4 - Prob. 23CRPCh. 4 - Prob. 24CRPCh. 4 - Prob. 25CRPCh. 4 - Prob. 26CRPCh. 4 - Prob. 27CRPCh. 4 - Prob. 28CRPCh. 4 - Prob. 29CRPCh. 4 - Prob. 30CRPCh. 4 - Prob. 31CRPCh. 4 - Prob. 32CRPCh. 4 - Prob. 33CRPCh. 4 - Prob. 34CRPCh. 4 - Prob. 35CRPCh. 4 - Prob. 36CRPCh. 4 - Prob. 37CRPCh. 4 - Prob. 38CRPCh. 4 - Prob. 39CRPCh. 4 - Prob. 40CRPCh. 4 - Prob. 41CRPCh. 4 - Prob. 42CRPCh. 4 - Prob. 43CRPCh. 4 - Prob. 44CRPCh. 4 - Prob. 45CRPCh. 4 - Prob. 46CRPCh. 4 - Prob. 47CRPCh. 4 - Prob. 48CRPCh. 4 - Prob. 49CRPCh. 4 - Prob. 50CRPCh. 4 - Prob. 1SICh. 4 - Prob. 2SICh. 4 - Prob. 3SICh. 4 - Prob. 4SICh. 4 - Prob. 5SICh. 4 - Prob. 6SICh. 4 - Prob. 7SICh. 4 - Prob. 8SICh. 4 - Prob. 9SICh. 4 - Prob. 10SICh. 4 - Prob. 11SICh. 4 - Prob. 12SI
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Similar questions
- Consider the following example: Your company's mail server sends you an email informing you that your password has been changed and that you must take action to confirm this. However, to the best of your knowledge, you have not changed the password. What's going on? What caused the password to be changed, and why was it changed? How did an attacker acquire the necessary information to properly reset the password? Was it a virus, and what systems was it infecting?arrow_forwardSuppose you receive a letter, which appears to come from your company’s mail server stating that the password for your account has been changed, and that an action is required to confirm this. However, as far as you know, you have not changed the password! What may have occurred that led to the password being changed? What type of malware, and on which computer systems, might have provided the necessary information to an attacker that enabled them to successfully change the password?arrow_forwardIs it true that a distributed denial of service attack, often known as a DDoS attack, can only be carried out by one person?arrow_forward
- Is it possible for a single person to carry out an attack that results in a distributed denial of service?arrow_forwardIs there a typical link between a network that cannot be trusted, a firewall, and a network that can be trusted, and how does this connection function?arrow_forwardLet's consider a cybersecurity scenario in which we want to model the rate at which a system is targeted by cyberattacks over a certain period of time. Imagine a company's server being targeted by distributed denial-of-service (DDoS) attacks. These attacks flood the server with a large volume of traffic, causing it to become overwhelmed and unable to respond to legitimate requests. Based on historical data and network analysis, the average rate of DDoS attacks targeting the server is five per hour. What are the probabilities of experiencing different numbers of attacks (0, 1, and 2) within that hour? the calculus, and a explanation of your solution (calculus). please please dont use Ai tools answers by human logic.arrow_forward
- Assume that you will need to confirm that your account has been renewed after getting a message from the mail server that is associated with your organization. Yet, to the best of your knowledge, you have not altered the password in any way! The password was changed at some point for unknown reasons. What type of malware, and on what devices would it have been present, might have provided an adversary with the information they need to successfully reset the password?arrow_forwardA "distributed denial of service attack" (DDoS) may be coordinated by one person. What's your opinion?arrow_forwardHas anybody ever successfully managed to conduct a distributed denial of service attack?arrow_forward
- Consider the case below: You get a notification from the mail server of your organization alerting you that your password has been changed and that you must confirm it. To your knowledge, however, you have not updated your password! There are a variety of potential causes for the password change. Was it a virus, and if so, on which systems, that provided an attacker with the necessary information to reset the password?arrow_forwardAssume that the mail server at your employer sends you a message alerting you that the password for your account has been changed and that you need to take some action in order to confirm this. Nevertheless, it appears that you have not modified the password in any way, shape, or form! What may have possibly occurred to prompt the need to change the password? Whose systems were infected with what sort of malware, and how did the attacker get the information they required to successfully reset the password?arrow_forwardWhat precisely is the name given to the person who is in charge of organizing a distributed denial of service attack if they are the only person involved?arrow_forward
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