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LLCC / cncsp / CNC 142 / cnc attack

cnc attack

cnc attack


School: Lincoln Land Community College
Department: cncsp
Course: Intro to Ethics, Security and Networks
Professor: Jan marsaglia
Term: Spring 2017
Tags: Computer Science, Computer, networks, ethics, and Security
Cost: 25
Name: Intro to Ethics and Security Week 11
Description: These notes cover the information presented in the text for chapter 11, week 11.
Uploaded: 02/22/2017
2 Pages 181 Views 0 Unlocks

Leaving a connection half open is referred to as what?

What do you call a DoS launched from several machines simultaneously?

What is one of the most common and simplest attacks on a system?

Kasandra Angermeier  CNC 142 Chapter 11: Denial of Service Attacks  1. What is one of the most common and simplest attacks on a system? ~ (A) Denial of Service Attack  2. Which of the following is not a valid way to define a computer’s workload?  ~ (C) Maximum Voltage  3. If you want to learn more check out downloadclassnotes
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What do you call a DoS launched from several machines simultaneously?  ~ (D) DDoS Attack 4. Leaving a connection half open is referred to as what?  ~ (B) Partial Attack 5. What is the basic mechanism behind a DoS attack? ~ (C) Computers cannot handle large volumes of TCP traffic.  6. What is the most significant weakness in a DoS attack from the attacker’s viewpoint?  ~ (D) The attack must be sustained.  7. What is the most common class of DoS attacks?  ~ (A) Distributed Denial of Service Attacks 8. What are three methods for protecting against SYN flood attacks?  ~ (A) SYN cookies, RST cookies, Stack Tweaking  9. Which attack mentioned in this chapter causes a network to perform a DoS on one of its  own servers?  ~ (C) Smurf Attack 10. A defense that depends on a hash encryption being sent back to the requesting client is  called what? ~ (A) Stack Tweaking 11. What type of defense depends on sending the client an incorrect SYNACK?  ~ (B) RST cookies  12. What type of defense depends on changing the server so that unfinished handshaking  times out sooners?  ~ (A) Stack Tweaking 13. What type of attack is dependent on sending packets too large for the server to handle?  ~ (A) Ping of Death 14. What type of attack uses internet routers to perform a DoS attack?  ~ (D) DDoS Attack 15. Which of the following is an example of a DDoS Attack?  ~ (A) MyDoom virus.  16. How can securing internal routers help to protect against DoS attacks?  ~ (D) It will prevent an attack from propagating across network segments.  17. What can you do to your internal network routers to help defend against DoS attacks?  ~ (B) Disallow all traffic that comes from outside the network.  18. Which of the following was rated by many to be the fastest growing virus on the internet? ~ (A) MyDoom Virus 19. What can you do with your firewall to defend against DoS attacks?  ~ (D) Block all incoming ICMP packets.  20. Why will protecting against Trojan horse attacks reduce DoS attacks?  ~ (B) Because if you can stop a Trojan horse attack, you will also stop DoS attacks.  

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