ASAP QUESTION 1,4,8,11,16,23,24

1. Briefly explain the difference between physical and logical security. 2. What is a countermeasure? 3. What is a white hat hacker? 4. Briefly explain what secrecy, integrity, and necessity are in the context of computer security. 5. What is a man-in-the-middle exploit? 6. What is a security policy? 7. Provide one example of an integrity violation. 8. What is a session cookie? 9. What is a third-party cookie? 10. What is a Web bug? 11. What is active content? 12. What is a scripting language? 13. What is a zombie? 14. What is a macro virus? 15. How is a multivector worm or virus a more severe threat than other worms or viruses? 16. Why is an SSL-EV digital certificate superior to an ordinary digital certificate 17. What is ransomware? 18. What is signed code? 19. What is steganography? 20. What is a biometric security device? 21. What is a backdoor? 22. Who are most likely to be victimized by a phishing expedition? 23. Briefly describe what occurs in a denial-of-service attack. 24. What is a hash algorithm and when might it be used? 25. What is a message digest? 26. What is a dictionary attack? 27. How does a packet-filter firewall work? 28. What is computer forensics