What is VLAN? What is the difference between VPN and VLAN? 38. What are three main data transmission methods in layer 2? 36. What is ARP and ARP poisoning (Flooding)? 35. What are sniffing attacks? Explain them 33. What are intrusion detection methods? Explain them 31. What are TCP header flags and what they do? 29. What is data centre multi-tier model design? 28. What are the three main transmission modes between devices in computer network? 26. What is 2FA and how can it be implemented for the public websites? 25. How would you reset a password-protected BIOS configuration? 24. What are the OSI layers and what is the job of network layer? 23. Can you tell me about common cyber-attacks? 22. What do you know about application security? 21. What is black hat, white hat and grey hat hackers? 20. What steps will you take to secure a server? 19. What are encoding, hashing and encryption? 18. Why do you need DNS (Domain Name System) monitoring? 17. What is a brute-force attack and how is it mitigated? 16. What is a DDOS attack and how is it mitigated? 15. How can you prevent Man-in-the-middle-attack? 14.
What is weak information security policy? 12. What do you know about cybersecurity frameworks? 10. What are IDS and IPS and How do you differentiate between IDS and IPS system? 9. What is Risk, Threat and Vulnerability in a network? 8. Explain the difference between process, guidelines, and policies? 6. What is the CIA triad? (Confidentiality, Integrity, Availability) 5. What do you have in your home network? 4. What is cybersecurity and why do companies need it? 3.
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