CS6262- Network Security EXAM WITH ANSWERS.

CS6262- Network Security EXAM |\ |\ |\




WITH ANSWERS
|\ |\




DOS attack classification- Hitlist Scanning - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\



✔✔A portion of a list of targets is supplied to
|\ |\ |\ |\ |\ |\ |\ |\ |\




a compromised computer
|\ |\




DOS attack classification - Permutation Scanning - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔All compromised computers share a
|\ |\ |\ |\ |\




common pseudo-random permutation of the
|\ |\ |\ |\




IP address space.
|\ |\




DOS attack classification - Signpost Scanning - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔Uses the communication patterns of the
|\ |\ |\ |\ |\ |\




compromised computer to find new target. |\ |\ |\ |\ |\




DOS attack classification- Random Scanning - CORRECT
|\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔Each compromised computer probes
|\ |\ |\ |\




random addresses |\

, DOS attack classification - Random Spoofing - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔Generate 32-bit numbers and stamp
|\ |\ |\ |\ |\




packets with them. |\ |\




DOS attack classification - Subnet Spoofing - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔Generate random addresses within |\ |\ |\




a given address space.
|\ |\ |\




DOS attack classification - Fixed Spoofing - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔The spoofed address is the address
|\ |\ |\ |\ |\




of the target.
|\ |\




DOS attack classification - Infrastructure attack - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔The motivation of this attack is a
|\ |\ |\ |\ |\ |\ |\




crucial service of a global internet
|\ |\ |\ |\ |\




operation, for example core router
|\ |\ |\ |\




DOS attack classification - Server Application - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔The attack is targeted to a specific
|\ |\ |\ |\ |\ |\ |\




application on a server |\ |\ |\