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collected 200 customer's username/passwords this way. They transferred money from the customer's bank account to various offshore accounts. Your decision of password policy implementation has cost the bank with USD 925, 000 to hackers. You immediately shut down the e-banking website while figuring out the next best security solution. What effective security solution will you recommend in this case? A. Implement Biometrics based password authentication system. Record the customers face image to the authentication database B. Configure your firewall to block logon attempts of more than three wrong tries C. Enable a complex password policy of 20 characters and ask the user to change the password immediately after they logon and do not store password histories D. Implement RSA SecureID based authentication system Answer: D Question: 17 More sophisticated IDSs look for common shellcode signatures. But even these systems can be bypassed, by using polymorphic shellcode. This is a technique common among virus writers ?it basically hides the true nature of the shellcode in different disguises. How does a polymorphic shellcode work?
Certification Preparation Material Page | 8 Question: 18 SYN Flood is a DOS attack in which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP connections. The signature of attack for SYN Flood contains: Question: 19 Which of the following type of scanning utilizes automated process of proactively identifying vulnerabilities of the computing systems present on a network?