ECSS Exam Dumps : EC-Council Certified Security Specialist (ECSSv10)Exam

Certainly! Let’s analyze the situation and determine which network defense approach Alice employed on her laptop.

• Biometric Authentication:
• Network Defense Approaches:

Alice employed the Preventive Approach by using biometric authentication to secure her laptop against unauthorized access.

• The AP sends a challenge text to the station.
• The station connects to the network.
• The station encrypts the challenge text using its configured 128-bit key and sends the encrypted text to the AP.
• The station sends an authentication frame to the AP.
• The AP uses its configured WEP key to decrypt the encrypted text and compares it with the original challenge text.

Therefore, the correct sequence is C. 4—>1—>3—>5—>21. This order ensures that the challenge text is exchanged securely and verified by both the station and the AP during the shared key authentication process.

References:

• EC-Council Certified Security Specialist (E|CSS) documents and study guide.
• EC-Council Certified Security Specialist (E|CSS) course materials1234

The scenario described involves the use of a RADIUS (Remote Authentication Dial-In User Service) server. RADIUS is a client-server protocol that provides centralized network authentication12. In this case, the access point (client) forwards the connection request to the RADIUS server, which then sends authentication keys to both the access point and the user’s laptop (supplicant). This process helps the access point identify the wireless client12.

RADIUS servers are also known as AAA (Authentication, Authorization, and Accounting) servers because they provide these three services1. The authentication process begins when a user attempts to log into the network. Their device will request access either through the use of credentials or by presenting an X.509 digital certificate1. The RADIUS server then compares the user’s information with a list of users stored in a directory or IDP (Identity Provider)1.

Therefore, the authentication method demonstrated in the scenario is centralized authentication (Option D), where a central server (in this case, the RADIUS server) handles the authentication of users.