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

A transposition cipher rearranges characters or bits of plaintext to produce ciphertext. In Kevin’s scenario, he used an algorithm that rearranges the same characters to create the ciphertext. This aligns with the characteristics of a transposition cipher, where the order of characters is altered without changing their identity.

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•  The backup mechanism described in the scenario, which involves using external devices (such as hard disks) and requires human interaction for backup operations, is known as onsite data backup. In this approach, backups are stored within the organization’s premises, making them susceptible to theft, damage, or natural disasters. It is essential to consider additional offsite or cloud-based backup solutions to enhance data resilience and security.
• References: EC-Council Certified Security Specialist (E|CSS) documents and study guide12.

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.