Certified Ethical Hacker (CEH) v13 312-50v13 — Question 308

You are Jordan, a cryptographic assessor at Cascade Data in Portland, Oregon, reviewing the protection applied to telemetry logs. Your review finds an algorithm that operates on 128-bit blocks, accepts keys up to 256 bits, and the documentation notes it was one of the finalists in the AES selection process that aimed to replace legacy DES. Which symmetric encryption algorithm should you identify as being used?