Which level(s) must protect against both covert storage and covert timing channels? seenagape 9 years ago Which level(s) must protect against both covert storage and covert timing channels? A. B3 and A1 B. B2, B3 and A1 C. A1 D. B1, B2, B3 and A1 Explanation: pg 302 Krutz: CISSP Prep Guide: Gold Edition ← Previous question Next question →