Exam DES-1B21 topic 1 question 14 discussion

SEC 17A-4f is about storing data in a non-rewritable, non-erasable fashion. FIPS 140-2 is about minimum security requirements for cryptographic modules in IT products. GCM (Galois/Counter Mode) is a block cipher mode of operation that uses universal hashing over a binary Galois field to provide authenticated encryption. And finally, CBC (Cipher Block Chaining) is a mode of operation for a block cipher - one in which a sequence of bits are encrypted as a single unit, or block, with a cipher key applied to the entire block. I didn't come across GCM or CBC in any of the ECS documentation. Therefore, answer: A.

D is for Security Exchange Commission and retention.

ECS uses RSA BSAFE Crypto-J JSAFE and JCE software module version 6.2.5 for data encryption that is based on the AES256 algorithm. https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h18850-ecs-data-at-rest-encryption-whitepaper.pdf