Skillset can help you prepare! Sign up for your free Skillset account and take the first steps towards your certification.
What algorithm does DES use?
ECB
DEA
CFB
CBC
This is tricky question but, important to know because it is a typical CISSP test question. ISC2 tries to trip you up on purpose to see if you notice the nuance; DES uses the DEA algorithm, the rest of these answers are Modes, not algorithms. References: https://en.wikipedia.org/wiki/DataEncryptionStandard ( DEA is mentioned by isn't on this page ) Syngress CISSP Study Guide 3rd Edition p161. EDIT: From that wikipedia page: "Some documentation makes a distinction between DES as a standard and as an algorithm, referring to the algorithm as the DEA (Data Encryption Algorithm). "
Train with Skillset and pass your certification exam. Faster. Guaranteed.
Study thousands of practice questions that organized by skills and ranked by difficulty.
Create a tailored training plan based on the knowledge you already possess.
Know when you’re ready for the high-stakes exam. Have the confidence that you will pass on your first attempt.