Tips and Tricks (A bunch I learned from /u/AmethystWind) Learn what Symmetric Encryption is and you'll know what Asymmetric Encryption is(n't). o DES, 3DES, IDEA, AES, Blowfish, Twofish, RC4 o RC4 is the only encryption standard that is a stream cipher. Everything else is a block cipher. o Elliptical Curve Cryptography (ECC) is used on mobile devices. Hashing algorithms increase in size alphabetically. o MD-5 & NTLM - 128-bit o RIPEMD & SHA-1 - 160-bit o SHA-2 - 256-bit Please Do Not Throw Sausage Pizza Away - Mnemonic for OSI Model (more of a Network+ thing) o Physical, Datalink, Network, Transport, Session, Presentation, Application PICERL (pic-earl) - How I memorized the incident response steps o Preparation, Identification, Containment, Eradication, Recovery, Lessons Learned MEMORIZE THOSE PORTS. Just brute force them into your brain. Use flash cards. Memorize the port numbers first then whether its TCP, UDP, or both. Don't just memorize what the acronym stands for, though it will help if you do. Know what it does and how it is used. Read the MCQs carefully. Look for key words. Process of elimination.