1) Use the Internet to identify some network firewalls and compare their features. Note if they are rule-based or application-aware, perform stateless or stateful packet filtering, what additional features they include (IDS, content filtering, etc.), their costs, etc. Which woul you recommend? Why? 2) Differentiate between symmetric and asymmetric encryption 3) Describe the use of block chain? 4) Describe the use of steganography 5) What are some cryptographic attacks 6) what are some limitations of cryptography 7) what are hashing used for? 8) What is the difference between MD5 and SHA hashin algorithms 9) describe EFS, Bit Locker, PGP and GPG 10) list the steps needed to use bit locker with a TPM 11) describe PKI certificates