If you need strong protection for the encryption of user data, what option would be the BEST choice?
A . When you need strong encryption, IPSec is not the best choice. SSL VPN’s are a better choice.
B . Use Daffier-Hellman for key construction and pre-shared keys for Quick Mode. Choose SHA in Quick Mode and encrypt with AE
C . Use AH protocol. Switch to Aggressive Mode.
D . Disable Differ-Hellman by using stronger certificate based key-derivation. Use AES-256 bit on all encrypted channels and add PFS to Quick Mode. Use double encryption by implementing AH and ESP as protocols.
E . Use certificates for Phase 1, SHA for all hashes, AES for all encryption and PFS, and use ESP protocol.
Answer: D
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