IPSec VPN is a widely-acknowledged solution for enterprise network. Which three IPsec VPNstatements are true?()

A . IKE keepalives are unidirectional and sent every ten seconds B . IPsec uses the Encapsulating Security Protocol (ESP) or the Authentication Header (AH)protocol for exchanging keys C . To establish IKE SA, main mode utilizes six packets while aggressive mode utilizes only threepackets D . IKE uses the Diffie-Hellman algorithm to generate symmetrical keys to be used by IPsec peer

时间:2022-09-25 05:58:12 所属题库:CCNP(642-832)题库

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