Choose the best answer about IKEv2.

The correct answer isAin the context of the exam’s terminology, but the wording is not technically perfect. IKEv2 does not use IKEv1’s Main Mode, Aggressive Mode, and Quick Mode structure. Instead, IKEv2 establishes an IKE Security Association and then one or more Child Security Associations. Many training materials describe these asParent SAandChild SA, where the parent protects the IKE control exchange and the child protects the actual IPsec data traffic. Check Point’s R82 VPN documentation confirms that Main Mode and Aggressive Mode apply specifically toIKEv1, and it separately describes IKEv2 support as an alternative encryption negotiation mode. Options B and C are clearly wrong because Main, Aggressive, and Quick are IKEv1 terms. Option D is technically defensible in strict protocol language, but because the answer set includes Parent/Child terminology, option A is the intended CCSE answer. The safe exam interpretation is:IKEv1 uses Phase 1/Phase 2; IKEv2 maps that concept to Parent/Child SA terminology.

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