NSE 7 – Network Security Technologies 7.2 — Question 28

There are four exchanges during IKEv2 negotiation.
Which sequence is correct?

Answer options

• A. IKE_Proposal, ID_Auth, PiggyBack_CHILD and Informational
• B. Init_Req, Wait_Init_Req, ID_Auth_Req and Create_CHILD_SA
• C. INIT_Req, INIT_Auth, ID_Child and SET_Nonce
• D. IKE_SA_INIT, IKE_Auth, Create_CHILD_SA and Informational

Correct answer: D

Explanation

The correct sequence for IKEv2 negotiation is D: IKE_SA_INIT, IKE_Auth, Create_CHILD_SA, and Informational. This sequence establishes the Security Association and authenticates the peers, followed by the creation of child Security Associations. The other options do not represent the correct order of exchanges involved in IKEv2 negotiation.