Cisco® 300-730 Exam Practice Questions (P. 1)

GPT-4o - Answer

The IKEv2 CREATE_CHILD_SA packet is indeed the correct choice when it comes to negotiating a second set of traffic selectors between two peers. This exchange is used not only for rekeying the existing Child SAs but also for establishing new ones, which involves negotiating new traffic selectors. During the CREATE_CHILD_SA exchange, payloads such as the SA proposal and traffic selector proposal are essential, as they provide details about the traffic selectors like IP addresses and port numbers for the new or rekeyed Child SA. This makes the CREATE_CHILD_SA exchange crucial for dynamically managing security associations and traffic selectors in an IKEv2 VPN.

GPT-4o - Answer

The correct command for a FlexVPN hub in a hub-and-spoke topology where spoke-to-spoke communication is disallowed is "interface virtual-template". This command allows the hub to dynamically create virtual access interfaces necessary for each spoke connection. This setup avoids the necessity for fixed configurations per spoke, hence optimizing scalability and management of VPN connections. Additionally, any mention of "ip nhrp redirect" in this context is inappropriate because it's used for facilitating spoke-to-spoke communications, which are not desired in this scenario.

GPT-4o - Answer

In GETVPN, the key server plays a crucial role as it determines the traffic encryption policy for Group Members (GMs). By centralizing the encryption configuration, the key server enhances security management and operational efficiency across the network by specifying which traffic should be encrypted. This setup not only simplifies the administrative overhead but also strengthens security by maintaining consistent policy application among all group members.