Which step in the DMVPN spoke configuration sequence is optional because default settings can be used?
- configuring NHRP client parameters
- configuring a transform set
- creating an mGRE tunnel interface
- configuring an IPsec profile
- generating or configuring authentication credentials to authenticate the hub and other spoke devices
Explanation: During the configuration of a DMVPN spoke (or hub), the sources state that configuring a transform set within the IPsec profile is optional. If a specific transform set is not defined, the router will automatically use default IPsec transform sets. Conversely, the IPsec profile itself is mandatory.
Related exam: Checkpoint Exam: MPLS and VPN Technologies
