A network architect is troubleshooting the L2TPv3 tunneling security due to the untrusted nature of the underlaying network. Which two L2TPv3 features does the architect deploy to address the ongoing issues?
(Choose two.)

Refer to the exhibit. A customer carrier running MPLS VPN wants to utilize a backbone carrier to forward traffic and exchange VPNv4 prefixes between the two customer carrier networks depicted.
Which two sets of routers must establish MP-iBGP sessions? (Choose two.)

Which method can be used to discover targeted LDP neighbors dynamically when configuring VPLS between PE routers?

Refer to the exhibit.

Which statement about this configuration is true?

Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC.
Which additional task can you perform to complete the configuration?