yes B is the right answer sdwan nterface interface-name tunnel-interface tloc-extension-gre-to extended-interface-ip-address

B is correct - the rest aren't valid commands: vedge(config-vpn-0)# int g0/0 vedge(config-interface-g0/0)# gre-interface ------------------------------^ syntax error: unknown command vedge(config-interface-g0/0)# extended-interface ------------------------------^ syntax error: unknown command vedge(config-interface-g0/0)# tloc-interface ------------------------------^ syntax error: unknown command vedge(config-interface-g0/0)# tunnel-interface vedge(config-tunnel-interface)#

Also agree with B

B. Correct Link: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-cr-book/sdwan-cr-book_chapter_010.html#wp2314758100 sdwan interface tloc-extension-gre-to—Configure a tunnel interface over which to run TLOC extensions (on IOS XE routers only). TLOC extensions allow you to extend a TLOC, over a GRE tunnel, to another router in the branch. sdwan interface tloc-extension-gre-from —Configure an interface as an extended interface, to channel TLOC traffic from a source branch router to the local WAN interface (on IOS XE routers only).

I think tunnel-interface is the only command available, which makes it easy to eliminate the other options. So it's B.

Correct answer is B. cEdge-4(config)# sdwan cEdge-4(config-sdwan)# interface GigabitEthernet2 cEdge-4(config-interface-GigabitEthernet2)# tunnel-interface cEdge-4(config-tunnel-interface)# tloc-extension-gre-to

it should be B

B is correct

B is the right one

B is correct : Configure a tunnel interface over which to run TLOC extensions (on IOS XE routers only). TLOC extensions let you extend a TLOC, over a GRE tunnel, to another router in the branch. sdwan interface interface-name tunnel-interface tloc-extension-gre-to extended-interface-ip-address https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-cr-book/config-cmd.html#r_tloc_extension_gre_to_11940.xml

Yes B is the correct answer https://www.cisco.com/c/en/us/support/docs/routers/sd-wan/220333-configure-layer-3-tloc-extension.html

Correct B vManage Feature Template For Cisco IOS XE routers only: Configuration ► Templates ► VPN Interface Ethernet Command Hierarchy sdwan interface interface-name tunnel-interface tloc-extension-gre-to extended-interface-ip-address

They phrased the question poorly. They ask which config is used to extend TLOC to another router. Said that way, no answer is correct. Option B is the only answer without fake syntax, so it has to be correct. But option B is not the config on the router that is extending the TLOC. It is the config on the other router, the one the TLOC is being extended to. Still, the other answers are wrong on either router because they have fake syntax.

Bis correct

B is right

B is the right answer

Official Cisco Documentation 1. Configure Layer 3 TLOC Extension Cisco has a dedicated support document called “Configure Layer 3 TLOC Extension” that explains the setup for TLOC extension via GRE. It specifically shows the setup and syntax used to extend the transport location over a GRE tunnel. Cisco 2. Cisco Catalyst SD-WAN Systems and Interfaces Configuration Guide (IOS XE) In the System Interfaces Guide, Cisco explains that for TLOC extension, you bind the service-side physical interface to the GRE tunnel by using this syntax under SD-WAN interface configuration mode: sdwan interface GigabitEthernetX/Y gre-interface tloc-extension-gre-to <peer-ip-address> This confirms that the correct command is tloc-extension-gre-to under a gre-interface, not under tunnel-interface or other variants. Cisco

Yeah, according to the documentation link they are actually quoting