Refer to the exhibit. A secondary route is required on router R1 to pass traffic to the LAN network on R2 if the primary link fails. Which command must be entered to configure the router?

While the administrative distance of 92 suggests a floating static route, the next-hop IP address 10.0.0.7 is incorrect or the subnet mask 255.255.255.240 does not match the target LAN network's CIDR as implied by the correct answer.

The subnet mask 255.255.255.240 is incorrect for the 10.0.2.0 LAN network, as the correct answer uses 255.255.255.248.

Using 'null0' as the next hop blackholes traffic to the destination network, which is unsuitable for passing traffic to a live LAN network on R2.

Option D correctly specifies a floating static route to the 10.0.2.0/29 network on R2, using 10.0.0.6 as the next-hop IP address. The administrative distance of 91 ensures this route is only used if a primary route with a lower administrative distance, such as a directly connected route or another static route with a lower AD, becomes unavailable.