Which of the following Linux commands displays the local routing table?

The command that displays the local routing table in a Linux environment is indeed the one that corresponds with the selected choice. The netstat -r command provides detailed information about the routing table, including the kernel's routing entries, the destination networks, gateways, and interface information.

This command is particularly useful for network diagnostics and troubleshooting, as it allows you to see how the system routes packets to different networks. The displayed information helps in understanding the default routes, connected routes, and any other routes that have been configured on the system.

The other options provided do not serve this purpose. For instance, while netstat -i displays network interfaces and their statistics, it does not give routing table details. The dig command is used for DNS queries and cannot display routing information, while netstat -dir is not a valid command in this context. Hence, the selected answer accurately reflects the command designed for viewing the routing table in Linux.