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The question in the image asks about testing the route between two IP addresses using a command. The correct answer highlighted is:

B. ip route get 192.163.1.40 from 10.0.2.15

Explanation:

1. ip route get Command:

• This command retrieves the specific routing information for a packet destined to a given IP address (in this case, 192.163.1.40) when originating from another IP address (here, 10.0.2.15).

1. Why Other Options are Incorrect:

• A (route -e get):
  • route commands are legacy and do not include a -e or get option.
• C (ip route 192.169.1.40):
  • This doesn’t use the get keyword, so it will not fetch a specific route.
• D (route -n):
  • This shows the entire routing table in numeric format but doesn’t test specific routes.

The ip route get command is modern, more specific, and recommended for testing individual routes.