Quiz: networking between hosts

One correct answer

Which repair note can another administrator check and repeat?

• A "Changed a few settings on the server, and the page finally opened from node1."
• B "Restarted nginx, the network and the filter on node2 one by one; it seems to work after that."
• C "Tested port 8080 from node1 instead of 80 — no errors there, so the network is fine."
• D "node2: nginx listened on 127.0.0.1:80, a filter dropped 80; fixed both, from node1 curl -I http://node2/ gives 200."