Quiz: networking between hosts

Question 5 of 10

Several correct answers

From `lab-node1` a request to the site on `lab-node2` waits and gives up on a timeout, and the `lab-node1` table is clean. Where can the cause be?

No listener on lab-node2.
The server name in the client's /etc/hosts.
A filter on lab-node2.
The route back to the client on lab-node2.

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