Luc has installed Ansible and is trying to get it working correctly, but cannot seem to make it communicate with the various nodes that he wants to use it on. Which of the following is the most likely issue?
A) The port for YAML is not open on the firewall.
B) The nodes are all offline.
C) The agent has not been installed on the nodes yet.
D) Port 22 is not open on the firewall.

Question

Quizplus · Accepted Answer

Ansible communicates with nodes using SSH by default, which operates over port 22. If port 22 is not open on the firewall, Ansible would not be able to communicate with the nodes. Ansible does not require an agent to be installed on the nodes (eliminating C), and it does not use a specific port for YAML (eliminating A). While B could be a potential issue, D is the most likely and common issue related to communication problems with Ansible.

Luc Has Installed Ansible and Is Trying to Get It