How to find FQDN for a node in HDPCA practice exam?

[#1]

I launched the HDPCA practice exam in AWS and the there is a task to add 'node1'.

While adding a new node using ambari, I have to mention the FQDN.

This detail is not mentioned in the exam task html file.

How do I find FQDN ?

P.S. I am able to ssh into node1.

Update: I tried using the following command to get fqdn

hostname --fqdn

This command also gave me the response as "node1". When I mention node1 as the FQDN in Ambari, I get the following warning message:

"node1 is not a valid FQDN. Do you want to continue ?"

This error message is confusing me regarding the FQDN.

When I ignored the above warning, after install, the host check is failing.

[#2 · Accepted solution]

As it turns out, the command to find out FQDN is

hostname --fqdn

Even though I ignored all the warning and proceeded to next steps to add the node to the cluster, in the end it all worked well and post intall test was successful.

So I guess this can be ignored for practice exam.