An implementation engineer is installing ECS and sees that node names are not resolving to the public IP address. Which command should they use to validate the ECS DNS configuration?
I would argue D is the correct answer. It allows you to check host name to IP resolution. Use answer A to check which DNS server you are using. Use B to check Rack ID and Rack Name. Use C to (possibly) check which IP addresses are configured. Possibly: because I am unsure if `ifconfig` is part of SLES.
A, /etc/resolv.conf is where you check (and edit) DNS
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