How2pass.com Forums

Full Version: AN269
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Please review this question.

The answer I believe should be:

Correct choice:
Responds to a request for IP address to domain name resolution to the DNS server.


Why the other options are incorrect
  • “Serves requests over destination port 53.”
    ? This describes a technical detail of DNS transport (DNS typically uses port 53), not the lookup operation itself.

  • “DNS server pings the destination to verify that it is available.”
    ❌ DNS does not ping hosts or check availability.

  • “DNS server forwards the client to an alternate IP address when the primary IP is down.”
    ❌ This describes load balancing or failover behavior, not the fundamental DNS lookup process.

    Thanks,JJ