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N10-009 · Question #4
N10-009 Question #4: Real Exam Question with Answer & Explanation
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Submitted by deeparc· Mar 6, 2026Describe Cloud Concepts
Question
A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the engineer have done to prevent the issue from occurring?
Options
- AChange the email client configuration to match the MX record.
- BReduce the TTL record prior to the MX record change.
- CPerform a DNS zone transfer prior to the MX record change.
- DUpdate the NS record to reflect the IP address change.
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