N10-009 Question #249: Real Exam Question with Answer & Explanation

Question

A company is moving to a hybrid cloud model. As part of this move the mail server will be moved to the cloud. The systems administrator needs to ensure the mail server continues to receive email. Which of the following types of DNS records should the systems administrator update?

Options

• ANS
• BPTR
• CMX
• DA

Explanation

To ensure continuous email reception after moving a mail server to the cloud, the systems administrator must update the Mail Exchanger (MX) DNS record.

Common mistakes.

• A. An NS (Name Server) record indicates the authoritative DNS servers for a domain, which should remain the same unless the entire DNS hosting changes, not just a mail server location.
• B. A PTR (Pointer) record is used for reverse DNS lookups, mapping an IP address back to a domain name, and is not directly involved in directing incoming email.
• D. An A (Address) record maps a domain name to an IPv4 address; while the mail server itself might have a new A record, updating the MX record is specifically what directs email traffic for the domain.

Concept tested. DNS MX record purpose

Reference. https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/dns-record-types

No community discussion yet for this question.