When you add a custom domain to Office 365, you need to verify that you own the domain. You can do this by adding either an MX record or a TXT record to the DNS for that domain.
Note:
There are several versions of this question in the exam. The question has two possible correct answers:
Text (TXT)
Mail exchanger (MX)
incorrect answer options you may see on the exam include the following:
Chosen Answer:
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