Exam MS-100 topic 2 question 63 discussion

DRAG DROP -
You have a Microsoft 365 subscription and a DNS domain. The domain is hosted by a third-party DNS service.
You plan to add the domain to the subscription.
You need to use Microsoft Exchange Online to send and receive emails for the domain.
Which type of DNS record should you add to the DNS zone of the domain for each task? To answer, drag the appropriate records to the correct tasks. Each record may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Select and Place:

Suggested Answer:
Box 1: MX -
When you update your domain's MX record, all new email for anyone who uses your domain will now come to Microsoft 365.

Box 2: CNAME -
Add CNAME records to connect other service. You can add CNAME records for each service that you want to connect.

Box 3: TXT -
Add or edit an SPF TXT record to help prevent email spam
Reference:
https://docs.microsoft.com/en-us/microsoft-365/admin/get-help-with-domains/create-dns-records-at-any-dns-hosting-provider?view=o365-worldwide