问题:
A . Create two CNAME records that have the same name.Create one MX record that uses the FQDN of the CNAME records.Assign a priority of 0 to the MX record.
B . Create two MX records.Assign the MX record for Edge1 a priority of 5.Assign the MX record for Edge2 a priority of 1.
C . Create two A records that use the same name.Create one MX record that uses the FQDN of the A record.Assign a priority of 0 to the MX record.
D . Create two MX records.Assign the MX record for Edge1 a priority of 1.Assign the MX record for Edge2 a priority of 5.
● 参考解析
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