You need to configure the DNS server to allow delivery of e-mail messages. Which four actions should you perform？（）A、Create a host （A） resource record for EX1.fourthcoffee.com on the internal DNS ServerB、Create a host （A） resource record for EX1.fourthcoffee.com on the external DNS ServerC、Create a host （A） resource record for EX3.fourthcoffee.com on the internal DNS ServerD、Create a host （A） resource record for EX3.fourthcoffee.com on the external DNS ServerE、Create a mail exchange （MX） resource record for EX1.fourthcoffee.com on the external DNS server. Set the preference to 10F、Create a mail exchanger （MX） resource record for EX1.fourthcoffee.com on the internal DNS server. Set the preference to 10G、Create a mail exchanger （MX） resource record for EX3.fourthcoffee.com on the external DNS server. Set the preference to 20H、Create a mail exchanger （MX） resource record for EX3.fourthcoffee.com on the internal DNS server. Set the preference to 20
You need to configure the DNS server to allow delivery of e-mail messages. Which four actions should you perform？（）
- A、Create a host （A） resource record for EX1.fourthcoffee.com on the internal DNS Server
- B、Create a host （A） resource record for EX1.fourthcoffee.com on the external DNS Server
- C、Create a host （A） resource record for EX3.fourthcoffee.com on the internal DNS Server
- D、Create a host （A） resource record for EX3.fourthcoffee.com on the external DNS Server
- E、Create a mail exchange （MX） resource record for EX1.fourthcoffee.com on the external DNS server. Set the preference to 10
- F、Create a mail exchanger （MX） resource record for EX1.fourthcoffee.com on the internal DNS server. Set the preference to 10
- G、Create a mail exchanger （MX） resource record for EX3.fourthcoffee.com on the external DNS server. Set the preference to 20
- H、Create a mail exchanger （MX） resource record for EX3.fourthcoffee.com on the internal DNS server. Set the preference to 20
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