Anemailserverhasbeeninstalled;however,thestaffreportsthattheyareunabletoreceiveemail fromexternalemailaddresses,buttheycanemaileachother.WhichofthefollowingistheMOSTlikely reasonforthis?()

A.ThecompanyfirewallisblockingSMTPports. B.TheDHCPserverismisconfigured. C.TheDNSserverisonlyresolvinginternalnamespaces. D.TheemailservershouldbeconfiguredtoresolvenamesbyIPaddresses.

时间:2023-09-20 05:24:27

相似题目