單項(xiàng)選擇題

An email server has been installed； however， the staff reports that they are unable to receive email from external email addresses， but they can email each other.
Which of the following is the MOST likely reason for this？（）

A. The company firewall is blocking SMTP ports.
B. The DHCP server is misconfigured.
C. The DNS server is only resolving internal name spaces.
D. The email server should be configured to resolve names by IP addresses.

你可能感興趣的試題

單項(xiàng)選擇題

Which of the following server types stores users’ home directory folders？（）

A.Application
B.File
C.Directory services
D.Print

單項(xiàng)選擇題

Which of the following is the BEST way to make sure the network printer is automatically installed when the user logs on？（）

A.Log onto the user’s computer as a local administrator and install the printer.
B.Make sure the user has permission to print to the printer.
C.Create and implement a logon script.
D.After the user has logged on， install the printer.

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

An email server has been installed； however， the staff reports that they are unable to receive email from external email addresses， but they can email each other. Which of the following is the MOST likely reason for this？（）

你可能感興趣的試題

Which of the following server types stores users’ home directory folders？（）

Which of the following is the BEST way to make sure the network printer is automatically installed when the user logs on？（）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

An email server has been installed； however， the staff reports that they are unable to receive email from external email addresses， but they can email each other.
Which of the following is the MOST likely reason for this？（）

Which of the following server types stores users’ home directory folders？（）

Which of the following is the BEST way to make sure the network printer is automatically installed when the user logs on？（）