單項選擇題

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.

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美 国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

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？（）

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

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