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单选题
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.
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更多 “单选题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.” 相关考题
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考题
单选题After a server has been installed into a rack， an administrator must ensure which of the following？（）A
Warm air flow is permitted through the front bezelB
The system is labeled so that it can be identifiedC
Verify the change control process can be implementedD
Determine the correct power requirements
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考题
单选题An administrator has just installed a new NIC into the server. The system POSTs fine and the NIC is recognized by the OS, but it does not receive an IP address. Which of the following is the MOST likely cause of this?（）A
The NIC is not on the HCL.B
The driver is incorrect on the server.C
The patch cable has not been seated properly.D
The NIC is not seated properly.
考题
单选题Your company has a network that has 100 servers. You install a new server that runs Windows Server 2008. The server has the Web Server （IIS） server role installed.After a week， you discover that the Reliability Monitor has no data， and that the Systems Stability chart has never been updated.You need to configure the server to collect the Reliability Monitor data. What should you do？（）A
Run the perfmon.exe /sys command on the server.B
Configure the Task Scheduler service to start automatically.C
Configure the Remote Registry service to start automatically.D
Configure the Secondary Logon service to start automatically.
考题
多选题A new array of hard drives has been added to an existing server; however, when the server is booted into the Windows OS the new drives fail to appear in My Computer. From which of the following locations can the new storage drives be added?（）AFormat commandBHypervisorCComputer ManagementDDisk ManagementEVirtual Center
考题
单选题Your company has a network that has 100 servers. You install a new server that runs windows server 2008. The server has the web server (IIS) role installed. You discover that the reliability monitor has no data, and that the system stablitiy share has never been updated. You need to configure the server to collect the reliability monitor data. What should you do?（）A
Run the perfmon.exe /sys command on the server.B
Configure the task scheduler service to start automatically.C
Configure the remote registry serice to start automatically.D
Configure the secondary login service to start automatically.
考题
单选题The technician has suspicions that a browser has been hijacked. Which of the following should the technician look for in this situation?（）A
A new default gateway has been setup.B
A new Internet shortcut has been added.C
A new web browser has been installed and is now the default.D
A proxy server has been enabled.
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