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An administrator receives a call from an end user reporting that the application they are using keeps giving them an error on port 23. Which of the following is being used？（）
- A、SSH
- B、Remote Desktop Connection
- C、Telnet
- D、VPN
参考答案
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单选题Which of the following would an administrator use to configure a server’s BIOS settings even if the OS crashes？（）A
VPNB
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单选题A user connects to the companys intranet server via a VPN connection from a small office / home office （SOHO） using the broadband service. One day， the user cannot successfully connect to the VPN and receives an error message that states "Username and password are invalid on the domain." Which of the following should be done to correct this problem？（）A
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Implement preventative measures.B
Close the issue.C
Document the outcome.D
Question other users to make sure they are not having the same issue.
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单选题An administrator receives a call from an end user reporting that the application they are using keeps giving them an error on port 23. Which of the following is being used？（）A
SSHB
Remote Desktop ConnectionC
TelnetD
VPN
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单选题You are developing an application that runs by using the credentials of the end user. Only users who are members of the Administrator group get permission to run the application. You write the following security code to protect sensitive data within the application.bool isAdmin=false； WindowsBuiltInRole role=WindowsBuiltInRole.Administrator； ...... if（!isAdmin） throw new Exception（"User not permitted"）； You need to add a code segment to this security code to ensure that the application throws an exception if a user is not a member of the Administrator group. Which code segment should you use？（）A
AB
BC
CD
D
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单选题A user is trying to use Remote Desktop to connect to another computer on the LAN. Theconnection fails. The technician opens up a command prompt and types the following: “telnetcomputernamE. 3389” and also gets the same error message. Which of the following is the MOSTlikely cause of this error, assuming that the OS firewall has been disabled?（）A
The antivirus software is blocking the incoming connection.B
The ISP is blocking Remote Desktop at their end.C
The RDP connection has been configured to use a non-standard port.D
The telnet service has not been installed.
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单选题You have a VPN server that runs Windows Server 2003 Service Pack 2 （SP2）. The VPN server supports only PPTP connections. A firewall protects the VPN server from the Internet. From a remote computer connected to the Internet， you attempt to connect to the VPN server. During the connection attempt， you receive a message that your user name and password are being verified. You then receive the following error message： “Error 721： The remote computer is not responding.”You need to ensure that you can establish a VPN connection to the VPN server from the Internet. What should you do？（）A
On the VPN server， enable LAN routing.B
On the VPN server， create a demand-dial interface.C
On the firewall， allow inbound connections that use TCP port 1701.D
On the firewall， allow inbound connections that use Generic Route Encapsulation （GRE） protocol 47.
考题
单选题A user has a computer that runs Windows XP Professional. The user attempts to connect to the computer by using a Remote Desktop Connection and receives the following error message: “The local policy of the system does not permit you to log on interactively.” You need to ensure that the user can log on to the computer by using a Remote Desktop Connection. What should you do?（）A
From the System settings, disable Remote Assistance.B
Add the user's account to the Remote Desktop Users group. C
From Windows Firewall, modify the scope of the Remote Desktop exception. D
Set the Remote Desktop Help Session Manager service Startup type to Automatic, and then start the service.
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