CompTIA认证考试
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
题目
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
相似问题和答案
第1题：
A user receives a call from someone reporting to be from the help desk who asks for their password. The user discovers later that the caller did not work for the help desk. Which of the following describes this type of exploit?（）
- A、Phishing scam
- B、Social engineering
- C、Man-in-the-Middle
- D、Shoulder surfing
正确答案:B
第2题：
A TCP/IP application receives files from a remote machine. The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）
- A、 Increase the size of thewall
- B、 Increase the size of sb_max
- C、 Increase the size of tcp_recvspace
- D、 Increase the size of tcp_sendspace
正确答案:C
第3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.
第4题：
An administrator receives a call from a user who is unable to receive email. After troubleshooting the administrator is able to resolve the issue and verify that user is able to access email again. Which of the following is the NEXT step that the administrator should take？（）
- A、 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.
正确答案:C
第5题：
Your company has a single active directory domain. The company network is protected by a firewall. Remote users connect to your network through a VPN server by using PPTP. When the users try to connect to the VPN server， they receive the following error message： Error 721： The remote computer is not responding. You need to ensure that users can establish a VPN connection. What should you do？ （）
- A、Open port 1423 on the firewall
- B、Open port 1723 on the firewall
- C、Open port 3389 on the firewall
- D、Open port 6000 on the firewall
正确答案:B
第6题：
Which of the following can be used to manage a servers BIOS remotely？ （）
- A、 Remote desktop software
- B、 Dedicated management card
- C、 Telnet session
- D、 IP KVM
- E、 VPN
正确答案:B,D
第7题：
A banking customer has a firewall between their AMM and the remote console which is used to configure the chassis and blades. Due to security concerns, port 80 (http) is being blocked, denying any http access to the AMM. Which of the following would facilitate remote communication with the AMM using a GUI interface?（）
- A、port 443 - SSL connection
- B、port 8080 ?http
- C、port 22 - SSH CLI
- D、port 427 - SLP connection
正确答案:A
第8题：
You have a stand-alone server named Server1 that runs Windows Server 2003 Service Pack (SP2).A user attempts to connect to the server by using Remote Desktop Connection and receives the following error message.You need to ensure that the user can log on to the server by using Remote Desktop Connection.What should you do?（）
A. On Server1, modify the Remote Control settings for the user account.
B. On Server1, modify the Remote Access Permission settings for the user account.
C. Instruct the user to log on to Server1 locally and then to change her password.
D. Instruct the user to log on to another computer and then connect to Server1 by using Remote Desktop Connection.
第9题：
Which of the following would an administrator use to configure a server’s BIOS settings even if the OS crashes？（）
- A、 VPN
- B、 KVM over IP
- C、 Telnet
- D、 Remote Desktop
正确答案:B
第10题：
An administrator receives a call from a user who is unable to receive email. After troubleshooting the administrator is able to resolve the issue and verify that user is able to access email again. Which of the following is the NEXT step that the administrator should take?（）
- A、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
正确答案:C