单选题A company finished upgrading the wireless encryption to WPA2 Enterprise. The administrator receives a call from a user who is unable to connect to the company wireless. Which of the following is MOST likely causing the connection problem?（）A The laptop

第1题：

A client states they are receiving poor signal strength on their wireless Internet connection. Which of the following is MOST likely causing the interference?（）

• A、Cordless phones
• B、Drywall
• C、Access points
• D、Microwaves
• E、Fluorescents lights

第2题：

A user is unable to access the company website on a laptop. A network technician verifies that theuser can access other Internet pages. According to network troubleshooting methodology, which of the following steps should be taken NEXT?（）

• A、Remotely connect to the user's laptop and review the network configuration settings
• B、Ping the web server from inside the network to ensure it is still up and running.
• C、Check to make sure the company's website is accessible from the Internet.
• D、Ensure the Ethernet cable is securely plugged into the user's laptop

第3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.

第4题：

An administrator receives a call from a user who is unable to receive email. After checking the workstation and email settings the administrator is still not able to determine the problem.  Which of thefollowing is the NEXT step that the administrator should take？ （）

• A、 Create an action plan.
• B、 Escalate the issue.
• C、 Reboot the mail server.
• D、 Document the solution.

第5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、Call the corporate help desk to have the VPN server rebooted
• B、Re-enter the username and password in the VPN connection and reconnect
• C、Call the broadband Internet provider to replace the SOHO router with a newer model
• D、Ping the corporate VPN server to ensure it is online

第6题：

A user reports sporadic connectivity with their wireless connection. A technician determines the wireless speed reported by the laptop to be 1Mbps. Which of the following is the MOST likely cause of this issue?（）

• A、The client does not support 802.11n
• B、Incorrect frequency on the client is being used
• C、Incorrect encryption on the AP
• D、The client distance from the AP

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第13题：

A user is unable to connect to the company's intranet server by FQDN, but can connect by IP address. Other users are not having a problem. An administrator verifies that the user can successfully ping the server by IP address and can properly resolve the FQDN using nslookup. The problem is persisting after running ipconfig /flushdns. Which of the following should the administrator do NEXT?（）

• A、Examine the Imhost file.
• B、Flush the cache on the DNS server.
• C、Flush the cache on the WINS server.
• D、Examine the hosts file

第14题：

A user has reported that they cannot access the company FTP site. The user states that they are using the IP address that was given to them “74200.92.105”. Which of the following is MOST likely the problem?（）

• A、Invalid IP address
• B、FTP program is not working
• C、Port 21 is blocked
• D、The FTP site is down

第15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

第16题：

When verifying a new wireless installation the administrator is unable to see a wireless signal withany wireless laptop. The MOST likely problem is:（）

• A、The SSID is not set to broadcast
• B、An incorrect channel is being used
• C、Incorrect client security settings are configured
• D、Incorrect client configuration on the laptops

第17题：

A company finished upgrading the wireless encryption to WPA2 Enterprise. The administrator receives a call from a user who is unable to connect to the company wireless. Which of the following is MOST likely causing the connection problem?（）

• A、The laptop is missing the software supplicant
• B、The access point SSID is hidden.
• C、The laptop only supports TKIP and AES encryption,
• D、The access point is on the wrong channel.

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