单选题Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are getting the following error message：  telnet： connect： A remote host refused an attempted connect operation   Which of the following could be 

题目
单选题
Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are getting the following error message：  telnet： connect： A remote host refused an attempted connect operation   Which of the following could be the cause of this problem？（）
A

The routing table on the AIX server is incorrect.

B

The IP address on the network adapter is incorrect.

C

The portmap daemon is not running on the AIX server.

D

The inetd daemon is not running on the AIX server.

相似考题

1.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.

2.An administrator is in charge of several remote servers in Japan. Users call and complain they cannot connect to the company’s resources located on those servers. Which of the following commands would allow the administrator to verify the servers are running？（）A、pingB、netstatC、nbtstatD、telnet

3.Which of the following BEST describes server virtualization？（）A、 A single logical server operating on multiple physical servers.B、 Applications hosted on a single server and deployed to multiple users.C、 Multiple servers used to host applications for multiple users.D、 Multiple logical servers operating on the same physical server.

4.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

参考答案和解析
正确答案： B
解析： 暂无解析
更多“单选题Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are getting the following error message：  telnet： connect： A remote host refused an attempted connect operation   Which of the following could be ”相关问题

  • 第1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

    正确答案:D

  • 第2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3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

    正确答案:B

  • 第4题：

    A technician would like to ensure that when users connect to a web server in a server farm， they connect to the server with the lowest CPU utilization. Which of the following technologies would accomplish this？（）

    • A、Load balancing
    • B、High availability
    • C、Virtual machine
    • D、Reverse proxy

    正确答案:A

  • 第5题：

    Your tnsnames.ora file has the following entry for the service alias ORCL：  ORCL =  （DESCRIPTION =  （ADDRESS = （PROTOCOL = TCP） （HOST = 10.156.24.216） （PORT = 1521））   （CONNECT_DATA =  （SERVER = DEDICATED） （SERVICE_NAME = orcl.oracle.com）   ）   ）   The TNSPING command executes successfully when tested with ORCL but you are not able to connect to the database instance with the following command：  SQL> CONNECT scott/tiger@orcl  What could be the reason for this？（）

    • A、The listener is not running at the server.
    • B、The TNS_ADMIN environmental variable is set to a wrong value.
    • C、The orcl.oracle.com database service is not registered with the listener.
    • D、The DEFAULT_DOMAIN parameter is set to a wrong value in the SQLNET.ORA file.

    正确答案:C

  • 第6题：

    You have the Web Server （IIS） role installed on a server that runs Windows Server 2008.   You make changes to the configuration of an application named APP1. Users report that the application fails. You examine the event log and discover the following error message：  503 Service Unavailable.  You need to ensure that users are able to connect to APP1.  Which command should you run at the command prompt on the server？（）

    • A、appcmd set config
    • B、appcmd stop apppool
    • C、appcmd start apppool
    • D、appcmd set apppool

    正确答案:C

  • 第7题：

    单选题
    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are getting the following error message：  telnet： connect： A remote host refused an attempted connect operation   Which of the following could be the cause of this problem？（）
    A

    The routing table on the AIX server is incorrect.

    B

    The IP address on the network adapter is incorrect.

    C

    The portmap daemon is not running on the AIX server.

    D

    The inetd daemon is not running on the AIX server.


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    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： C
    解析： 暂无解析

  • 第9题：

    单选题
    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： A
    解析： 暂无解析

  • 第10题：

    单选题
    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are  getting  the  following  error  message：  telnet：  connect：  A remote  host  refused  an  attempted  connect   operation Which of the following options could be the cause of this problem（）
    A

    The routing table on the AIX server is incorrect.

    B

    The IP address in the /etc/hosts file is incorrect，

    C

    The portmap daemon is not running on the AIX server.

    D

    The inetd daemon is not running on the AIX server.


    正确答案： C
    解析： 暂无解析

  • 第11题：

    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.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    A remote user is trying to telnet to the production server. The session is getting a timeout error. Which command should the user issue to verify the network connection？（）
    A

    iptrace

    B

    nslookup

    C

    netstat

    D

    traceroute


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are getting the following error message：  telnet： connect： A remote host refused an attempted connect operation   Which of the following could be the cause of this problem？（）

    • A、The routing table on the AIX server is incorrect.
    • B、The IP address on the network adapter is incorrect.
    • C、The portmap daemon is not running on the AIX server.
    • D、The inetd daemon is not running on the AIX server.

    正确答案:D

  • 第14题：

    A user is unable to connect to the network. A network technician is able to determine that there is a problem on the switch. All other users on that switch are able to connect successfully to the network. Which of the following is a probable cause？（）

    • A、Switching loop is occurring on the switch.
    • B、Wrong subnet mask on the switch.
    • C、Incorrect SNMP settings on the switch.
    • D、Port is misconfigured on the switch.

    正确答案:D

  • 第15题：

    Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?（）

    • A、Ping
    • B、Arp
    • C、Dig
    • D、telnet

    正确答案:D

  • 第16题：

    A remote user is trying to telnet to the production server. The session is getting a timeout error. Which command should the user issue to verify the network connection？（）

    • A、iptrace
    • B、nslookup
    • C、netstat
    • D、traceroute

    正确答案:D

  • 第17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18题：

    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are  getting  the  following  error  message：  telnet：  connect：  A remote  host  refused  an  attempted  connect   operation Which of the following options could be the cause of this problem（）

    • A、The routing table on the AIX server is incorrect.
    • B、The IP address in the /etc/hosts file is incorrect，
    • C、The portmap daemon is not running on the AIX server.
    • D、The inetd daemon is not running on the AIX server.

    正确答案:D

  • 第19题：

    单选题
    Which of the following BEST describes server virtualization？（）
    A

     A single logical server operating on multiple physical servers.

    B

     Applications hosted on a single server and deployed to multiple users.

    C

     Multiple servers used to host applications for multiple users.

    D

     Multiple logical servers operating on the same physical server.


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    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


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    A technician would like to ensure that when users connect to a web server in a server farm， they connect to the server with the lowest CPU utilization. Which of the following technologies would accomplish this？（）
    A

    Load balancing

    B

    High availability

    C

    Virtual machine

    D

    Reverse proxy


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following mitigation techniques would an administrator apply to a device in order torestrict remote access?（）
    A

    Disable TELNET

    B

    Disable IGMP snooping

    C

    Enable TELNET but not SSL

    D

    Disable ICMP/ping on device


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    A user is unable to connect to the network. A network technician is able to determine that there is a problem on the switch. All other users on that switch are able to connect successfully to the network. Which of the following is a probable cause？（）
    A

    Switching loop is occurring on the switch.

    B

    Wrong subnet mask on the switch.

    C

    Incorrect SNMP settings on the switch.

    D

    Port is misconfigured on the switch.


    正确答案： A
    解析： 暂无解析

  • 第24题：

    单选题
    You have the Web Server （IIS） role installed on a server that runs Windows Server 2008.   You make changes to the configuration of an application named APP1. Users report that the application fails. You examine the event log and discover the following error message：  503 Service Unavailable.  You need to ensure that users are able to connect to APP1.  Which command should you run at the command prompt on the server？（）
    A

    appcmd set config

    B

    appcmd stop apppool

    C

    appcmd start apppool

    D

    appcmd set apppool


    正确答案： A
    解析： 暂无解析

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