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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.
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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.
考题
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.
考题
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.
考题
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 firewallB
Open port 1723 on the firewallC
Open port 3389 on the firewallD
Open port 6000 on the firewall
考题
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
考题
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.
考题
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 balancingB
High availabilityC
Virtual machineD
Reverse proxy
考题
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.
考题
单选题Which of the following mitigation techniques would an administrator apply to a device in order torestrict remote access?（）A
Disable TELNETB
Disable IGMP snoopingC
Enable TELNET but not SSLD
Disable ICMP/ping on device
考题
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.
考题
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.
考题
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
iptraceB
nslookupC
netstatD
traceroute
考题
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 configB
appcmd stop apppoolC
appcmd start apppoolD
appcmd set apppool
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