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 addressB、FTP program is not workingC、Port 21 is blockedD、The FTP site is down
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
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单选题Under which of the following circumstances would a technician use IPCONFIG /RENEW?（）AAfter an unsuccessful rebootBIf a user’s IP address has been spoofedCAfter using IPCONFIG /RELEASEDIf the computer has an ARP address conflict
单选题An administrator is trying to connect to an RSA-II adapter using the default IP address found in the installation manual of 192.168.70.125. The Web browser returns a "page cannot be displayed" message， and a ping returns a "request timed out" message. Which of the following is the most likely cause of the problem？（）AThe RSA II adapter has obtained a DHCP assigned address.BThe RSA II adapter requires independent power to function.CThe Class C IP address space is not being bridged on the network.DThe RSA II adapter needs to be configured using a serial connection.
单选题A user reports they cannot access the network share folder， the users workstation is configured to use automatic IP. When the administrator checks the IP address the response returns as 169.254.0.5. Which of the following should the administrator verify？（）A That there are no DHCP relay serversB That the user account on Active Directory is not lockedC That the network card driver is not installed incorrectlyD The network connection is functioning
单选题All users within an office are wirelessly connected to a network, except one user that has a valid connection on a leased IP address in a different range. Which of the following is a possible cause of the user having a different IP address range?（）AThe wireless access point is using MAC address filteringBThe user has connected to a nearby wireless access point from another officeCThe user has configured the wireless settings with the wrong encryption typeDThe wireless access point has SSID broadcast disabled
单选题A user is attempting to access a website but is getting a ‘Page cannot be displayed’ error. The technician checks the IP address of the computer and sees that it has been assigned 169.254.10.70. Which of the following is the MOST likely cause?（）AThe device is located behind a firewall.BThe network card is disabled.CThe device is not configured for DHCP.DThe device cannot locate a DHCP server.
单选题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?（）AInvalid IP addressBFTP program is not workingCPort 21 is blockedDThe FTP site is down
单选题A user states that they cannot access a network shared drive. The technician has verified that the clients network cable is good. The IP address of the machine is 169.254.10.15. Which of the following is the cause of the problem？（）AThe WINS server is not resolving names properly.BThe DNS server is not resolving names.CThe DHCP server is out of IP address leases.DThe hosts file is corrupted.