An utility to test the availability of Internet Application.
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Just like ‘ping’ to test the IP layer availability, a small program should be designed,
developed, to test the availability of Internet Applications like, WWW/FTP/TFTP/DNS/DHCP/SNMP.
The utility could be in a CLI or GUI user interface.
The input is the FQDN or IP address of the target computer for testing.
The output of the utility shall contain the following
- The name of your program
- The date/time your program started
- The availability of the Internet Application services
- The time used to get the service, just like a ‘ping’, such as www-ping, ftp-ping, dhcp-ping, …

Example:
c:\>dhcp-ping 202.126.3.16
DHCP-PING (ver.1.2) is an utility to test the availability of DHCP service.
The current date/time: 2006/11/06 10:22:54
DHCP service is available from server [202.126.3.16].
The response time is 305ms.
c:\>

原题就是这样了，哪位蝈蝈能帮忙看一下，谢谢了

这个事比较好做的，DHCP协议的嘛，你看看DHCP程序，只需要发送一个请求的分组就可以了