单选题In a TCP/IP network， which of the following commands utilizes the ICMP protocol？（）A rcpB tftpC pingD rpcinfo
题目
单选题
In a TCP/IP network， which of the following commands utilizes the ICMP protocol？（）
A
rcp
B
tftp
C
ping
D
rpcinfo
rcp
tftp
ping
rpcinfo