单项选择题
A.RG-6 B.STP C.CAT3 D.UTP
Which of the following protocols uses UDP to transfer f...
单项选择题Which of the following protocols uses UDP to transfer files?（）
A.FTP B.SFTP C.SMTP D.TFTP
Which of the following is used to serve as an emergency...
单项选择题Which of the following is used to serve as an emergency backup line to troubleshoot a broadbandconnection on many routers?（）
A.DSL B.POTS C.VDSL D.Smart jack
An administrator wants to test the network MTU. Which o...
单项选择题An administrator wants to test the network MTU. Which of the following commands allows differentsize packets to be sent?（）
A.netstat B.traceroute C.nbtstat D.ping
