单项选择题
A.PPPoE B.RAS C.IPSec D.MSCHAP
A router that takes the workstations internal IP addres...
单项选择题A router that takes the workstations internal IP address and changes it to another IP address whenit sends the data outside of the network is an example of which of the following?（）
A.NAT B.IDS C.NMAP D.DMZ
Which of the following protocols is commonly used for V...
单项选择题Which of the following protocols is commonly used for VoIP technology?（）
A.Telnet B.SMTP C.SIP D.SNMP
An administrator is experiencing availability issues on...
单项选择题An administrator is experiencing availability issues on a Linux server. The administrator decides tocheck the server for an IP address conflict on the server. Which of the following commands should the administrator use?（）
A.traceroute B.tracert C.ifconfig D.ipconfig
