The Ezonexam network administrator has issued the "VTP password ezonexam" command on a Cisco device. What is the purpose of this command？
A. It allows two VTP servers to exists in the same domain, each configured with different passwords
B. It is the password required when promoting a switch from VTP client mode to VTP server mode
C. It is used to access the VTP server to make changes to the VTP configuration
D. It is used to validate the sources of VTP advertisements sent between switches
E. None of the above
微信支付 
支付宝支付