CCNP系列認(rèn)證CCNP(642-813)單項(xiàng)選擇題每日一練(2019.01.15)

An attacker is launching a DoS attack on the Company network using a hacking tool designed to  exhaust the IP address space available from the DHCP servers for a period of time.
 Which  procedure would best defend against this type of attack？ （）

If G1/0/1 on DS1 is shutdown， 
what will be the current priority value of the Vlan105’s group on DS1 ？（）

You work as a network administrator at， You have been asked to configure 802.1x port-based authentication. You notice that the client workstation is not compatible with 802.1x port-based authentication.
 What supported authentication server should be chosen？（）