If the VRID of a HA pair is configured as 25. Which MAC address is most likely used for the virtual IP address?  

The DHCP server has assigned an address, but the client did not renew before the lease timer ended. What status will be listed for this address? 

How does an administrator obtain new NIOS releases?  

When configuring Authentication Policy, an administrator should always choose a group for "Assign users to this group if remote admin group cannot be found". 

When DHCP Failover Status is degraded, the DHCP service is not functioning.