Module 2: Deploy and manage DHCP > Unit: Implement DHCP Failover

Describe the DHCP failover implementation

How many DHCP servers can be part of a failover relationship?

Can a DHCP server have multiple failover relationships?

Is DHCP failover time sensitive?

In which 2 modes can DHCP failover be configured?

Describe DHCP failover - load balance mode

Describe DHCP failover - hot standy mode

Consider using DHCP failover - hot standy mode.

When the primary DHCP server goes down, it takes some time before the secondary DHCP server takes control of the address range. How is this period of time called?

When configuring DHCP failover - hot standby mode, a percentage of the addresses must be reserved for the standby server. What are these addresses used for?

What happens when DHCP servers in a DHCP failover implementation, loose communication with each other?

Consider DHCP servers in a DHCP failover implementation.

What do you do when DHCP servers are in a communication interrupted state?

Consider DHCP servers in a DHCP failover implementation.

What is the 'auto state switchover interval'?

Consider DHCP servers in a DHCP failover implementation.

Where is the 'shared secret' being used for?

Which firewall port is used by DHCP servers in a DHCP failover implementation for failover traffic?

Which 2 firewall rules are created during DHCP installation?