![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-53/ti_inject-812ce.png)
Your network contains two DHCP servers named Server1 and Server2. Server1 and Server2 are located in the same subnet.You configure a split scope named Scope1 on the DHCP servers.You need to ensure that Server2 only responds to DHCP client requests if Server1 is unavailable.What should you modify?()