When configuring split scopes for DHCP$,$ which of the following is the traditional percentage split of the scope range?

$60\%$ to the primary server, $40\%$ to the secondary server

$50\%$ to the primary server, $50\%$ to the secondary server

$70\%$ to the primary server, $30\%$ to the secondary server

$80\%$ to the primary server, $20\%$ to the secondary server