Refer to the exhibit. Which statement is true about the configuration?()<br /> <img src="https://nimg.ppkao.com/2018-07/yiyu/2018073015215457205.jpg?sign=27a0b3e1b44a54db67216a1c767aaf1b&t=62d72690" />
A、Hosts belonging to DHCP pool 1 and pool 2 will retain their IP settings for 30 hours before they must renew.
B、Hosts will receive IP settings from pool 1 until the addresses run out, and then hosts will receive the settings from pool 2.
C、Hosts in the 10.10.20.0/24 subnet will u se 10.10.20.50 as its DNS server.
D、DHCP pool 0 needs to have the ip dhcp excluded - address command to exclude the default router and DNS servers.