Carlos Is Configuring a DHCP Server in His Organization

Multiple Choice

Carlos is configuring a DHCP server in his organization. Some of the computers in his organization contain manually configured IP addresses. Currently, he is setting up the new server to configure IP addresses for users who operate their mobile devices on the organization's network. Which of the following decisions should Carlos reevaluate ?

A) Carlos sets the subnet mask as 255.255.255.0.
B) Carlos provides a subnet delay of 100 milliseconds.
C) Carlos sets the lease duration to 7 days.
D) Carlos excludes certain IP addresses.