The address pool of a DHCP server is configured with 172.21.121.0/25. The network administrator reserves 12 IP addresses for web servers. How many IP addresses are left in the pool to be assigned to other hosts?
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Last Updated: May 2, 2022
IT Exam Items Repository › Category: CCNA › The address pool of a DHCP server is configured with 172.21.121.0/25. The network administrator reserves 12 IP addresses for web servers. How many IP addresses are left in the pool to be assigned to other hosts?
The address pool of a DHCP server is configured with 172.21.121.0/25. The network administrator reserves 12 IP addresses for web servers. How many IP addresses are left in the pool to be assigned to other hosts?
Explanation: Calculate the maximum number of hosts available for the slash value and subtract the required static IP addresses required for the devices.
/24 = 254 hosts
/25 = 126 hosts
/26 = 62 hosts
/27 = 30 hosts
/28 = 14 hosts
Related exam: Switching, Routing, and Wireless Essentials (Version 7.00) - Available and Reliable Networks Exam
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