Network+ N10-009 simulation
IPv4 Subnetting Practice
Calculate the network address, broadcast address, usable host range, and host capacity for generated exam-style scenarios.
Subnet challenge
Answers use dotted-decimal IPv4 notation.
Score: 0/0
Streak: 0
Difficulty
Given host address
Network bits Host bits
Subnetting method
- Convert the CIDR prefix into a subnet mask.
- Use the first host octet to find the subnet block.
- The first address is the network; the last is the broadcast.
- For /30 and larger traditional subnets, subtract two addresses for usable hosts.