ANSWER KEY · SC-00C9CWS

IPv4 foundations — session 3

Variant code: LEARNER-01 · 24 points

Conventional LAN subnets. Network and broadcast addresses are reserved. One point per correct answer.

1. 10.202.230.111/25

Network address10.202.230.0
Broadcast address10.202.230.127
Subnet mask255.255.255.128
First usable host10.202.230.1
Last usable host10.202.230.126
Usable hosts126

2. 10.121.249.218/10

Network address10.64.0.0
Broadcast address10.127.255.255
Subnet mask255.192.0.0
First usable host10.64.0.1
Last usable host10.127.255.254
Usable hosts4194302

3. 10.224.87.242/13

Network address10.224.0.0
Broadcast address10.231.255.255
Subnet mask255.248.0.0
First usable host10.224.0.1
Last usable host10.231.255.254
Usable hosts524286

4. 10.12.46.38/22

Network address10.12.44.0
Broadcast address10.12.47.255
Subnet mask255.255.252.0
First usable host10.12.44.1
Last usable host10.12.47.254
Usable hosts1022

Subnet Classroom by 2059 · Original practice material · Independent of Cisco