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Florida International University *

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2503

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Computer Science

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Apr 3, 2024

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2

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Name: _____ ________________________ Project 8-2 Calculate Subnets In this Module, you saw how to calculate subnets for both Class B and Class C networks. In this project, you work with a Class B private network. Complete the steps as follows: 1. Your employer is opening a new location, and the IT director has assigned you the task of calculating the subnet numbers for the new LAN. You’ve determined that you need 50 subnets for the Class B network beginning with the network ID 172.20.0.0. How many bits will you need to borrow from the host portion of the subnet mask to create the new subnets? 6 bits borrowed. 2. After the subnetting is complete, how many unused subnets will be waiting on hold for future expansion, and how many possible hosts can each subnet contain? 14 unused subnets will be waiting on hold for future expansion. 1022 possible hosts each subnet can contain. 3. What is the new subnet mask in dotted decimal notation? 255.255.252.0 4. Complete the following table: Calculate Subnets Subnet number Extended network prefix Range of host addresses Broadcast address 1 172.20.0.0 172.20.0.1 through 172.20.3.254 172.20.3.255 2 172.20.4.0 ___ 172.20.4.1 ______ through 172.20.7.254 172.20.7.255 3 172.20.8.0 172.20.8.1 through __ 172.20.11.254 _______ 172.20.11.255 4 172.20.12.0 172.20.12.1 to 172.20.15.254 172.20.15.25 5 5 172.20.16.0 172.20.16.1 to 172.20.19.254 172.20.19.25 5 50 172.20.196.0 172.20.196.1 to 172.20.199.254 172.20.199.2 55 5. What is the CIDR notation for this network? /22
6. What is the broadcast address of the subnet for the host at 172.20.6.139? 172.20.7.255 7. Is the host at 172.20.11.250 on the same subnet as the host at 172.20.12.3? How do you know?
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