Complete the following steps to practice calculating a supernet: 1. Starting wit
ID: 3823561 • Letter: C
Question
Complete the following steps to practice calculating a supernet: 1. Starting with the network ID 192.16.20.0/24, what is the default Class C subnet mask for this network? Write this information both in decimal and in binary. 2. How many additional network bits must be used for host information in order to have about 2000 hosts per supernet? Use the same formula you learned for calculating number of hosts on a subnet. Write the new supernet mask in binary and in decimal notation. 3. What is the CIDR notation for the network ID now?Explanation / Answer
1. The default subnet for class C for all network is 255.255.255.0 = 11111111.11111111.11111111.00000000
2. We need a total of 8 Class C network in order to have 2000 hosts.
i.e /24 can have total 254 host. The rule is that it should always be in powers of 2. so to get 2000 hosts, we need 8 Class C classes.
The new subnet is 255.255.248.0=11111111.11111111.11111000.00000000
3. The CIDR Id now is /21.