1. (2 pts) Consider classfull addressing and find the network ID and host ID for

Question

1. (2 pts) Consider classfull addressing and find the network ID and host ID for the following IP addresses: 75.0.0.13 100.2.4.1 220·102.229·10 224.3.2.1 2. (2 pts) Consider classless addressing and find the network address for the following address: IP address: 129.0.161.13 Netmask: 55.255.224.0 3. (2 pts) What is the sub-network address if the destination address is 191.51.22.70 and the subnet mask is 255.255.240.0? (2pts) What is the subnet mask for a class B network that was divided into the biggest number of subnets? 4. 5. (6 pts) A company is assigned the network address 200.0.0.0. The company needs 4 subnets. Design the subnets (i.e., find the subnet mask and for each subnet determine the following: subnet address, 1st and last host addresses, and broadcast address) (6 pts) A company is assigned the network address 189.1.0.0. The company needs 8 subnets. Design the subnets (i.e., find the subnet mask and for each subnet determine the following: subnet address, 1st and last host addresses, and broadcast address) 6.

Explanation / Answer

1. Below are the class details:-

a) 175.0.0.13

its a class B address So network ID is 175.0 and host id is 0.13

b) 100.2.4.1

its a class A address so, network id is 100 and host id is 2.4.1

c) 220.102.229.10

Its a class C address so, network id is 220.102.229 and host id is 10

d) 224.3.2.1

Its a class D multicast address, So there is no host id

2. Here we do AND of ip address and mask , so network address is 129.0.160.0

3.Similar to q.2 the subnetwork address is 191.51.16.0

4. Maximum possible subnets of class B are 16382 with 2 hosts per subnets and the mask for it are 255.255.255.252

Class A 1.0.0.1 to 126.255.255.254 Supports 16 million hosts on each of 127 networks. Class B 128.1.0.1 to 191.255.255.254 Supports 65,000 hosts on each of 16,000 networks. Class C 192.0.1.1 to 223.255.254.254 Supports 254 hosts on each of 2 million networks. Class D 224.0.0.0 to 239.255.255.255 Reserved for multicastgroups. Class E 240.0.0.0 to 254.255.255.254 Reserved for future use, or Research and Development Purposes.

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