Explain about classes of IP addresses used in network layer.Find the class of the following addresses:a) 227.13.14.88b) 10.15.0.100c) 192.168.0.68d) 172.0.10.18

IP addresses are divided into five classes: A, B, C, D, and E. Each class has a range of valid IP addresses. The value of the first octet determines the class. Here's a brief overview:

• 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 is reserved for multicast groups.
• Class E: 240.0.0.0 to 254.255.255.254 is reserved for future use, or Research and Development Purposes.

Now, let's find out the classes of the given IP addresses:

a) 227.13.14.88: The first octet is 227, which falls in the range of Class D.

b) 10.15.0.100: The first octet is 10, which falls in the range of Class A.

c) 192.168.0.68: The first octet is 192, which falls in the range of Class C.

d) 172.0.10.18: The first octet is 172, which falls in the range of Class B.