7. IP addresses are of 32-bits IP addresses have two portions A . Network Portion B . Host Portion
8. Example 042 - 7706570 042 = is network portion and it remains same throughout the network. 7706570 = is host portion and it varies from host to host.
9. Range Of Decimal Values An IP address is expressed as Four decimal values in the range of 0 to 255 Dotted Decimal Notations These decimal values each represents Eight bits of the 32-bits address, known as an OCTET . This is called Dotted Decimal Notation. Example 155.127.231.124
18. No Communication Occurred Q: When Two Computers are connected then Communication Occurred ? We Should have to follow some rule and regulations
19. IP Address 5.1.1.1 Subnet Mask 255.0.0.0 Network ID 5.0.0.0 IP Address 5.1.1.2 Subnet Mask 255.0.0.0 Network ID 5.0.0.0 Communication Will Start Q : When IP addresses are of same Class and Network ID are same then will Communication Start ? Communication will be occurred when IP are of same Classes and their Network ID are Same of both computers Class A Class A
20. IP Address 6.1.1.1 Subnet Mask 255.0.0.0 Network ID 6.0.0.0 IP Address 5.1.1.2 Subnet Mask 255.0.0.0 Network ID 5.0.0.0 No Communication will Start Q: When IP addresses are of same Class but Network ID are Different will Communication Start ? When ever Two Computers are connected Back to Back and their Network ID are not same Communication will not be occurred even IP are of same Classes. Class A Class A Because
22. Routers are Used To Communicate Different Networks
23. IP Address 6.1.1.1 Subnet Mask 255.0.0.0 Network ID 6.0.0.0 IP Address 5.1.1.2 Subnet Mask 255.0.0.0 Network ID 5.0.0.0 Now Communication will Start Communication will because ROUTER are used to Communicate Different Networks Class A Class B Because