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Network ID, TCP/IP, IPv4, & IPv6 | Significance in Data Transmission

 

Significance of Network ID in data transmission

Last Updated: 7/1/22

To transfer data packets from one computer to another, some protocol is used. The procedure is analogous to postal mail delivery. If you want to send a letter to a friend who lives 500 miles away, the corresponding office will handle the backend process of getting your letter to your friend.

TCP/IP is a popular internet transmission protocol for transferring data packets from one computer to another. The network ID is the destination network's address as well as the host's address. TCP/IP transports the following data:

  • Source address 
  • Destination address (network address + host address)
  • Checksum
  • Data, etc
When two computers are connected to the same network, there is no need for routing. However, it is less likely. When you send a from your computer, it is routed through several intermediate networks / routers. The number of intermediate routers is referred to as the 'number of hops.' Computer networks are becoming more sophisticated. They automatically select the shortest path or a path with the fewest hops between sender and receiver.

IPv4 addresses, for example, are 32 bits long, whereas IPv6 addresses are 128 bits long. IPv4 is still widely used today. Assume that the destination IP address is 192.162.0.3. This IP (IPv4) now has two parts. The first part, 192.162.0.0, is known as the network address, and the second part, 0.0.0.3, is known as the host address. Routers that transport data between networks are unaware of the host. This only serves to identify the router (in which the host belongs to). The router then locates the host in its routing table and delivers the data packets.
The receiver then sends the acknowledgement to the sender.

# How TCP termination will happen when server went down in middle of data transfer?

Option in Windows XP allows user to configure one computer in your network as host through which all other workgroup can connect to Internet
A. You can do this with a host computer and a networking hub.

Which part of computer system or network that is designed to block unauthorized access



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