1. What are the main differences between connectionless networks and connection
ID: 3853038 • Letter: 1
Question
1. What are the main differences between connectionless networks and connection oriented networks? 2. What are the main differences between circuit switched networks and packet switched networks? 3. What are the basic routing techniques? 1. What are the main differences between connectionless networks and connection oriented networks? 2. What are the main differences between circuit switched networks and packet switched networks? 3. What are the basic routing techniques? 2. What are the main differences between circuit switched networks and packet switched networks? 3. What are the basic routing techniques?Explanation / Answer
1)
connection-oriented network :
-It is a reliable networking, where connection is esablished between two hots before transferring data.
-Connection oriented network has three phases :
1) Establish Connection
2) Transfer Data
3) Close Connection
-Here multiple packets can be sent to the receiver before closing connection.
-Receiver can also send packets in same connection.
-When connection is created, it is approved by both hots : sender and receiver.
-TCP is a connection oriented protocol, where connection is created before transferring data.
-It increases traffic due to connection set up messages.
-It is more reliable.
COnnectionless Network :
-In connectionless network data is passed transfered without creating connection.
-In Connectionless network Hosts can send independant packets.
-Order of arival of packets at reeiver can be different than order in which packets were sent by sender.
-packet may loss and it is less reliable.
-It is fast as there is no need to establish connection before sending data.
-UDP is a connectionless protocol.
2)
Circuit switched network :
-In circuit switched network, sender decides the unique path and all the packets in that connection will be sent from that path only.
-While sender is sending data, it decides the path to be used to reach to the destination and all packets follow the path.
-It follows same path irrespective of traffic on that path.
-All packets arrives to receiver in same order as packets were sent by sender.
Packet switched network :
-In packet switch network, all packets may not travel same path.
-Here decision of path is made depending on traffic of network.
-packets may not arrive in order at reciever.
-TCP/IP uses packet switched network.
3)
Basic routing techniques are listed below :
1) Routing techniques in circuit switching :
-Alternate routing
-Adaptive routing
2) Routing techniques in packet switched network :
-fixed routing
-flooding
-random routing
-Adaptive routing
There are many routing algorithms used for routing.
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