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Data Transfer
After connection is established bidirectional data transfer can take place. The client and server can both send data and acknowledgments. Figure shows an example in this example after connection is established the client sends 2000 bytes in two segments. The server than send 2000bytes in one segment. The client sends one more segment. The first three segments carry both data and acknowledgment, but the last segment carries only an acknowledgment because there are o more data to be sent. Note the value of the sequence and acknowledgment numbers. The data segments sent by the client have the PSH flag set so that the server TCP knows to deliver data to the server process as soon as they are received. The segment from the server on the other hand does not set the push flag. Most TCP implementation have the options to set or not set this flag.
ARP is used to search a devices MAC address given an IP address.
PACKET SWITCHES: To span large distances or several computers, networks must removed shared phase with packet switches. Each switch moves whole packet from one connection to
Elements of protocol
It is possible for a datagram to generate ICMP errors after it has been fragmented. For example, suppose that each of two fragments cannot be delivered. Seemingly, this would mean
There are two kinds of characteristics in case of network performance. Delay Throughput
what is this ?
The performance of interconnection networks is measured on the below parameters. 1) Bandwidth: It determines maximum transfer rate between any two nodes. It is measured in MB
Password Authentication Protocols (PAP) PAP implements the traditional username and password authentication methods. At the request from an authenticator the client respon
Network Criteria - Performance - It is able to be measured by transit time and response time. Affected by type of medium, number of users and connected HW/SW - Reliability
What are the advantages and disadvantages of the three types of routing tables? The three types of routing tables are fixed, dynamic, and fixed central. The fixed table must be
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