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Mail Access Protocols
The e mail message are usually sent to an email server that stores received message in the recipient e mail mailbox. The user retrieves message with either a web browser or an e mail client that uses one of a number of mail retrieval protocols.
Some clients and servers preferentially use vendor specific proprietary protocols. But most support the internet protocols, SMTP for sending e mail and POP3 ( post office protocols version 3) and IMP4 ( internet Mail Access protocols , version 4 for retrieving email allowing mterprebability with other servers and clients. SMTP can also be used for retrieving email. It is more suitable for permanent internet connection than say a dialup connection and is not supported by most e mail client software.
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
Q. Why it is essential to have layering in a network? Ans: A computer network is a very complicated system. It becomes very hard to implement as a single entity. The layered ap
In the following section, we shall discuss the algorithms for solving the matrix multiplication difficulty using the parallel models. Matrix Multiplication Problem Let ther
Question : (a) List down and explain the different signal propagation behaviours that radio waves exhibit. (b) Explain the term Delay Spread with reference to signal propaga
Factor Causing Parallel Overheads Figure clearly explains that the performance metrics are not able to achieve a linear curve in comparison to the enhance in number of process
Briefly describe NAT and RIP NAT is Network Address Translation. This is a protocol that gives a way for multiple computers on a common network to share one connection to the I
Token Passing Station is able to send only when it receives a special frame called a token Token circulates around the ring If station wishes to sen
How does EIGRP protocol update route information to its neighbors
advantages and disadvantages of time sharing system
Question: (a) Explain how a Token Ring networks allows sharing of bandwidth (access control). (b) (i) CSMA/CD is not appropriate for wireless communication. Explain wh
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