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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.
Take the maximum packet lifetime, T. It's stated that T must be big enough to make sure the packet and its ACK have vanished. Why do we have to have the ACK?
Q. Explain the Types of Security Service? Security Services fall into one of the subsequent categories - Confidentiality: Confirms that the info in a system and transm
Most real-life applications are built on top of the UDP and TCP transport protocols. UDP, which stands for User Datagram Protocol, provides the capability of delivering individual
What is Stateful Multi-Layer Inspection (SMLI) They are considered as the third generation of firewall technology and usually combine the facilities of the above two. They are
Explain the Multipath resistance The chipping codes used for CDMA not only exhibit low cross-correlation but also low autocorrelation. Thus, a version of the signal that is del
Q. Define internet network address? The internet network address is additional commonly called the -IP address.? It consists of 32 bits a few of which are allocated to a hi
Many instance of IGRP run on one physical router
Explain the term- congestion The average queue size over the last cycle and the current cycle is calculated. This value is the threshold. By averaging over two cycles instead o
Company Access Company access is that in which end systems are connected in connecting end systems in a organization or educational institution into the network. On co
Explain the disadvantages of symmetric algorithms?
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