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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.
Define Choke packet and Implicit congestion signalling Choke packet: A choke packet is a control packet produced at a congested node and transmitted back to a source node to co
Computer Networks 1. Differentiate WAN and LAN. 2. Describe the TCP/IP Reference Model with diagram. 3. Explain Circuit switching and message switching. 4. List the fu
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A generic algorithm is mostly analyzed on the basis of the following parameters: the time complexity (implementation time) and the space complexity (amount of space necessary). Usu
Application Layer The application layer provides an interface between application entities and the users computer. This layer offers services to a variety of aspects of d
Let's consider the network shown in Figure 1 where Snort is deployed. In Figure 1, why is Snort deployed in the DMZ instead of the Internal Network? In Figure 1, say True or
Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo
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Address Resolution Protocol resolves the MAC address if the IP address is known. It is a layer 3 protocol.
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