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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.
To accept its goals, ATM uses fixed, small sized packets known cells. Every cell has 53 octets. VPI/VCI fields shows the cells destination. PRIO say if cell can be discarded CRC
Monitor Stations Lost tokens - timer is issued each time a frame or token is generated If no frame is received in time period new token is generated by a monitor stat
What are the drawbacks of ARCNet? Here are some drawbacks of ARCNet: 1. Standard ARCNet is very slow (2.5 Mb/s). It is almost seven times slower than Token Ring. 2. ARC
State the types of performance of computer hardware The hardware, i.e., the server or computer has a direct relationship on performance in the following areas: Reliabili
what is the best time to use brouter rather than router? what are advantages of using brouter over router?
Question 1: (a) In the context of an information system, distinguish and relate among the terms: data, information and decision-making. (b) Describe at least two chall
Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di
Header length This field specifies the length of the TCP header in 32 bit words. This information allows the receiver to know the beginning of the data area becau
Network Devices a.Hub b.Repeater c.Bridge d.Gateway e.Switch f.Router Connecting devices can classified into networking and internetworking devices when
You are the Senior Project Manager in a software company and have, as part of your team, a student on a three month internship. The student has proudly told you that they have stu
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