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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.
What is difference between baseband and broadband transmission? In a baseband transmission, the whole bandwidth of the cable is consumed by a one signal. In broadband transmiss
State the difference between Byte streams and message Byte streams and message are different. In a message stream, network keeps track of the message boundaries. In a byte stre
Screening Router In this setup network router acts as a firewall. It checks all incoming and outgoing packets according to the predefined rules. This filter is placed at the c
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
Gigabit Ethernet Data rate of 1000 Mbps or else 1 Gbps Typically implemented as full-duplex with no CSMA/CD 1000Base-X utilizes long-wave optical fiber (1000Base-
What are the important topologies for networks? BUS topology: In this every computer is directly linked to primary network cable in a single line. Advantages: Inexpensive,
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Token Passing - Token Ring (IEEE 802.5) Needs that station take turns sending data Token passing coordinates process Token is a especially formatted three-byte fr
State in brief about the Information Access Intranet This type of Intranet is the type commonly found on the World Wide Web. The static web page may include information on
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