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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.
Wireless Access Wireless access connecting end systems ( that are often mobile) into the network. Today there are two broad types of wireless internet access(1) wireless an
Firewalls After several security related internet newsgroups started overflowing with posts it becomes clear something hand to done to help secure networks. The first
Categorization according to kind of instruction and data According to types of instruction and data subsequent types are identified under this classification: Scalar Pi
State in brief about the Graceful degradation With FDMA or TDMA, a fixed number of users can concurrently access the system. Though, with CDMA, as more user concurrently access
Question The operational amplifier in the peak detector circuit shown in the figure below is powered from plus and minus 15 V. If Vout is at 1V and Vin is at 0.5V, at approxima
Sonet Frame Transaction Transmitted one subsequent to another without any gap in between. First 2 bytes - alignment bytes. F628 in Hex. - define the beginning of every
what is similarity of wifi and 3g
What is the use of a default gateway? Default gateways give means for the local networks to connect to the external network. The default gateway for connecting to the external
Q. Electrical Characteristics of 9-Pin RS232 Connector? Electrical Characteristics - Single-ended One wire per signal and voltage levels are with respect to s
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
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