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Simple Mail Transfer Protocols (SMTP)
The application layer protocols for electronic mail is SMTP( Simple mail transfer protocols).
Internet electronic mail has many components including mail services that house user mailboxes mail readers that allow users to read and write messages a standard for defining the structure of an e mail message and application layer protocols. Thais define how messages are passed between servers, how message are passed between servers and mail readers, and how the contents of certain parts of the mail message ( for example a mail message header) are to be interpreted.
Q. Error Detection-General? Sender transmits every data unit twice Receiver performs bit-by-bit comparison between those two versions of data. Any mismatch would
MAC (media access control) and LLC (logical link control) are both layer 2 protocols.
A mobile host (MH) is connected to a WLAN access network that uses MIP for mobility support. Consider that the RTTs between MH and HA are 0.3s while RTTs within a L2 subnet are 80
TCP (Transmission Control Protocol) and UDP are used by TCP/IP. SPX (Sequenced Packet Exchange) is used with IPX. NBP (Name Binding Protocol) is used with Appletalk.
Q. Why congestion occurs? Congestion Emerge if the load on the network is greater than the capacity of the network - Load that is the number of packets sent to the net
The following issues are decided by the system in the process of message passing: 1) Whether the communication link is established or not 2) Whether the receiver is ready to
CONNECTION TO PACKET SWITCHES: A packet switch many join to devices and to other packet switches. But the speeds are different in both parts. There are typically high-speed j
M E T HOD OF CALCULATION It involves counting the number of each part type and multiplying with the generic failure rate of each part. On summing up the product, we obtain t
What is Round Trip Time? The duration of time it takes to send a message from one end of a network to the other and back, is known as RTT.
Q. What is Multimode Graded-Index Fiber? - Ever since the core density decreases with distance from the centre the light beams refract into a curve - Eliminates problem with
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