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Q. Explain Simple Mail Transfer Protocol?
Electronic Mail
-Simple Mail Transfer Protocol (SMTP) is used to support email on the Internet
-Addressing consists of two parts: a local part and a domain name, separated by an @ sign
-Local part defines the user mailbox
-Domain name defines the mail exchanger for the organization
Microcells As cells become smaller, antennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp
Error Detection- 2D/LRC Adds an additional character (instead of a bit) A block of bits is prearranged in a table The Parity Bit for every data unit is calculate
5 IGRP supports a feature that permits traffic to be distributed among up to 6 (4 default) paths to give greater allover throughput and reliability. What is this called? Ans) An
Q. Permutation representation through Matrix? Figure: Clos Network The functioning of this above permutation is displayed in Figure. This permutation is able to
Transmission Control Protocol - TCP is a connection oriented transport layer protocol with built unreliability. It considers a large block of data and breaks it down into segments
Q. Show the Flow characteristics? Flow characteristics Reliability - if lacking means that packets or ACKs are lost - more important with FTP, SMTP than with audio
The purpose of internetworking is universal service across heterogeneous networks. To give this service all computers, and routers have to agree to forward information from a sourc
Q. Show the Network layer in an internetwork? - Receives data from Transport layer - Responsible for creating Packet - Each packet contains - Universal Address of Sour
How Firewall configuration makes all the difference The greatest blunder that any company make is to just install a firewall and think that they have ensured perfect securit
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
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