i want more information and ppt's about SECURITY CHALLENGE AND DEFENSE OVER VOIP and 3D SEARCHING ....etc

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presented by:-
Balaji Gopal


AUTHENTICATION TECHNIQUES
Authentication is the process of validating who you are and what you claimed to be.
Authentication techniques:
1. What you know (knowledge based).
2. What you have (token based).
3. What you are (biometrics).
4. What you recognize (recognition based).
EXISTING SYSTEM
Textual passwords can be easily cracked or spied.
Smart cards or tokens can be stolen.
Biometrics cannot be revoked.
Even recognition systems suffer many l ....etc

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I am researching support materials for my students who have a major project in their final year of their degree programme. They have been tasked with designing and implement a secure wireless network providing documentation of the process and they need to provide evidence to support their decisions.
Thus any materials on configuring wireless vlans etc would aid their understanding.
Many thanks
Kevin Walter
Course Leader BT/IT
University of Gloucestershire ....etc

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presented by:
K.Raghava Vamsi
L.Naga prasad


ROF net-Transmission of RF Signals over Optical Fibers Using Radio Over Fiber Technology
Abstract- Radio over fiber technology is a combination of wireless and fiber optic networks, is an essential and emerging technology in the field of wireless communications, which can be used in a range of applications including the extension of existing radio coverage and capacity. Obviously, we ....etc

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final year project on design and implementation of vlan ....etc

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Abstract— Computational Private Information Retrieval (cPIR) protocols allow a client to retrieve one bit from a database, without the server inferring any information about the queried bit. These protocols are too costly in practice because they invoke complex arithmetic operations for every bit of the database. In this paper, we present pCloud, a distributed system that constitutes the first attempt toward practical cPIR. Our approach assumes a disk-based architecture that retrieves one page with a single query. Using a striping technique, ....etc

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Inter-vlan routing
CISCO WORLD
Why we are here ???
The Past-….bye-bye
The Present-….Hang on Tight!!
CISCO CCNA Devices
IP Addressing
An IP(Internet Protocol) address is a unique identifier for a node or the host connection on an IP network.
An IP address is a 32 bit binary number usually represented as 4 decimal values , each representing 8 bits, in the range 0 to 255 (known as octets) seprated by decimal points. This is known as “doted decimal” notation. Example: 140.179.22 ....etc

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Advantages of digital communication system over analog communication system
Communication systems
 The block diagram on the top shows the blocks common to all communication systems
Remember the components of a communications system:
 Input transducer: The device that converts a physical signal from source to an electrical, mechanical or electromagnetic signal more suitable for communicating
 Transmitter: The device that sends the transduced signal
 Transmission channel: The physical medium ....etc

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INDUSTRIAL FAULT INDICATION SYSTEM WITH OVER VOLTAGE OVER TEMPERATURE USING ANALOG TO DIGITAL(ADC) CONVERTERS
Aim:
To design a fault indication system with over voltage over temperatue
BLOCK DIAGRAM:
Description:
To measure the voltage, current, and resistance we need to design analog circuits. These analog circuits measure these three parameters and ready to corresponding outputs.
The outputs of these analog circuits are to be connected ADC, ....etc

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Presentation by :-
Rutwij Patil.


What is VLAN ?
 vendor-specific solution and strategy, so defining it is an issue.
 VLAN's allow a network manager to logically segment a LAN into different broadcast domains.
 multiple physical LAN segments independent of physical location and can communicate as if they were on a common LAN
Why use VLAN's?
 Performance
 Formation of Virtual Workgroups
 Simplified Administration
 Reduced Cost
 Security
 VLAN Membership
 Memb ....etc

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