Selective Repeat is part of the automatic repeat-request (ARQ). With selective repeat, the sender sends a number of frames specified by a window size even without the need to wait for individual ACK from the receiver as in Go-Back-N ARQ. The receiver may selectively reject a single frame, which may be retransmitted alone; this contrasts with other forms of ARQ, which must send every frame from that point again. The receiver accepts out-of-order frames and buffers them. The sender individually retransmits frames that have timed out. ....etc

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i request for the fallowing abstract namely client server communication using multitasking sockets project ....etc

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to get information about the topicUDP client Java source code refer the page link bellow

import java.net.*;
import java.io.*;

class UDPclient
{
final static int ECHO_PORT=7;
DatagramPacket dp;
DatagramSocket ds;
byte msg=new byte;
String msgreceived;

try{

Reference: http://seminarsprojects.net/Thread-udp-client-java-source-code?pid=59708#pid59708#ixzz1gI81SfxE ....etc

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// writing client server program using UDP

import java.net.*;
import java.io.*;

class UDPserver
{
final static int ECHO_PORT=7;
public static void main(String args)
{
DatagramSocket ds;
DatagramPacket dp;

try{
ds=new DatagramSocket(ECHO_PORT);
while(true){
dp=new DatagramPacket(new byte,1024);
ds.receive(dp);
dp=new DatagramPacket(dp.getData(),
dp.getLength(),dp.getAddress(),dp.getPort());
ds.send(dp);
}
}catch(IOException e){
System.out.println(could not recieve or send ....etc

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Java is an object-oriented programming language developed by Sun Microsystems. A useful feature of Java is that its programs can be executed on World Wide Web pages. Java programs enable Web pages t i become more interactive with users. The Java language consists of classes and methods that provide basic variable types, system input and output capabilities, and other functions. It also includes classes to support networking, Internet protocols, and graphical user interface functions. Java's networking capabilities are contained in the java.net ....etc

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To get full information or details of quiz game please have a look on the pages

http://seminarsprojects.net/Thread-quiz-game

if you again feel trouble on quiz game please reply in that page and ask specific fields in quiz game ....etc

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I need a complete project materials on cryptographically using secured server/client protocol.. Email at [email protected] or [email protected] ....etc

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Implementing Internet GIS with Java based Client/Server Environment


Introduction
GIS is an emerging technology encompassing many disciplines namely geography, cartography,
photogrammetry, remote sensing, surveying, GPS technology, statistics and other disciplines
concerned with handling and analysing spatially referenced data. GIS is mainly comprised of data
handling tools for storage, retrieval, management and analysis of spatial data as well as solving
complex geographical p ....etc

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Implementation of RSA Algorithm Using Client-Server
Presented By:
GAUTHAM R

Introduction
In cryptography, RSA (which stands for Rivest, Shamir and Adleman ) is an algorithm for public-key cryptography.
It is the first algorithm known to be suitable for signing as well as encryption.
RSA is widely used in electronic commerce protocols, and is believed to be secure given sufficiently long keys and the use of up-to-date implementations.
Network security threats
Network Security Threats
Cryptography
Security in networking ....etc

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This project is about developing a web based mail client connecting to a Linux Server running a Mail Server and with Tomcat
as the Web Server.

The Project has the following main functionality
1. Receiving/Sending/organizing mails using POP3
2. Sending mail using send mail
3. Performing Admin functions like managing new user, resetting passwords etc ....etc

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