Tournament Problem Solution

Solving Tournament Problems using Queue

SQL with JDBC

Q: Design at least 10 SQL queries for suitable database application using SQL DML statements:

Insert, Select, Update, Delete Clauses using distinct, count, aggregation on Client-Data sever (three tier).

Use Python for Socket Programming to connect two or more PCs to share a text file.

Os: Fedora 20
Network: Switched LAN(Ethernet)

Note: Program fails to work on Local Area Network. Program works flawlessly on localhost.

While this script works perfectly fine on loop back ie on the same machine, it fails on networks.For some unknown reasons I havent' been able to get this script running of a local network consisting of fedora linux machine despite tweaking with the firewall. I don't get much time to work on local networks and am currently busy with some other endeavors. 

Write an IPC program using pipe using C++ and Python

Q: Process A accepts a character string and Process B inverses the string. Pipe is used to establish communication between A and B processes using C++ & Python

Write a program in Python/C++ to read display the i-node information for a given text file, image file.

Code

 

 

DBMS using connections (Client-application server-Data sever, three tier) Oracle/MySQL (ODBC/JDBC), SQL Joints, prompt.

Created in eclipse(Java EE).

How To Securely Store Data

Note : You require knowledge about file recovery to understand this article. In case, you have no knowledge about this, I highly recommend checking out my article on file recovery.

In one of my earlier posts I demonstrated File Recovery using Forensic Tools.
While File Recovery is possible if the file is deleted using Shift-Delete or even if the partition is formated.

This becomes a major security issue if your pendrive held confidential data earlier. Even quick format is not an option.

Using specialized tools forensic experts can manage to recover any data which was stored on pendrive or any other storage device, provided it is not overwritten. In case , it is overwritten the data could still be partially recovered. I had once recovered partially, a few images using Recuva. They don't look like the exact image but just the thumbnails can be pretty informative.

Pulse Code Modulation and Netowrking using QT and C++

Q: Write a program for Pulse Code Modulation and send the data to a server

Introduction

This is C++ code for both the client and the server to implement PCM and netowrking. The Client is a GUI program while server is terminal based.

 

Python Script to Recover Deleted Files And Partitions

Ever deleted a file permanently and wished to recover it. Here's a python script designed to do this task in Linux operating system.

Magic Sys Rq Key

The Issue

So the other day I was working with Android Studio on my Low Hardware Spec Ubuntu Machine. I decided to build an apk as emulators are simply not an option. But Guess what , my pc used all of the possible RAM and all the possible swap memory and hung(that's pretty rare for Ubuntu!).

I tried opening a terminal Ctrl+Alt+T hoping to kill android studio process. But the PC was unresponsive. This is despite using all the regular optimizations for android Studio that I found on Ubuntu Forums and Stack Overflow.

Any noob would have now headed out towards the power button. If you ever do come across this situation please do not use this approach. This is the last thing you should do, only if everything else fails.