Monday, 31 October 2011

How To Change Windows 7 Logon Screen Easily (Without Using Hacks & Tools)

Finally Microsoft has incorporated a new feature in the latest build (7057) of Windows 7 which supports the end user to change the logon screen background without using any hacks or third-party tools.
Follow the procedure below to change the Windows 7 logon screen.
1. Download the registry file from here. Extract the file and double-click on the file to enable this feature (Alternative method: right-click, select Merge).

2. Now, head over to the following folder:
C:\Windows\System32\oobe (“C” is your Windows Seven Installation drive)

3. Here, create a new folder named Info. Again, create a new folder inside the Info folder and rename it as backgrounds.

4. Copy your favorite image file to this folder and rename it as backgroundDefault. Note that the image must be in JPG format and the size should be less than 256 KB.

5. You are done. Reboot your system and see the change.

The following files (sorted by width-to-height ratio) are supported inC:\Windows\System32\oobe\Info\Backgrounds folder:

* backgroundDefault.jpg
* background768×1280.jpg (0.6)
* background900×1440.jpg (0.625)
* background960×1280.jpg (0.75)
* background1024×1280.jpg (0.8)
* background1280×1024.jpg (1.25)
* background1024×768.jpg (1.33-)
* background1280×960.jpg (1.33-)
* background1600×1200.jpg (1.33-)
* background1440×900.jpg (1.6)
* background1920×1200.jpg (1.6)
* background1280×768.jpg (1.66-)
* background1360×768.jpg (1.770833-)

Block / UnBlock Any Website in your Collages & Offices Or Any Where You Want

Many times in schools, colleges & offices surfing some sites are banned.
To overcome this you can unblock these or block some other websites and play pranks !

Follow the Instructions Below To Block a Website:

  1. Open the folder C:\WINDOWS\system32\drivers\etc
  2. There you will find a file named HOSTS
  3. Click on the file and right click.
  4. From the right click menu select Open with.
  5. Now, select Notepad to open the file from the list.
  6. Now, in the file under the line localhost add another line as                           
  7. File > Save.

Follow the Instructions Below To UnBlock a Website:

-> Do Same as above upto and then,
Now, open your web browser and try opening, it will not load.
To unblock sites just do the opposite. ( means to remove : )

Some ABBREVIATIONS Which Are Not Known To Many Of Us :


CHESS: Chariot, Horse, Elephant, SoldierS.

COLD : Chronic Obstructive Lung Disease.

JOKE : Joy Of Kids Entertainment.

AIM : Ambition In Mind.

DATE : Day And Time Evolution.

EAT : Energy And Taste.

TEA : Taste And Energy Admitted.

PEN : Power Enriched In Nib.

SMILE : Sweet Memories In Lip ex-pression.

BYE : Be with You Everytime.

Monday, 24 October 2011

SYNTEL Registration Process for 2012 passouts

Step 1 :
           Go the link
 Click on Become a member ..

Step2 : Fill the fields and click Submit

  Goto  your mail , you'd have received a mail from monster ...
 See the activation code given to you..

Step 4 :  Click on Activate

 Step 5 : Copy and Paste the  Activation code from your mail and click Submit..

Wednesday, 12 October 2011

Network Programming (NP) Important Questions-Unit wise

1. Write difference between TCP & UDP.
2. Explain use of TIME_WAIT State.
3. Draw neat sketch diagram for TCP state transition diagram.
4. Differentiate between iterative and concurrent server.
5. Explain TCP connection establishment (three way handshake) and TCP connection termination (four way handshake).
6. Explain client server example for concurrent server.
7. Explain following terms.
o Piggybacking
o MTU & Path MTU
o Socket pair
o Incarnation
8. Write use of port number & Explain different types of port number.
9. How communications take place if client and server are on the same Ethernet? Explain with diagram.
10. Write steps and buffers involved when an application writes to a TCP socket.

11. Write a server program using TCP protocol which returns Client IP address and Port number.
12. Discuss the generic socket address structure,IPV4 socket address structure,IPV6 socket address structure.
13. Identify and discuss the queues maintained by the kernel with suitable diagrams.
14. Discuss the connect function and identify different error returns identified by connect function.
15. If TCP client doesn’t call bind, how will the address be bound to the client socket?
16. Explain value-result parameter passing mechanism with diagram.
17. What are the purpose of the ntohs(), htons(), socket(), listen() and inet_pton() functions in a socket program? Give the syntax of each.
18. Explain Little-endian byte order and big-endian byte order. Write program to determine host byte order.
19. Justify the need for the functions getsocketname and getsockpeername.
20. Explain byte manipulation functions. Give the syntax of each.

21. Explain difference between wait and waitpid.
22. Write a “C” program for TCP echo server.
23. What is signal? How kernel does handle signal? Which signal does kernel send to parent process when child process terminates?
24. Write a “C” program for TCP echo client.
25. How does server handle Zombie child process?
26. Write a “C” program for TCP server to convert a string received from client into uppercase.
27. Write a “C” program for TCP server to reverse string received from client.
28. Write steps performed when server is crashing and rebooting.
29. What are the different error returns to the process when server host crashes?
30. Write steps perform by process when connection abort before accept returns.

31. Differentiate between close function and shutdown function. What is the use of how to argument used in the function shutdown?
32. Answer the following.
o What is the difference between select () and poll ()?
o Explain the functions getsockopt and setsockopt with arguments.
33. With suitable diagrams differentiate the five I/O models.
34. When is socket said to be ready for reading and writing data. Identify and discuss the conditions.
35. Write “C” program to implement TCP echo server using select().
36. Write “C” program to implement TCP echo server using poll().
37. Explain any five socket option for Generic socket.
38. Explain the five I/O model with suitable diagrams.
39. Explain SO_LINGER SOCKET option.
40. Explain nagle’s algorithm.

Facts about IBM

Facts about IBM:

1. IBM is popularly known as 'Big Blue'

2. Five IBMers have won Nobel Prizes for physics.

3. In 2008, IBM became the first company to ever earn more than 4,000 US patents in a single 


4. IBM is also the highest patent earner, has a long list of tech inventions to its credit and

    makes 35 of the world's 100 most powerful supercomputers.