I want to prepare for TCS (Tata Consultancy Services) Placement Exam so please suggest me topics to prepare for exam?

Here I am suggesting you some topics to prepare for TCS (Tata Consultancy Services) Placement Exam.

TCS off Campus Recruitment Drive Process:
Written Test
Technical Interview
HR Interview

Written Test:
No of questions: 35
Time limit: 80 Minutes
Negative mark: 1/3
Calculators can be allowed
For each wrong question 0.33 marks will be deducted.

Topics for Preparation:
Puzzles
Probability
Time and Work
Coding and decoding
Numbers
Simple equations
Permutation and combination
Average
Clocks and calendars
Geometry
Statement problem
C++, java, OS, DBMS

Some Technical Interview Questions:
1. Differences between C and Java?
2. JSP is a language? Justify
3. What are the types of Collision Resolution Techniques and the methods used in each of the type?
4. What are DDks? Name an operating system that includes this feature.
5. What has triggered the need for multitasking in PCs?
6. What is page cannibalizing?
7. What is SLIP (Serial Line Interface Protocol)?
8. What are the possible ways of data exchange?
9. Find the n-1th maximum salary.
10. What is DML (Data Manipulation Language)?
11. About the Projects
12. About C++, what is oops?? Features of oops???
13. About my favorite subject?
14. Logic gate
15. To design any software and how will it be marketed?
16. Write a program to swap the value two variables without using third variable. ( wrote by simple logic but he wants different one.)
17. WAP to swap two variables with XOR ing of two variables (Wrote after giving hint by him).
18. What are ranges of int, unsigned int, float,long ?
19. What is Data structure, java
20. OSI Layers
21. Five queries and also about normalization, anomalies, ACID properties, joins.
22. What is array? (Explained in deep...he said now I`ll not ask the technical
23. Basics like joins, normalization, sorting, etc...
24. Draw circuit diagram of 8085 microprocessor?
25. The electron motion in transistor. noise ratio explain
26. AWT, OS, SWING, what is meaning of Designing in SDLC?
27. Oracle, function overloading, DBMS and RDBMS, What is normalization

HR Round Questions:
Market yourself.
Why TCS?
Mention five uses of a pen other than writing
Do you know about bond?
You ready to sign the bond?
What are your ambition, weakness and strength? Asked me one by one?
Hobbies
Tell about your family background.
Why should we select you?
What are your expectations from society?
Some puzzles
What is IT industry?