Tcs technical interview questions
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The document contains technical interview questions related to C++, data structures, algorithms, operating systems, object-oriented programming, databases, and more. Some of the key topics covered include pointers, classes, inheritance, abstraction, data structures like stacks and linked lists, sorting algorithms, deadlocks, and differences between structures, arrays, and other programming concepts. The questions range from basic to more advanced.
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![What is a data structure?
What does abstract data type means?
Evaluate the following prefix expression ” ++ 26 + – 1324″ (Similar types can be asked)
Convert the following infix expression to post fix notation ((a+2)*(b+4)) -1 (Similar types can be asked)
How is it possible to insert different type of elements in stack?
What is the difference between process and threads?
What is update method called?
Have you ever used HashTable and Directory?
What are statements in Java?
What is RMI?
Explain about RMI Architecture?
What are Servelets?
What is the use of servlets?
Explain RMI Architecture?
How will you pass values from HTML page to the servlet?
How do you load an image in a Servelet?
What is purpose of applet programming?
How will you communicate between two applets?
What are the basic functions of an operating system?
Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.
What are the difference phases of software development? Explain briefly?
Differentiate between RAM and ROM?
What is DRAM? In which form does it store data?
What is cache memory?
What is hard disk and what is its purpose?
Differentiate between Complier and Interpreter?
What are the different tasks of Lexical analysis?
What are the different functions of Syntax phase, Sheduler?
Const char * char * const What is the differnce between the above two?
What is Memory Alignment?
Explain the difference between ‘operator new’ and the ‘new’ operator?
Difference between delete and delete[]?
What is conversion constructor?
What is a constructor initializer list and when we use constructor initializer list?
What is the order of initialization for data?
Explain linux file types
Why should we use data ware housing and how can you extract data for analysis with example?
What is the difference between appsetting and connectionstring tags in web.config file
How many script manager controls are used in Ajax web page?
What is clr . how we access them?
What is session . how it is use ?
What is webservices. howit is use in our project .
What is view stat? how it is use.
Explain about the difference between a primary key and a Unique key?
What are the different RDBMS explain about one of them?
What do you mean by object oriented programming?](https://image.slidesharecdn.com/tcstechnicalinterviewquestions-130130093323-phpapp01/85/Tcs-technical-interview-questions-2-320.jpg)
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Technical interviews are challenging, but the right preparation can make all the difference. This post covers the most commonly asked questions across key areas: Algorithms, Data Structures, Big O Complexity, OOP, System Design, Debugging, and Soft Skills.
Understanding these concepts will help you tackle real-world coding problems and demonstrate strong problem-solving abilities in interviews.
Save this post for your interview preparation and for deeper insights and expert-led training, explore The Knowledge Academy. Click the link to know more: bit.ly/4iHNMrH
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Tcs technical interview questions
- 1. TCS Technical Interview Questions Which is your favourite language? Basic concepts of C++ like this pointer, function overloading Write a program to add two numbers in C++ using classes. Tell me something about abstract classes? Tell something about deadlock? How can we prevent deadlock? What is Insertion sort, selection sort, bubble sort( basic differences among the functionality of the three sorts and not the exact algorithms) What is Doubly link list? What is Deadlock and how it can be avoided? Write a program that takes a 3 digit number n and finds out whether the number 2^n + 1 is prime, or if it is not prime find out its factors. What is the best algorithm to sort out unique words from a list of more than 10 million words(1 crore+)? we need the best technique in the terms of execution time. What is scope of a variable? (LOLZ) What is data Abstraction? and give example How to swap two numbers with out using temp variable What is importance of data sturture in a programming language? What is the Maximum Size that an Array can hold? What is your strongest programming language (Java, ASP, C, C++, VB, HTML,C#, etc.)? 18What does static variable mean? 19.What is a pointer? 20.What is a structure? 21.What are the differences between structures and arrays? 23.In header files whether functions are declared or defined? 24.What are the differences between malloc() and calloc()? 25.What are macros? what are its advantages and disadvantages? 26.Difference between pass by reference and pass by value? 28.What is static identifier? 29.Where are the auto variables stored? 30.Where does global, static, local, register variables, free memory and C Program instructions get stored? 31.Difference between arrays and linked list? 32.What are enumerations? 33.What is a class? 34.What is an object? 35.What is the difference between an object and a class? 36.What is the difference between class and structure? 37.What is public, protected, private? 38.What are virtual functions? 39.What is friend function? 40.What is a scope resolution operator? What do you mean by inheritance? What is abstraction?
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- 3. State the logic behind palindrome program? How do you sort programs or database or applications? What is the main difference between PL/SQL and SQL? Why do you use stored procedures and what is their main functionality in a RDBMS? Explain about UNIX and the various command used to search for errors during run time? Explain the difference between overloading and overriding?