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TCS Interview Questions, Process, and Tips

Updated 24 Feb 2025

Top TCS Interview Questions and Answers

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10.5k interviews found

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Dec 2024.

Round 1 - Technical 

(22 Questions)

  • Q1. API Gateway implementation
  • Ans. 

    API Gateway implementation is a centralized service that routes, manages, and secures API calls.

    • API Gateway acts as a single entry point for all API calls

    • It can handle authentication, rate limiting, caching, and request/response transformations

    • Examples include AWS API Gateway, Apigee, Kong

  • Answered by AI
  • Q2. Circuit breaker implementation
  • Ans. 

    Circuit breaker is a design pattern used to prevent system overload by temporarily stopping requests to a failing service.

    • Circuit breaker monitors requests to a service and opens when the service fails repeatedly.

    • It helps prevent cascading failures and allows the system to gracefully degrade.

    • Once the circuit breaker is open, it can periodically check if the service has recovered before allowing requests again.

  • Answered by AI
  • Q3. What is deadlock? How to avoid it?
  • Ans. 

    Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.

    • Avoid circular wait by ensuring processes request resources in the same order.

    • Prevent hold and wait by requiring processes to request all needed resources at once.

    • Implement a timeout mechanism to break potential deadlocks.

    • Use resource allocation graphs to detect and prevent deadlocks.

    • ...

  • Answered by AI
  • Q4. Explain equals() method
  • Ans. 

    The equals() method is used to compare the contents of two objects for equality.

    • The equals() method is a method of the Object class in Java.

    • It is used to compare the contents of two objects for equality.

    • The default implementation of equals() in the Object class compares memory addresses, so it is often overridden in custom classes to compare content.

    • Example: String class overrides equals() method to compare the content

  • Answered by AI
  • Q5. How mongodb was integrated in your application?
  • Ans. 

    MongoDB was integrated in the application by using the official Java driver and configuring connection settings.

    • Used the official MongoDB Java driver to interact with the database

    • Configured connection settings such as host, port, database name, and authentication credentials

    • Implemented CRUD operations using MongoDB Java driver methods

    • Utilized MongoDB aggregation framework for complex queries

  • Answered by AI
  • Q6. What is hibernate?
  • Ans. 

    Hibernate is an open-source Java framework that simplifies the development of database interactions in Java applications.

    • Hibernate is an Object-Relational Mapping (ORM) tool that maps Java objects to database tables.

    • It provides a way to perform database operations using Java objects instead of writing SQL queries.

    • Hibernate handles the mapping of Java classes to database tables and vice versa, as well as the generation ...

  • Answered by AI
  • Q7. Runnable vs Callable interface
  • Ans. 

    Runnable is a functional interface with a single run() method, while Callable is a functional interface with a single call() method.

    • Runnable is used for tasks that do not return a result, while Callable is used for tasks that return a result.

    • Callable can throw checked exceptions, while Runnable cannot.

    • Callable returns a Future object, which can be used to retrieve the result of the computation.

    • Example: Runnable - execu...

  • Answered by AI
  • Q8. Which type of data is returned by Callable interface?
  • Ans. 

    The Callable interface in Java returns a Future object.

    • Callable interface returns a Future object which represents the result of a computation that may not be available yet.

    • The Future object can be used to retrieve the result of the computation, check if it is done, or cancel the computation.

    • Example: Callable<Integer> task = () -> { return 42; }

  • Answered by AI
  • Q9. HashMap internal working
  • Q10. Concurrent HashMap internal working
  • Q11. How to monitor health of your application?
  • Ans. 

    Monitor application health using metrics, logs, alerts, and performance monitoring tools.

    • Use monitoring tools like Prometheus, Grafana, or New Relic to track key metrics such as CPU usage, memory usage, response times, and error rates.

    • Implement logging to record important events and errors in your application. Use tools like ELK stack (Elasticsearch, Logstash, Kibana) for log analysis.

    • Set up alerts to notify you of any...

  • Answered by AI
  • Q12. How to call an API in a Microservice architecture?
  • Ans. 

    To call an API in a Microservice architecture, use HTTP requests or messaging protocols like gRPC.

    • Use HTTP requests to communicate between microservices

    • Implement RESTful APIs for easy integration

    • Leverage messaging protocols like gRPC for efficient communication

    • Consider using service discovery mechanisms for dynamic API calls

  • Answered by AI
  • Q13. Explain Profiles
  • Ans. 

    Profiles in Java are configurations that define the capabilities of a Java platform.

    • Profiles allow developers to target specific types of devices or applications.

    • They help in reducing the size of the Java runtime environment by including only the necessary APIs.

    • Examples include Java SE Embedded Profile for embedded devices and Java SE Compact Profile for resource-constrained environments.

  • Answered by AI
  • Q14. What is OpenFeign, and how is it used in microservices architecture?
  • Ans. 

    OpenFeign is a declarative web service client used to simplify the process of making HTTP requests in microservices architecture.

    • OpenFeign allows developers to define RESTful web services as interfaces and automatically generate the necessary implementation code.

    • It integrates seamlessly with Spring Cloud and other microservices frameworks to facilitate communication between services.

    • OpenFeign supports features like loa...

  • Answered by AI
  • Q15. What is the implementation process for service registry and discovery?
  • Ans. 

    Service registry and discovery involves registering services and allowing clients to discover and connect to them.

    • Implement a service registry where services can register themselves with metadata

    • Use a service discovery mechanism for clients to find and connect to services

    • Implement health checks to ensure services are available and healthy

    • Use a load balancer to distribute traffic among multiple instances of a service

  • Answered by AI
  • Q16. What are Spring boot actuators?
  • Ans. 

    Spring Boot Actuators are built-in tools that provide insight into the running application.

    • Actuators expose various endpoints to monitor and manage the application.

    • They can be used to check health, metrics, environment details, and more.

    • Examples include /actuator/health, /actuator/metrics, and /actuator/env.

  • Answered by AI
  • Q17. Synchronous vs Asynchronous communication
  • Ans. 

    Synchronous communication is blocking, while asynchronous communication is non-blocking.

    • Synchronous communication waits for a response before continuing, while asynchronous communication does not wait.

    • Examples of synchronous communication include traditional function calls, while examples of asynchronous communication include callbacks and promises.

    • Synchronous communication can lead to performance issues if there are d...

  • Answered by AI
  • Q18. Explain Synchronized keyword
  • Ans. 

    Synchronized keyword is used in Java to control access to shared resources by multiple threads.

    • Synchronized keyword can be applied to methods or code blocks to ensure only one thread can access the synchronized code at a time.

    • It prevents race conditions and ensures thread safety by creating a lock on the object or class.

    • Example: synchronized void myMethod() { // synchronized code block }

  • Answered by AI
  • Q19. What are the consequences of excessively using synchronized blocks and methods in Java?
  • Ans. 

    Excessive use of synchronized blocks and methods in Java can lead to performance issues and potential deadlocks.

    • Decreased performance due to increased contention for locks

    • Potential deadlocks if multiple threads are waiting for each other to release locks

    • Increased complexity and difficulty in debugging and maintaining code

    • Use synchronized sparingly and consider alternatives like ConcurrentHashMap or Lock interface

  • Answered by AI
  • Q20. How can you determine the number of threads needed for your application?
  • Ans. 

    The number of threads needed for an application can be determined based on factors like the type of tasks, hardware resources, and performance requirements.

    • Consider the type of tasks your application needs to perform - CPU-bound tasks may benefit from more threads, while I/O-bound tasks may not.

    • Take into account the hardware resources available - more threads may be beneficial on a multi-core processor compared to a si...

  • Answered by AI
  • Q21. Explain Executor framework
  • Ans. 

    Executor framework is a framework in Java that provides a way to manage and execute tasks asynchronously.

    • Allows for managing thread execution in a more efficient way

    • Provides a way to decouple task submission from task execution

    • Supports various types of executors like ThreadPoolExecutor and ScheduledExecutorService

    • Helps in handling tasks concurrently and asynchronously

  • Answered by AI
  • Q22. Explain BlockingQueue
  • Ans. 

    BlockingQueue is an interface in Java that represents a queue which supports operations that wait for the queue to become non-empty when retrieving an element and wait for space to become available in the queue when adding an element.

    • BlockingQueue is part of the java.util.concurrent package.

    • It is used for implementing producer-consumer scenarios where multiple threads are involved.

    • Methods like put() and take() are used...

  • Answered by AI
Round 2 - HR 

(2 Questions)

  • Q1. Why did you leave your previous company?
  • Ans. 

    Seeking new challenges and opportunities for growth.

    • Desire for career advancement

    • Looking for new challenges

    • Seeking better work-life balance

    • Company restructuring or downsizing

    • Relocation to a new area

  • Answered by AI
  • Q2. Other basic questions asked regarding the relevant skills and technologies I have worked with.

Top TCS Java Developer Interview Questions and Answers

Q1. what are the difference between abstract class and interface, and throw and throws, and why we use throws?? Why String is Immutable?
View answer (6)

Java Developer Interview Questions asked at other Companies

Q1. Sort 0 and 1 Problem Statement Given an integer array ARR of size N containing only integers 0 and 1, implement a function to sort this array. The solution should scan the array only once without using any additional arrays. Input: The firs... read more
View answer (3)

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Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - Technical 

(5 Questions)

  • Q1. React Life cycle
  • Q2. What React hooks have you utilized in your projects?
  • Q3. What is Redux, and what are the differences between Redux and Context?
  • Q4. What is the difference between visibility: hidden and display: none in CSS?
  • Q5. What are JavaScript closures, the temporal dead zone (TDZ), hoisting, and the JavaScript engine?
Round 2 - Coding Test 

Identify the duplicate character in the string.

Top TCS Front end Developer Interview Questions and Answers

Q1. Allocate BooksGiven an array ‘arr’ of integer numbers . where ‘arr[i]’ represents the number of pages in the ‘i-th’ book. There are ‘m’ number of students and the task is to allocate all the books to their students. Allocate books in such a... read more
View answer (2)

Front end Developer Interview Questions asked at other Companies

Q1. Non-Decreasing ArrayYou have been given an integer array/list 'ARR' of size 'N'. Write a solution to check if it could become non-decreasing by modifying at most 1 element. We define an array as non-decreasing, if ARR[i] &lt;= ARR[i + 1] ho... read more
View answer (6)
TCS Interview Questions and Answers for Freshers
illustration image
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

There are two main sections: foundation and advanced. The foundation section consists of three subsections: quantitative, reasoning, and verbal. If you pass the foundation section but do not clear the advanced section, you will be considered for either the ninja role or the digital role during the interview process. The advanced section includes advanced aptitude questions and two coding questions.

Round 2 - Technical 

(5 Questions)

  • Q1. Can you provide an introduction about yourself?
  • Q2. 3 to 4 questions based on database
  • Q3. 2 easy coding questions
  • Q4. Questions based on technology that I knew
  • Q5. Situation based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on the first round, as it can be quite challenging; once you pass it and are selected for an interview, the subsequent process feels considerably easier.
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Jan 2025.

Round 1 - Technical 

(8 Questions)

  • Q1. What is a directive in Angular?
  • Ans. 

    Directives in Angular are markers on a DOM element that tell Angular to attach a specified behavior to that DOM element or transform it.

    • Directives are used to create reusable components or add behavior to existing elements.

    • There are three types of directives in Angular: Component, Structural, and Attribute directives.

    • Examples of built-in directives in Angular include ngIf, ngFor, and ngStyle.

  • Answered by AI
  • Q2. What are pipes and what are their types?
  • Ans. 

    Pipes are a form of inter-process communication used in Unix-like operating systems to send data between processes.

    • Pipes allow communication between processes by connecting the standard output of one process to the standard input of another process

    • There are two types of pipes: unnamed pipes and named pipes (also known as FIFOs)

    • Unnamed pipes are created using the pipe system call and exist only as long as the processes ...

  • Answered by AI
  • Q3. What is the dependency injection (DI) system in Angular?
  • Ans. 

    DI system in Angular is a design pattern where dependencies are injected into a class rather than the class creating them.

    • DI helps in creating loosely coupled components in Angular applications.

    • It allows for easier testing and maintenance of code.

    • Dependencies are provided to a component through its constructor.

    • Angular's DI system is hierarchical, meaning dependencies can be injected at different levels of the applicati...

  • Answered by AI
  • Q4. What is an HTTP Interceptor, and can you provide an example of its use?
  • Ans. 

    An HTTP Interceptor is a middleware component that intercepts incoming and outgoing HTTP requests in an application.

    • HTTP Interceptors are commonly used in Angular applications to modify or log HTTP requests/responses.

    • They can be used to add headers, handle errors, or perform authentication.

    • An example of using an HTTP Interceptor is adding an authorization token to every outgoing request for secure API calls.

  • Answered by AI
  • Q5. What is the difference between localStorage and sessionStorage?
  • Ans. 

    localStorage and sessionStorage are both web storage options in JavaScript, but they have different scopes and lifetimes.

    • localStorage stores data with no expiration date, while sessionStorage stores data for one session only

    • localStorage data persists even after the browser is closed and reopened, while sessionStorage data is lost when the browser is closed

    • Both can only store strings, but can be converted to other data

  • Answered by AI
  • Q6. What are design patterns commonly used in Angular?
  • Ans. 

    Common design patterns in Angular include Singleton, Observer, Factory, and Dependency Injection.

    • Singleton pattern ensures a class has only one instance and provides a global point of access to it.

    • Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

    • Factory pattern is used to create objects without specifying t...

  • Answered by AI
  • Q7. What is the role of route guards in Angular, and what are their types?
  • Ans. 

    Route guards in Angular are used to control access to certain routes in an application.

    • Route guards are used to protect routes in Angular applications by controlling whether a route can be activated or not.

    • There are three types of route guards in Angular: CanActivate, CanActivateChild, and CanDeactivate.

    • CanActivate guard is used to determine if a route can be activated.

    • CanActivateChild guard is used to determine if a c...

  • Answered by AI
  • Q8. What are the methods for communication between components?
  • Ans. 

    Methods for communication between components include synchronous and asynchronous communication, message queues, APIs, and web services.

    • Synchronous communication: Components communicate in real-time, waiting for a response before proceeding.

    • Asynchronous communication: Components communicate without waiting for a response, allowing for parallel processing.

    • Message queues: Components send messages to a queue for other com...

  • Answered by AI

Top TCS IT Analyst C2 Interview Questions and Answers

Q1. How do you create alert mechanism with using any 3rd party tools ?
View answer (1)

IT Analyst C2 Interview Questions asked at other Companies

Q1. How do you create alert mechanism with using any 3rd party tools ?
View answer (1)

TCS interview questions for popular designations

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 IT Analyst

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 Ninja

 (187)

 Java Developer

 (186)

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Jan 2025.

Round 1 - Aptitude Test 

It sounds like you might be asking for an aptitude test that has 20 questions or characters, possibly for a job application. Aptitude tests for jobs usually focus on assessing your ability to think logically, solve problems, and apply basic skills in areas like math, reasoning, and verbal abilities.

Here’s an example of 20 sample aptitude test questions, covering different types of skills:

1. Numerical Aptitude

What is 15% of 200?

If a car travels 60 miles in 1 hour, how far will it travel in 5 hours at the same speed?

Solve for x: 2x + 5 = 15.


2. Logical Reasoning

What comes next in the sequence: 2, 4, 8, 16, ___?

If all roses are flowers and some flowers are red, are all roses red?

Which number is the odd one out: 3, 5, 9, 7?


3. Verbal Ability

Find the synonym of "quick": a) slow, b) fast, c) steady, d) loud

Choose the correct sentence: "She don't like apples" or "She doesn't like apples?"

Find the antonym of "bright": a) shiny, b) dull, c) happy, d) light


4. Data Interpretation

If a graph shows sales increasing by 20% each month, how much is the increase in the 3rd month if sales were $100 initially?

The pie chart below shows the distribution of monthly expenses. If the rent is 25%, how much is the rent if the total is $1200?


5. Spatial

Interview Preparation Tips

Interview preparation tips for other job seekers - If you're looking for an aptitude test specifically designed for job seekers, these tests are often used by employers to evaluate your problem-solving, analytical, and reasoning skills. Here are some common types of aptitude tests for job seekers and what they typically assess:

1. Numerical Reasoning

What it assesses: Your ability to work with numbers, percentages, ratios, and interpret data.

Example Question:
If a company’s profit increased from $50,000 to $75,000 in a year, what is the percentage increase in profit?


2. Verbal Reasoning

What it assesses: Your ability to understand and interpret written information

Get interview-ready with Top TCS Interview Questions

Salesman Interview Questions & Answers

user image Anonymous

posted on 25 Jan 2025

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Dec 2024.

Round 1 - Case Study 

I want to jobs for interview

Round 2 - Case Study 

A company for portal the technical support know

Round 3 - Technical 

(5 Questions)

  • Q1. A person teaching for the system jobs interview
  • Q2. I had again jobs training computer and things are variety of culture of section
  • Q3. I am ready for more building skills
  • Q4. This is enginnering the stores
  • Q5. I Did you services forward to secured Android
Round 4 - Assignment 

A saw the very store pages of line mean

Interview Preparation Tips

Interview preparation tips for other job seekers - I also want to friends are share with job other people who any give required tell

Salesman Interview Questions asked at other Companies

Q1. How can you motivate the customer to buy our products
View answer (8)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via campus placement at Lovely Professional University (LPU) and was interviewed in Dec 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

Basic aptitude tests

Round 2 - Coding Test 

There were two coding questions: one was classified as easy, while the other was of medium difficulty. The code must pass all test cases to be deemed complete.

Round 3 - Technical 

(2 Questions)

  • Q1. What basic coding logic questions were asked during the interview, such as checking for a prime number, finding the sum of digits in a string, and printing a pattern, along with any situation-based questio...
  • Q2. How can I approach my manager if I am struggling to manage my workload, and what is the best way to ask for assistance?
  • Ans. 

    Approach manager openly and honestly, provide specific examples of workload struggles, and suggest potential solutions.

    • Schedule a meeting with your manager to discuss your workload challenges

    • Be honest and transparent about the specific tasks or projects that are overwhelming you

    • Provide examples of how the workload is impacting your productivity and quality of work

    • Suggest potential solutions such as prioritizing tasks, ...

  • Answered by AI
Round 4 - HR 

(4 Questions)

  • Q1. What other job offers do you currently have, and why are you interested in this company?
  • Ans. 

    I currently have one other job offer, but I am particularly interested in this company due to its innovative projects and strong company culture.

    • Have one other job offer but interested in this company due to innovative projects

    • Impressed by strong company culture

    • Believe this company aligns with my career goals and values

  • Answered by AI
  • Q2. What is the reason for any gaps in your experience?
  • Ans. 

    I have gaps in my experience due to focusing on specialized projects and roles.

    • I have chosen to focus on specific areas of expertise rather than gaining a broad range of experience

    • I have taken on challenging projects that have required a significant time commitment

    • I have prioritized deepening my knowledge in certain technologies or industries over gaining general experience

  • Answered by AI
  • Q3. Can you provide an example of a situation in which you worked under pressure?
  • Ans. 

    I successfully completed a project with a tight deadline by prioritizing tasks and staying focused.

    • Received a project with a short deadline due to unexpected circumstances

    • Created a detailed timeline and prioritized tasks based on urgency

    • Worked extra hours and stayed focused to meet the deadline

    • Successfully completed the project on time and received positive feedback

  • Answered by AI
  • Q4. How do you approach problem-solving, and can you provide a specific situation where your leadership skills have benefited you?
  • Ans. 

    I approach problem-solving by analyzing the issue, brainstorming solutions, and collaborating with team members. My leadership skills were evident when I successfully led a project to implement a new software system.

    • Analyze the problem thoroughly before jumping into solutions

    • Brainstorm potential solutions and evaluate their feasibility

    • Collaborate with team members to gather different perspectives and insights

    • Communicat...

  • Answered by AI

Top TCS Associate Engineer Interview Questions and Answers

Q1. How do you approach problem-solving, and can you provide a specific situation where your leadership skills have benefited you?
View answer (1)

Associate Engineer Interview Questions asked at other Companies

Q1. Count Ways To Reach The N-th Stair Problem Statement You are given a number of stairs, N. Starting at the 0th stair, you need to reach the Nth stair. Each time you can either climb one step or two steps. You have to return the number of dis... read more
Add answer

Graduate Engineer Trainee (Get) interview

user image Arvind Singh Pemawat

posted on 28 Oct 2021

Assistant System Engineer interview
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via TCS and was interviewed in Dec 2024. There was 1 interview round.

Round 1 - Technical 

(6 Questions)

  • Q1. What is hash technology?
  • Ans. 

    Hash technology is a method used to convert data into a fixed-size string of characters, typically used for data security and integrity.

    • Hash technology uses algorithms to generate a unique fixed-size string of characters from input data.

    • It is commonly used for data security, password storage, digital signatures, and data integrity verification.

    • Examples of hash algorithms include MD5, SHA-1, and SHA-256.

  • Answered by AI
  • Q2. What is block chain?
  • Ans. 

    Blockchain is a decentralized, distributed ledger technology used to securely record transactions across multiple computers.

    • Decentralized database

    • Consensus mechanism

    • Immutable record of transactions

    • Cryptographic security

    • Smart contracts

    • Examples: Bitcoin, Ethereum

  • Answered by AI
  • Q3. What is DML?
  • Ans. 

    DML stands for Data Manipulation Language, used to manage data in a database.

    • DML is a subset of SQL (Structured Query Language) used to insert, update, delete, and retrieve data in a database.

    • Examples of DML commands include INSERT, UPDATE, DELETE, and SELECT.

    • DML is essential for managing and manipulating data within a database system.

  • Answered by AI
  • Q4. Convert binay to decimal and viceversa.
  • Ans. 

    Binary to decimal conversion involves multiplying each digit by 2 raised to the power of its position.

    • To convert binary to decimal, start from the rightmost digit and multiply each digit by 2 raised to the power of its position.

    • Add all the results together to get the decimal equivalent.

    • For example, to convert binary 1011 to decimal: 1*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 11.

  • Answered by AI
  • Q5. Find max number in array?
  • Ans. 

    Iterate through array and compare each element to find the maximum number.

    • Iterate through the array using a loop.

    • Compare each element to a variable storing the current maximum number.

    • Update the variable if a larger number is found.

    • Return the maximum number at the end.

  • Answered by AI
  • Q6. Write basic html , for inserting image and create table.
  • Ans. 

    Basic HTML code for inserting image and creating a table

    • Use <img> tag to insert an image with src attribute

    • Use <table>, <tr>, <td> tags to create a table structure

    • Specify image source and table content within respective tags

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just have concept of Oops, one programming language, DBMS and SQL, core engineering subjects and just know definition of recent technology

Top TCS System Engineer Interview Questions and Answers

Q1. Election Winner Determination In an ongoing election between two candidates A and B, there is a queue of voters that includes supporters of A, supporters of B, and neutral voters. Neutral voters have the power to swing the election results ... read more
View answer (8)

System Engineer Interview Questions asked at other Companies

Q1. Election Winner Determination In an ongoing election between two candidates A and B, there is a queue of voters that includes supporters of A, supporters of B, and neutral voters. Neutral voters have the power to swing the election results ... read more
View answer (8)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
-

I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(6 Questions)

  • Q1. What are the 4 pillars of C++ ?
  • Ans. 

    The 4 pillars of C++ are encapsulation, inheritance, polymorphism, and abstraction.

    • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

    • Inheritance: Creating new classes from existing classes, inheriting their attributes and methods.

    • Polymorphism: Ability to present the same interface for different data types.

    • Abstraction: Hiding complex implementation details and showing only the

  • Answered by AI
  • Q2. What is Normalization in SQL?
  • Ans. 

    Normalization in SQL is the process of organizing data in a database to reduce redundancy and improve data integrity.

    • Normalization involves breaking down a database into smaller, more manageable tables and defining relationships between them.

    • It helps in reducing data redundancy by storing data in a structured and organized manner.

    • Normalization ensures data integrity by preventing anomalies such as insertion, update, an...

  • Answered by AI
  • Q3. Example of abstract class ?
  • Ans. 

    Abstract class is a class that cannot be instantiated and may contain abstract methods.

    • Cannot be instantiated directly

    • May contain abstract methods that must be implemented by subclasses

    • Used to define a common interface for a group of related classes

  • Answered by AI
  • Q4. SQL Commands ?
  • Q5. Pseudo code for prime number.
  • Ans. 

    Pseudo code for prime number is a simple algorithm to determine if a given number is prime or not.

    • Start by checking if the number is less than 2, if so it is not prime

    • Then iterate from 2 to the square root of the number and check if it is divisible by any number in that range

    • If it is not divisible by any number, then it is a prime number

  • Answered by AI
  • Q6. Create Login page using html, css and js
  • Ans. 

    Create a login page using HTML, CSS, and JS

    • Use HTML for structure and form elements

    • Style the page using CSS for layout and design

    • Implement client-side validation using JavaScript

    • Handle form submission and authentication using JS

  • Answered by AI
Round 2 - HR 

(1 Question)

  • Q1. Question related to my hobby?

Interview Preparation Tips

Topics to prepare for TCS Assistant System Engineer Trainee interview:
  • C++
  • SQL
  • HTML
  • CSS
  • Javascript

Top TCS Assistant System Engineer Trainee Interview Questions and Answers

Q1. #include int main() { int any = ' ' * 10; printf("%d", any); return 0; } What is the output?
View answer (2)

Assistant System Engineer Trainee Interview Questions asked at other Companies

Q1. #include int main() { int any = ' ' * 10; printf("%d", any); return 0; } What is the output?
View answer (2)
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TCS Interview FAQs

How many rounds are there in TCS interview?
TCS interview process usually has 2-3 rounds. The most common rounds in the TCS interview process are Technical, HR and Aptitude Test.
How to prepare for TCS interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at TCS. The most common topics and skills that interviewers at TCS expect are Java, Spring Boot, Microservices, SQL and Python.
What are the top questions asked in TCS interview?

Some of the top questions asked at the TCS interview -

  1. What is FDS , did you create and if create tell me the requireme...read more
  2. How to display multiple screen in one lay...read more
  3. What is the use of constructor? When it will be cal...read more
How long is the TCS interview process?

The duration of TCS interview process can vary, but typically it takes about less than 2 weeks to complete.

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