Skip to main content

TCS interview questions that candidates have encountered in 2024

 

Technical Questions

  1. Java:

    • Explain the difference between HashMap and Hashtable.
    • How does Java handle memory management, and what is garbage collection?
    • What are the features introduced in Java 17?
    • Explain method overloading and method overriding with examples.
    • What is the purpose of the final, finally, and finalize keywords in Java?

  2. Data Structures and Algorithms:

    • How do you find the middle element of a linked list in a single pass?
    • Explain different sorting algorithms and their time complexities.
    • How would you implement a stack using queues?
    • Discuss the difference between depth-first search (DFS) and breadth-first search (BFS).
    • What are the advantages of using a binary search tree over a simple array?

  3. Database Management:

    • What is normalization, and why is it important in databases?
    • Explain the difference between JOIN, LEFT JOIN, and RIGHT JOIN.
    • How would you optimize a slow-running query?
    • What are indexes, and how do they improve query performance?
    • Explain ACID properties in the context of database transactions.

  4. Operating Systems:

    • What is a process, and how does it differ from a thread?
    • Explain the concept of virtual memory.
    • How does a deadlock occur, and how can it be prevented?
    • What are the different types of scheduling algorithms?
    • Describe the differences between Linux and Windows operating systems.

  5. Cloud Computing:

    • What is the difference between SaaS, PaaS, and IaaS?
    • Explain how cloud computing is different from traditional computing.
    • What are the security challenges in cloud computing?
    • How does auto-scaling work in cloud environments?
    • Explain the concept of microservices architecture.

  6. Software Development Lifecycle:

    • What are the different phases of the software development lifecycle (SDLC)?
    • How do Agile and Waterfall methodologies differ?
    • Explain the role of Continuous Integration and Continuous Deployment (CI/CD) in DevOps.
    • What is the importance of version control systems like Git?
    • How do you ensure the quality of software during development?

HR Questions

  1. Self-Introduction:

    • Tell me about yourself.
    • What are your strengths and weaknesses?
    • Why do you want to work at TCS?
    • Where do you see yourself in five years?
    • How do you handle stress and pressure?

  2. Behavioral:

    • Describe a challenging situation you faced in your previous job and how you handled it.
    • Have you ever had a conflict with a team member? How did you resolve it?
    • What motivates you to do your best work?
    • How do you prioritize your tasks when working on multiple projects?
    • Can you give an example of a time when you showed leadership?

  3. Company-Specific:

    • What do you know about TCS and its services?
    • How do you think you can contribute to TCS?
    • Why should we hire you over other candidates?
    • Are you willing to relocate or work in different locations?
    • How do you stay updated with the latest trends in technology?

Aptitude Questions

  1. Logical Reasoning:

    • Solve a series of pattern recognition or sequence puzzles.
    • Find the odd one out in a given set of figures.
    • Solve problems related to syllogisms.

  2. Quantitative Aptitude:

    • Solve questions on percentages, ratios, and proportions.
    • Work on time and work-related problems.
    • Solve questions on probability and permutations/combinations.

  3. Verbal Ability:

    • Identify the correct synonym or antonym for a given word.
    • Correct the grammatical errors in a sentence.
    • Arrange a set of jumbled sentences to form a coherent paragraph.

These questions are meant to give you an idea of the kind of topics and problems that TCS might focus on during their interview process in 2024. Preparing for these topics thoroughly will give you a strong foundation for your interview.

Labels:

Comments

Post a Comment

Popular posts from this blog

How to Create Immutable Class and Object in Java

How to create Immutable Class and Object in Java - Tutorial Example Writing or creating immutable classes in Java is becoming popular day by day, because of the concurrency and multithreading advantages provided by immutable objects. Immutable objects offer several benefits over a conventional mutable object, especially while creating concurrent Java applications. An immutable object not only guarantees the safe publication of an object’s state but also can be shared among other threads without any external synchronization. In fact, JDK itself contains several immutable classes like String , Integer , and other wrapper classes. For those who don’t know, immutable objects are those whose state cannot be changed once created. A good example is java.lang.String — once created, a String object cannot be modified. Any operation that seems to modify a String object (like trim() , toUpperCase() , etc.) actually results in a new object. What is an Immutable Class in Java? An immutabl...
Post a Comment
Read more

JDK 25: The new features in Java 25

 Java Development Kit (JDK) 25, scheduled for release in September 2025, is set to introduce several significant enhancements. Here's an overview of the notable features: 1. Stable Values API (Preview): This feature introduces stable values—objects holding immutable data treated as constants by the Java Virtual Machine (JVM). By allowing greater flexibility in initialization timing compared to final fields, stable values aim to improve application startup times. They enable performance optimizations akin to constant-folding, previously exclusive to JDK code, and ensure thread-safe, single-time initialization. This decouples the creation of stable values from their initialization without significant performance penalties.  2. Removal of 32-bit x86 Port: JDK 25 plans to eliminate both the source code and build support for the 32-bit x86 port, which was deprecated in JDK 24. Maintaining this port has become less beneficial, especially with the challenges in keeping it updated wit...
Post a Comment
Read more

Ace Your Java Interview: Top 50 Java Interview Questions & Answers (2025)

  Introduction Java continues to be a top programming language in 2025 , widely used in enterprise applications, microservices, cloud computing, and AI-based systems . If you're preparing for a Java developer interview , you must be well-versed in Core Java, Java 8-21 features, Spring Boot, Microservices, and Cloud technologies . This guide covers the top 50 Java interview questions for freshers and experienced professionals , ensuring you are ready for your next interview! Table of Contents Core Java Interview Questions Java 8, Java 11, and Java 21 Features OOP and Design Patterns Multithreading and Concurrency JVM, Garbage Collection & Memory Management Collections Framework Spring Boot & Microservices Cloud Technologies (AWS, Azure, GCP) Real-World Java Interview Scenarios 1. Core Java Interview Questions Q1: What are the key features of Java? Answer: Platform Independence – Java runs on JVM , making it OS-independent. Object-Oriented – Java follows...
Post a Comment
Read more