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Tata Elxsi Interview Questions and Answers
161 Interview questions
To find duplicate elements in an array, use a hash set to track occurrences efficiently.
1. Use a hash set to store unique elements as you iterate through the array.
2. For each element, check if it exists in the set. If it does, it's a duplicate.
3. Example: For array ['apple', 'banana', 'apple', 'orange'], 'apple' is a duplicate.
4. Alternatively, sort the array and check adjacent elements for duplicates.
Encapsulation is a fundamental OOP principle that restricts direct access to an object's data and methods.
Encapsulation helps in data hiding, protecting the internal state of an object.
It allows controlled access through public methods (getters and setters).
Example: A class 'BankAccount' can have private fields like 'balance' and public methods to deposit or withdraw funds.
Encapsulation improves code maintainabili...
Abstraction is a fundamental OOP concept that hides complex implementation details, exposing only essential features to the user.
Abstraction allows focusing on what an object does instead of how it does it.
Example: In a car, you use the steering wheel to drive without knowing the mechanics behind it.
In Java, abstraction can be achieved using abstract classes and interfaces.
Example: An abstract class 'Animal' can d...
A pen's writing mechanism should be tested for ink flow, durability, and user comfort during writing.
Ink Flow Test: Verify that the pen writes smoothly without skipping or blotting. Example: Write continuously for 5 minutes and check for consistency.
Durability Test: Assess the pen's ability to withstand drops or pressure. Example: Drop the pen from a height of 1 meter and check for functionality.
Comfort Test: Eval...
Gherkin test cases define the steps for a backup process in a clear, structured format for behavior-driven development.
Feature: Backup Process - This section describes the overall functionality being tested, e.g., 'Backing up user data to a secure location.'
Scenario: Successful Backup - A scenario that outlines the steps for a successful backup, e.g., 'Given the user is logged in, when they initiate a backup, then...
Data structures are organized formats for storing and managing data efficiently for various operations.
1. Definition: A data structure is a way of organizing data to enable efficient access and modification.
2. Types: Common types include arrays, linked lists, stacks, queues, trees, and graphs.
3. Arrays: Fixed-size structures that store elements of the same type in contiguous memory locations.
4. Linked Lists: Colle...
OOP concepts are foundational principles in software development that enhance code organization and reusability.
Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).
Inheritance: Mechanism to create a new class based on an existing class, inheriting its properties (e.g., a 'Dog' class inheriting from an 'Animal' class).
Polymorphism: Ability to present the same interface ...
I expect a collaborative environment, opportunities for growth, and a focus on innovation in automation technologies.
A supportive team culture that encourages knowledge sharing and collaboration, like regular team brainstorming sessions.
Opportunities for professional development, such as training programs or certifications in the latest automation tools.
A focus on innovative projects that challenge my skills and a...
Design input is what the product should do, design output is what the product actually does.
Design input is the requirements and specifications provided by the customer or user.
Design output is the final product or system that meets the design input requirements.
Design input is the 'what', design output is the 'how'.
Examples: Design input - product must be waterproof. Design output - product passed waterproof test...
Design verification ensures the product is designed correctly, while design validation ensures the correct product is designed.
Design verification confirms that the design output meets the design input requirements.
Design validation confirms that the product meets user needs and intended use.
Verification is done before validation in the design process.
Verification can include activities like reviews, inspections, ...
Tata Elxsi Interview Experiences
320 interviews found
Selected
(1 Question)
- Q1. Concepts of Business analyst, project experience, knowledge about the tools used for business processing
(2 Questions)
- Q1. Technical details about telecom domain
- Q2. Use cases about 5G & AI ML
- Ans.
5G and AI/ML use cases are revolutionizing industries by enabling faster data processing and decision-making.
5G enabling real-time data transmission for AI/ML algorithms
AI/ML optimizing network performance and resource allocation in 5G networks
AI-powered predictive maintenance for 5G infrastructure
AI-driven personalized content delivery over 5G networks
AI/ML enhancing cybersecurity measures in 5G networks
Boobalan S
(2 Questions)
- Q1. Multithreading, Collection list
- Q2. Java Program on Strings, Threads
(2 Questions)
- Q1. Project Explanation
- Q2. Git Commands, Linux Commands
Selected
(2 Questions)
- Q1. Swap two variables without temp
- Ans.
Use XOR operation to swap two variables without using a temporary variable
Use XOR operation to swap two variables without using a temporary variable
Example: a = 5, b = 10. a = a XOR b, b = a XOR b, a = a XOR b. Now a = 10, b = 5
- Q2. Multiply two matrices in CUDA
- Ans.
Matrix multiplication in CUDA involves parallelizing the computation across multiple threads on the GPU.
Use CUDA kernels to launch parallel threads for matrix multiplication.
Divide the matrices into blocks and load them into shared memory for faster access.
Implement the matrix multiplication algorithm in CUDA C/C++.
Ensure proper memory management and synchronization between threads.
(1 Question)
- Q1. Merge two sorted arrays
- Ans.
Merge two sorted arrays into a single sorted array
Create a new array to store the merged result
Iterate through both arrays simultaneously and compare elements
Add the smaller element to the new array and move to the next element in that array
Continue until all elements from both arrays are merged
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. What is transformers working principle of transformers
- Ans.
Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
Transformers have two coils of wire, known as primary and secondary coils, which are magnetically coupled.
When an alternating current flows through the primary coil, it creates a changing magnetic field which induces a voltage in the secondary coil.
The ratio of the number of turns in the primary an...
- Q2. If 22 kv line fuse blows up u and another Operator present at site how u will replace the fuse and what safety measures will you take to replace fuse , what are the safety PPE (personal protection Equipme...
- Ans.
To replace a blown 22 kv line fuse, safety measures include de-energizing the line, using proper PPE, and following proper procedures.
De-energize the line before attempting to replace the fuse
Use insulated tools to avoid electrical shock
Wear appropriate PPE such as rubber gloves, safety glasses, and flame-resistant clothing
Follow proper lockout/tagout procedures to ensure the line remains de-energized during the replac...
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. Project execution details
- Q2. Signal conditioning circuits
Sundaravalli .S
Very easy and comfortable
(2 Questions)
- Q1. Oops and java is the most asked topic
- Q2. Inheritance, family background, passion
(2 Questions)
- Q1. Tell me about yourself
- Q2. Why you want this job
Human Resource and Administration Executive Interview Questions & Answers
Anonymous
posted on 16 Jul 2025
Selected
I appeared for an interview before Jul 2024, where I was asked the following questions.
- Q1. Could you elaborate on your work experience, contributions, and the skills you have developed?
- Ans.
Experienced HR professional with a strong background in recruitment, employee relations, and organizational development.
Led recruitment efforts for over 100 positions, reducing time-to-hire by 30% through streamlined processes.
Implemented an employee engagement program that increased retention rates by 15% within one year.
Developed and facilitated training workshops on conflict resolution and team building, enhancing w...
- Q2. How can you utilize your experience to contribute to our organization?
- Ans.
I can leverage my HR expertise to enhance employee engagement, streamline processes, and foster a positive workplace culture.
Implement employee engagement initiatives, such as regular feedback sessions, to boost morale and productivity.
Utilize data analytics to identify trends in employee turnover and develop targeted retention strategies.
Streamline recruitment processes by adopting technology, reducing time-to-hire an...
I applied via Campus Placement
It had aptitude along with 3 coding question
(1 Question)
- Q1. They asked about array, pointers
(1 Question)
- Q1. About yourself, fav show, how will you handle yourself in pressure situations
Selected
I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 3 interview rounds.
30 questions combination of Logical, numeric, verbal and 2 coding questions.
(2 Questions)
- Q1. Self Introduction
- Ans.
I'm a passionate Software Engineer with a strong background in full-stack development and a love for solving complex problems.
Graduated with a degree in Computer Science from XYZ University, where I developed a keen interest in software development.
Worked at ABC Corp as a Software Engineer, where I led a team to develop a web application that improved user engagement by 30%.
Proficient in languages like JavaScript, Pyth...
- Q2. Questions on core Java concepts
(2 Questions)
- Q1. Tell me about yourself
- Q2. Your strength and weakness
- Ans.
Strength: Problem-solving skills. Weakness: Overthinking.
Strength: I have strong problem-solving skills which help me in finding efficient solutions to complex issues.
Weakness: Sometimes I tend to overthink situations, which can lead to unnecessary stress and delays in decision-making.
Interview Preparation Tips
(2 Questions)
- Q1. OOPS concept questions asked
- Q2. Basic programming questions asked
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Senior Engineer
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