Tata Elxsi Interview Questions, Process, and Tips

Q1. What are your strengths and weaknesses?
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Q1. Basic switching
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Q2. Basic routing
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Q1. Explaining oops
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OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating objects that interact with each other to solve complex problems

• Key principles of OOPs include encapsulation, inheritance, and polymorphism

• Encapsulation allows objects to hide their internal state and require all interaction to be performed through an object's methods

• Inhe...read more
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Q2. What design pattern you used
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I have used the Singleton design pattern in my previous projects.
• Used to ensure a class has only one instance and provides a global point of access to it

• Helps in managing global resources efficiently

• Example: Database connection manager in a web application
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Q3. What is primary key
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Primary key is a unique identifier for each record in a database table.
• Primary key ensures each record in a table is unique

• It can be a single column or a combination of columns

• Primary key values cannot be NULL

• Example: 'ID' column in a 'Users' table
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Q4. What is foreign key
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Foreign key is a field in a database table that links to a primary key in another table.
• Foreign key ensures referential integrity between related tables

• It helps maintain relationships between tables

• Foreign key constraints can be used to enforce data integrity
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Q5. What is unique key
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A unique key is a field or combination of fields in a database table that uniquely identifies each record in the table.
• A unique key ensures that no two records in a table have the same values for the specified key fields.

• It can be a single field or a combination of multiple fields.

• Unique keys are used to enforce data integrity and prevent duplicate records.

• Examples: Primary key, Unique constraint
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Q6. Different types of dbs
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Different types of databases include relational, NoSQL, graph, and document databases.
• Relational databases store data in tables with rows and columns (e.g. MySQL, PostgreSQL)

• NoSQL databases are non-relational and can handle unstructured data (e.g. MongoDB, Cassandra)

• Graph databases use graph structures for semantic queries (e.g. Neo4j, Amazon Neptune)

• Document databases store data in documents (e.g. Couchbase, Firebase)
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Includes basic concepts of computer networks, computer architecture and technical MCQ questions. First round also includes 3 coding questions of easy level. Those who solved 2 coding questions got selected for next round.

Q1. Question from oops concept, c++ and JAVA were asked.
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Q2. Questions data structures like how to reverse a linked list were asked.
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Q3. Explain packages in java
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Packages in Java are used to organize classes and interfaces into namespaces for better code organization and reusability.
• Packages help in avoiding naming conflicts by grouping related classes together.

• Packages can be nested within each other to create a hierarchical structure.

• Packages are declared using the 'package' keyword at the beginning of a Java file.

• Example: 'package com.example.myapp;' declares a package named
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Q4. Explain the use of public static void main
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The public static void main method is the entry point of a Java program.
• It is a mandatory method in Java programs, as it is the starting point of execution.

• The 'public' keyword allows the main method to be accessed from outside the class.

• The 'static' keyword allows the main method to be called without creating an instance of the class.

• The 'void' keyword indicates that the main method does not return any value.

• The 'main...read more
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Q1. Questions about the awards and certification i mentioned in my resume
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Q2. Common HR questions like location....salary......why tata elxsi ect..
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Aptitude and coding test

Coding test was moderate at that time

Q1. Tell me about your project
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Q2. Basic programming questions
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Q1. I have not attended
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There was an coding round. there was 10 MCQ questions and also 2 coding questions

Q1. About my project
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Q2. And asked about my resume
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Q1. General questions like ready to relocate
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Q2. Expected CTC, and normal talk with hr
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