LTIMindtree Interview Questions, Process, and Tips

It was WeCP based test

Q1. Explain Spark Architecture in detail
Ans. 
Spark Architecture is a distributed computing framework that provides high-level APIs for in-memory computing.
• Spark Architecture consists of a cluster manager, worker nodes, and a driver program.

• It uses Resilient Distributed Datasets (RDDs) for fault-tolerant distributed data processing.

• Spark applications run as independent sets of processes on a cluster, coordinated by the SparkContext object.

• It supports various data ...read more
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Q2. Explain higher order function, closure, anonymous function, map, flatmap, tail recursion
Ans. 
Higher order functions, closures, anonymous functions, map, flatmap, and tail recursion are key concepts in functional programming.
• Higher order function: Functions that can take other functions as arguments or return functions as results.

• Closure: Functions that capture variables from their lexical scope, even when they are called outside that scope.

• Anonymous function: Functions without a specified name, often used as a...read more
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It was basic aptitude questions

Q1. What language are you comfortable with
Ans. 
I am comfortable with English, Spanish, and French.
• English

• Spanish

• French
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Q2. What is oops? and what are types in it
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OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
• Types of OOPs include: Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects ...read more
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Aptitude test , in which reasoning is there and maths basic question were there

Q1. What are friend function in c++
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Q2. What are oops concept
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Q1. Difference between Interface and abstract class
Ans. 
Interface is a contract that defines the methods a class must implement, while abstract class can have both implemented and abstract methods.
• Interface cannot have method implementations, while abstract class can have both implemented and abstract methods.

• A class can implement multiple interfaces, but can only inherit from one abstract class.

• Interfaces are used to achieve multiple inheritance in Java, while abstract cla...read more
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Q1. What is JSON Path
Ans. 
JSON Path is a query language used to navigate and extract data from JSON documents.
• JSON Path uses dot notation to access nested elements in a JSON document

• It can be used to filter and extract specific data from a JSON structure

• Examples: $.store.book[0].title, $.employees[?(@.department == 'Engineering')]
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Q1. Tell about yourself
Ans. 
I am a data engineer with a strong background in programming and data analysis.
• Experienced in designing and implementing data pipelines

• Proficient in programming languages like Python, SQL, and Java

• Skilled in working with big data technologies such as Hadoop and Spark
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Q2. Over all questions in snowflake
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Q1. Rate ur self in sql and snowflake
Ans. 
I rate myself highly in SQL and Snowflake, with extensive experience in both technologies.
• Proficient in writing complex SQL queries for data manipulation and analysis

• Skilled in optimizing queries for performance and efficiency

• Experienced in working with Snowflake for data warehousing and analytics

• Familiar with Snowflake's unique features such as virtual warehouses and data sharing
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Q2. Sql questions and snowflake questions
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