LTIMindtree Senior Software Engineer Interview Questions, Process, and Tips

Real case scenarios based on industry standards are provided.

Q1. How flexible are you with working hours?
Ans. 
I am flexible with working hours and can adjust as needed.
• I am willing to work extra hours when necessary to meet deadlines.

• I can also adjust my schedule to accommodate team meetings or client calls in different time zones.

• I understand the importance of work-life balance and will communicate any scheduling conflicts in advance.
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Q2. What are your expectations regarding the work and how do you believe it will fit your career goals?
Ans. 
I expect challenging projects that allow me to utilize my skills and knowledge, while also providing opportunities for growth and advancement in my career.
• I expect to work on complex software development projects that push me to think creatively and problem-solve efficiently.

• I hope to collaborate with talented team members who can mentor and guide me in areas where I have room for improvement.

• I am looking for a company...read more
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Q1. Explain Solid principles in detail
Ans. 
SOLID principles are a set of five design principles that help to make software more maintainable, scalable, and robust.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open-Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Subtypes must be substitutable for their base types.

• I - Interface Segregation Prin...read more
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Q2. Explain the OOPs concepts and describe the design patterns used in your projects
Ans. 
OOPs concepts include encapsulation, inheritance, and polymorphism. Design patterns used in my projects include Singleton and Factory.
• Encapsulation: bundling data and methods that operate on that data within a single unit

• Inheritance: creating new classes from existing ones, inheriting their properties and methods

• Polymorphism: ability of objects to take on many forms, allowing for flexibility and extensibility

• Singleton:...read more
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Q1. 1. How to handle exception in microservices? 2.What is config server 3.ClassNotFoundException vs NoClassDefException
Ans. 
Handling exceptions in microservices, config server, ClassNotFoundException vs NoClassDefException
• 1. Exception handling in microservices involves using try-catch blocks to catch and handle exceptions at the service level.

• 2. Config server is a centralized server that stores configuration information for microservices, allowing them to retrieve configurations at runtime.

• 3. ClassNotFoundException occurs when a class is no...read more
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Q2. 4. What is ConcurrentModificationException
Ans. 
ConcurrentModificationException is a runtime exception thrown when an object is modified concurrently while being iterated.
• Occurs in Java when a collection is modified while being iterated over using an iterator

• Can be avoided by using concurrent collections like ConcurrentHashMap or CopyOnWriteArrayList

• Example: Attempting to remove an element from a list while iterating over it will throw ConcurrentModificationExceptio
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Q3. 5. How HashMap internally works?
Ans. 
HashMap internally uses an array of linked lists to store key-value pairs, with keys hashed to determine the index.
• HashMap uses hashing to determine the index of key-value pairs in the array.

• Collisions are resolved by chaining, where multiple key-value pairs with the same hash are stored in a linked list at the same index.

• When retrieving a value, the key is hashed to find the index, then the linked list at that index i
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Q1. What are the challenges faced in your project?
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Q2. How to increase performance of any app?
Ans. 
To increase performance of an app, optimize code, improve database queries, utilize caching, and scale resources.
• Optimize code by identifying and fixing bottlenecks

• Improve database queries by indexing frequently accessed data

• Utilize caching to store frequently accessed data in memory for faster retrieval

• Scale resources by adding more servers or upgrading hardware
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Q1. Explain about .NET framework
Ans. 
The .NET framework is a software development platform developed by Microsoft for building and running applications.
• Developed by Microsoft

• Supports multiple programming languages like C#, VB.NET, F#

• Consists of a large class library known as Framework Class Library (FCL)

• Provides interoperability with other programming languages and frameworks

• Includes tools for developing web, desktop, and mobile applications
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Q2. Explain about SQL Indexs
Ans. 
SQL indexes are used to improve the performance of queries by allowing the database to quickly retrieve data.
• Indexes are created on columns in a table to speed up data retrieval.

• They work by creating a separate data structure that allows the database to quickly locate rows based on the indexed columns.

• Types of indexes include clustered, non-clustered, unique, and composite indexes.

• Examples of indexes include creating a...read more
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Q1. How to interact with Team
Ans. 
Interacting with the team involves effective communication, collaboration, and building strong relationships.
• Communicate openly and regularly with team members to share progress, updates, and challenges.

• Listen actively to understand different perspectives and ideas within the team.

• Collaborate on projects by dividing tasks, setting goals, and working together towards a common objective.

• Provide support and assistance to ...read more
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Q2. Why we hire you
Ans. 
I have a strong technical background, proven track record of delivering high-quality software, and excellent problem-solving skills.
• Extensive experience in software development with a focus on backend systems

• Proven track record of delivering complex projects on time and within budget

• Strong problem-solving skills and ability to think critically

• Excellent communication and collaboration skills, able to work effectively in
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Q1. Questions from Oracle EBS.
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Q2. Oracle Workflow
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Q3. Oracle OAF
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Q4. Oracle SQL/PL-SQL
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Q1. Java 8 questions
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Q2. Spring boot questions
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Q1. Design patterns
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Q2. Different between hashmap and concurent hashmap
Ans. 
HashMap is not thread-safe while ConcurrentHashMap is thread-safe.
• HashMap is not synchronized and not thread-safe, while ConcurrentHashMap is synchronized and thread-safe.

• ConcurrentHashMap allows multiple threads to read and write concurrently without any external synchronization.

• ConcurrentHashMap achieves thread-safety by dividing the map into segments, each with its own lock.
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