WM Global Technology Services India Pvt.Ltd Team Lead Interview Questions and Answers

Q1. Qualification and experience
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Q2. About my previous organization
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Q1. Was on team leader
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Q1. Collection, hashmap, concurrent hash map. Hash table.
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Q2. Collection, multithreading, synchronization locks
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Q1. COBOL SCNEARIO BASED QUESTIONS
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Q1. Toughest coding done so far
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Implementing a complex algorithm for optimizing search results in a large-scale e-commerce platform.
• Developed a custom search algorithm to improve search relevance and speed

• Implemented data structures like trie and inverted index for efficient search

• Optimized the algorithm to handle millions of products and user queries

• Used techniques like caching and parallel processing to enhance performance
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Q1. Performance optimisation
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Q1. Lods,parameters
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Q1. Sql queries on analytical queries
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Q2. Different constraints and join methods
Ans. 
Different constraints and join methods in database queries
• Constraints in database queries ensure data integrity and enforce rules on data

• Join methods in database queries are used to combine rows from two or more tables based on a related column between them

• Examples of constraints include primary key, foreign key, unique key, and check constraints

• Examples of join methods include inner join, outer join (left, right, full
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It was mostly on sub queries.

Q1. Share roles n responsibilities
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32 Mcq questions include aptitude and scenario questions

Q1. SQL n manual testing
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Q1. How are you doing
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Q2. Which was your previous institution
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Q1. Oops concept asked in frame works
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Q2. Inheritance encapsulation abstracts
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Q1. Salary expectations
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Q1. Basic java 8 questions
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