Infosys BPM ETL Talend Developer Interview Questions and Answers

Coding test

Q1. Technical round was asked technical questions
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Aptitude and resoninh test
Coding test ,

Coding test,coding skills in all languages

Basic question on probablity and reasoing and some more presence of mind relates question

Program on find duplicate on array and rever the string

Q1. Difference between linked list and array list
Ans. 
Linked list is a data structure where elements are stored in nodes with pointers to the next node, while array list is a dynamic array that can grow or shrink in size.
• Linked list allows for efficient insertion and deletion of elements at any position, while array list has slower insertion and deletion times due to shifting elements.

• Linked list uses more memory than array list because of the additional pointers, while a...read more
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Q2. What is hashmap and when it is used
Ans. 
HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• HashMap is used when fast retrieval of values based on keys is required.

• It is commonly used in scenarios where a large amount of data needs to be stored and accessed efficiently.

• Example: Storing user information where the key is the user ID and the value is the user details.
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In Aptitude test in Math & Reasoning &English is be must for 1st round.

In Coding Round first of all basic programing language C & 2nd One Oops language & DBMS must be knowledge. And then coding profile is above.