FIS Senior Associate Interview Questions and Answers

Q1. Where do we use BigInteger in java ?
Ans. 
BigInteger is used for mathematical operations involving very large integers in Java.
• BigInteger is used when the range of values supported by primitive data types like int and long is not sufficient.

• It is commonly used in cryptography and security applications.

• It provides methods for arithmetic, bitwise, and logical operations on large integers.

• Example: calculating factorial of a large number, generating large prime nu
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Q2. Merge Sort Algo code in java
Ans. 
Merge Sort Algo code in java
• Divide the array into two halves

• Recursively sort the two halves

• Merge the sorted halves

• Time complexity: O(n log n)
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Prepare normal for aptitude - maths, quant, analytic

My GD topic was Is internet good for students or not

I didn't attempt this as I was noob back in third year Engg

Q1. Basic questions can you relocate, tell me about ur GD and composition
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Q1. What is n-tier architecture
Ans. 
n-tier architecture is a software design pattern that divides an application into logical layers.
• It separates presentation, application processing, and data management functions.

• Each layer can be developed and maintained independently.

• Examples include 3-tier and 4-tier architectures.

• It improves scalability, maintainability, and flexibility of the application.
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Q1. What is your expectation from company
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