BT Group Interview Questions, Process, and Tips

Q1. Roman to integer
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Q1. Bloc structure explanation with clean architecture
Ans. 
Bloc structure is a design pattern used in clean architecture to separate business logic from UI.
• Bloc stands for Business Logic Component

• It helps in separating UI components from business logic

• Bloc communicates with the repository layer to fetch data

• Bloc pattern is commonly used in Flutter for state management
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Q1. Question on standard costing I;e Material variance, price variance
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Q2. What will you do if there is significant variance in forecast and actual and management has asked to reduce the gap. What will you do?
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Basic aptitude questions.

A take-home test consisting of one question related to the Bloc pattern and another basic question about Dart.

Q1. Design a validator and write a running code within 30 mins
Ans. 
Design a validator and write a running code within 30 mins
• Define the validation rules and criteria

• Implement the validation logic using a programming language of choice

• Test the validator with different input data to ensure accuracy
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Java and spring related questions

Q1. Stream related comparator
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Q2. Longest increasing subsequence
Ans. 
Find the longest increasing subsequence in an array of integers.
• Use dynamic programming to keep track of the longest increasing subsequence ending at each index.

• Iterate through the array and update the longest increasing subsequence for each index.

• Return the maximum length of the longest increasing subsequence found.
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Q1. Discussion Related to experience and java related questions like internals of hashmap, treemap
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Q2. Design instagram story
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Q1. Questions related to current project and overall experience
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Q2. Behaviour questions as well
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