Brillio Team Lead Interview Questions and Answers

Q1. .NET MVC, .NET Core, .NET
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Q2. MS SQL, MongoDB, NoSQL
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Q1. AWS Lambda Design patterns SQL Mongo
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Q2. Problem Solving to print K Largest elements in an array
Ans. 
Find the K largest elements in an array using efficient algorithms.
• Use a max-heap to extract the largest elements efficiently.

• Example: For array [3, 1, 5, 12, 2] and K=3, the output is [12, 5, 3].

• Alternatively, sort the array and select the last K elements.

• Example: Sorting [3, 1, 5, 12, 2] gives [1, 2, 3, 5, 12], K=3 results in [5, 12, 3].

• Consider using Quickselect for average O(n) time complexity.
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Q1. What is the implementation process for Kafka?
Ans. 
Kafka implementation involves setup, configuration, and integration for efficient data streaming and processing.
• 1. Install Kafka: Download and install Kafka from the official website, ensuring you have Java installed.

• 2. Configure Kafka: Edit the server.properties file to set broker ID, log directories, and other configurations.

• 3. Start Zookeeper: Run Zookeeper, which Kafka relies on for managing distributed brokers.

• 4. ...read more
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Q2. What is the method to count the frequency of characters in a string using Java 8?
Ans. 
Java 8 provides a concise way to count character frequencies in a string using streams and collectors.
• Use the `chars()` method to convert the string into an IntStream of characters.

• Apply `boxed()` to convert IntStream to Stream<Character>.

• Use `collect()` with `Collectors.groupingBy()` to group characters and count their occurrences.

• Example: `Map<Character, Long> frequencyMap = str.chars().mapToObj(c -> (...read more
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Q3. What was your exposure to Google Cloud Platform (GCP) and how did you utilize it in your previous project?
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Q4. What is your knowledge of the healthcare domain?
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I was asked 2 programming questions.

Q1. Scenario based question. What if someone creates new user with 1st name and last name but backend developer forgot to write code to store last name. How will data be corrected.
Ans. 
Addressing a data storage issue for user last names in a system.
• Identify the affected records and gather user input for last names.

• Implement a temporary solution to store last names until the backend is fixed.

• Communicate with the backend developer to prioritize the fix.

• Consider a data migration script to update existing records once the backend is corrected.

• Example: If a user is created as 'John Doe' but only 'John' is...read more
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Mcq tests on java ,springboot and data base concepts

Q1. Techno managerial round on last project worked.Discussion about project you are going to work.
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Q1. Speak something about your self
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Q2. Explanation on general programming language I have learnt
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Q3. Questions about OOPs andJava
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Q1. Core Java question and grilling on that
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Q2. Write code binary searching algorithm.
Ans. 
Binary search algorithm efficiently finds the target value in a sorted array.
• Divide array in half and compare target with middle element

• If target is smaller, search left half; if larger, search right half

• Repeat process until target is found or subarray is empty
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Q3. Give example of any design pattern
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Q1. Core Java, Java 8 , rest API
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Q2. Sql queries on self join and sorting on one field of n employee object
Ans. 
Self join in SQL allows comparing rows within the same table, useful for hierarchical data like employees.
• Self join uses the same table twice with different aliases. Example: SELECT a.name, b.name FROM employees a JOIN employees b ON a.manager_id = b.id;

• Sorting can be applied using ORDER BY. Example: SELECT * FROM employees ORDER BY salary DESC;

• Self joins are useful for hierarchical queries, like finding employees unde...read more
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