LOYALTY METHODS Senior Software Engineer Interview Questions and Answers

It was about DS Algo and Java garbage collection,multithreading

Q1. Low level design of rate limiter
Ans. 
Rate limiter is a system that controls the rate of traffic sent or received by a network interface.
• Implement a token bucket algorithm to track and limit the rate of requests

• Use a sliding window algorithm to track the number of requests within a specific time frame

• Consider using a distributed rate limiter for scalability and fault tolerance
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Q2. Springboot basics, java basics, future interfaces, basic sql queries
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It's very easy to write the code every simple codes are they asked

The gd topic is cyber security it's very easy to make a conversation to them

Q1. Questions based on DSA
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Q1. Java specific Interview
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Q1. Hiring Manager Interview
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Q1. Ds algo problem solving round. Question was based on graph
Ans. I had to explain the logic and code
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Q2. I was asked only 1 question and i have to write code and explain the logic
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Medium range 2 questions

Q1. Its design round question
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Q1. Snake and ladder lld
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Q2. Spring question on annotations
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Q1. Find k closest elements
Ans. 
Find k closest elements in an array
• Sort the array based on the absolute difference between each element and the target element

• Return the first k elements from the sorted array
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Q2. K Closest elements
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Q1. Rest api vs kafla
Ans. 
REST API is a standard way of building web services, while Kafka is a distributed streaming platform for handling real-time data feeds.
• REST API is used for building web services that follow the REST architectural style

• Kafka is used for handling real-time data feeds and building real-time data pipelines

• REST API is synchronous, while Kafka is asynchronous and can handle high throughput and low latency data streams
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Input output questions on C, C++ and java

Machine coding round 5-6 coding questions based on string and arrays. Medium level

Mini project : They ask to code a system with the given requirements