Fourkites Software Developer Interview Questions and Answers

Will be given Requirement to write code for Restraunt. Based on that have write code for delivering orders by delivery boys.

Q1. OOPS Concepts, Java Basics, Collections, MultiThreading
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Q1. Tell me about yourself.
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There was coding test

Q1. 2 technical rounds
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Q2. Merge sort algorithm
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Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts them separately, and then merges them back together in sorted order.
• Divide the input array into two halves

• Recursively sort each half

• Merge the sorted halves back together
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Q1. Leetcode Easy question
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Q1. Linux commands,
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Q2. Cloud technologies different services (iaas, paas, saas)
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Cloud technologies offer different services like IaaS, PaaS, and SaaS for varying levels of control and management.
• IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet, such as virtual servers and storage.

• PaaS (Platform as a Service) offers a platform allowing customers to develop, run, and manage applications without dealing with infrastructure.

• SaaS (Software as a Service) deli...read more
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Q3. What do you know AWS
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Q1. Shortest path sum with negative integers allowed in matrix. Path starts from top left to bottom right.
Ans. 
Use dynamic programming to find the shortest path sum with negative integers allowed in a matrix.
• Implement dynamic programming to store the minimum sum at each cell

• Consider negative integers when calculating the sum of the path

• Start from the top left cell and iterate through the matrix to find the shortest path sum
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Q1. Write spring code
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Spring code is used for building Java applications with ease and efficiency.
• Use @ComponentScan annotation to automatically detect and register Spring beans

• Use @Autowired annotation for dependency injection

• Use @RequestMapping annotation to map HTTP requests to specific handler methods
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Q2. Design pattern questions asked
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Q1. How to optimize build in Angular?
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Optimizing build in Angular involves reducing bundle size, enabling lazy loading, using AOT compilation, and leveraging tree shaking.
• Reduce bundle size by removing unused code and optimizing imports

• Enable lazy loading to load modules on demand instead of all at once

• Use Ahead-of-Time (AOT) compilation to pre-compile templates and reduce runtime overhead

• Leverage tree shaking to eliminate dead code and reduce bundle size
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