yellow.ai SDE Interview Questions and Answers

Three coding problems were asked one was to print frequency of each character in a string, second was also similar to this problem unable to recall it and third problem was given an array of string and range from L to R find the nth character if all strings from L to R is concatenated and sorted. Apart from these three coding problems there were 10 easy MCQ's.

Q1. Basic questions on java and spring boot, annotations, oops concept.
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Q2. Code LRU cache(with no updates), just to implement push and pop operation with given window size of 4.
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Q1. It was a design round where I was asked to write class models of a in memory session management system without using tools like redis.
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Print duplicate values using java 8

Q1. Basics of java, Springboot, REST,
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Q2. AWS is added advantage
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Yes, AWS is considered an added advantage for software developers due to its scalability, reliability, and cost-effectiveness.
• AWS provides scalable cloud computing resources, allowing developers to easily adjust to changing demands.

• AWS offers reliable infrastructure with high availability and data durability, reducing the risk of downtime.

• Using AWS can be cost-effective as developers only pay for the resources they use...read more
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Q1. API Gateway, Core Java,
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Q1. Core Java, Servlet, JSP, SQL
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Q1. Functional And Technical Question On Java, Application Support, SQL
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Q1. HR Questions, Company Details, Salary Details
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Q1. Discussion about past projects
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I was asked 4-5 questions of generic aptitude questions in the span of 20-25 minutes. The questions was basic maths and pattern identification for the most part. 1 time and work question.

Interview for backend developer with experience in django

Q1. Writing ORM queries in django
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Q2. Database design with foregin and many to many fields
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Q3. Explain django's request response flow
Ans. 
Django's request response flow involves the request being handled by URL dispatcher, views, middleware, and templates before generating a response.
• Request is received by URL dispatcher which maps the URL to a view function

• View function processes the request, interacts with models if needed, and returns a response

• Middleware can intercept the request and response for additional processing

• Templates are used to generate HT
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