Arcon TechSolutions Backend Developer Interview Questions and Answers

Aptitude and coding and communication skills questions test in the first round.

Q1. What ever we trained and whatever we mentioned in the resume based on that questions will prepared.
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Q1. Hr will as about background and which location we preferred like that.
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Q1. Basics of Java, Spring boot and microservices
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Q1. Java8, spring boot, microservices question at medium level tuff.
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MCQ Test and designing a application

Q1. Multithreading basic and in depth architecture
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Q2. Serial and parallel stream in java
Ans. 
Serial and parallel streams in Java are used for processing collections of data in a sequential or parallel manner.
• Serial streams process elements in a single thread, while parallel streams use multiple threads for faster processing.

• Parallel streams can improve performance for large datasets by utilizing multiple cores of the processor.

• Serial streams are suitable for smaller datasets or when order of processing is impo...read more
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Q1. Questions Related to Basic JavaScript and Node.js, MongoDB, and Mongoose.js.
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Q2. Basic coding problem to test your JS skills.
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Q3. Mongoose aggregations, SQL Joins
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Q4. Problems on API endpoint
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Q1. It is the same as that of the first round but with some intermediate-level questions.
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Q1. Simple nodejs javascript
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Q2. Average nodejs javascript mongodb mysql
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Q3. Average nodejs api design
Ans. 
The average Node.js API design involves creating modular and scalable code, using RESTful principles, and implementing error handling and authentication.
• Use modular code structure to separate concerns and improve maintainability

• Follow RESTful principles for designing API endpoints and handling HTTP methods

• Implement error handling to provide meaningful error messages and handle exceptions

• Include authentication mechanism...read more
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Q1. Tell me about your self ?
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Q2. Why should we hire you?
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Q1. Why should we hire you?
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Q1. Self Introduction about yourself
Ans. 
I am a Backend Associate with experience in developing and maintaining server-side applications.
• Proficient in programming languages like Java and Python

• Experience in working with databases like MySQL and MongoDB

• Familiar with RESTful APIs and microservices architecture

• Strong problem-solving and debugging skills

• Ability to work in a team and collaborate effectively
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Q1. How much you know about who's your admire person in your life ?
Ans. 
My admired person in life is my mother.
• My mother has always been my source of inspiration and support.

• She has taught me the values of hard work, perseverance, and kindness.

• Her selflessness and dedication to her family and community are admirable.

• She has overcome numerous challenges and always remains positive.

• I strive to be like her in both my personal and professional life.
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Q1. How much you have experienced, specify about your experience
Ans. 
I have 3 years of experience in backend development.
• 3 years of experience in backend development

• Proficient in programming languages like Java and Python

• Experience with databases like MySQL and MongoDB

• Familiarity with RESTful APIs and web services

• Knowledge of version control systems like Git
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Q1. Do you have all document like your graduation and experience certificate
Ans. 
Yes, I have all the required documents.
• I have my graduation certificate from XYZ University.

• I also have experience certificates from my previous employers.

• I can provide these documents upon request.
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DSA - STRING AND ARRAY QUESTION