Infinite Solutions Inc Associate Software Engineer Interview Questions and Answers

Q1. Introduce your self.
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Q1. Oops concepts polymorphism eg. and logic.
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Q1. Different between = and double eqal to
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The assignment operator (=) assigns values, while the equality operator (==) checks for value equality.
• The assignment operator (=) is used to assign a value to a variable. Example: x = 5 assigns 5 to x.

• The equality operator (==) checks if two values are equal. Example: (x == 5) returns true if x is 5.

• Using = in a condition will cause an error or unintended assignment. Example: if (x = 5) assigns 5 to x instead of check...read more
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Q2. What is orm
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ORM (Object-Relational Mapping) is a programming technique for converting data between incompatible type systems using object-oriented programming.
• ORM allows developers to interact with a database using high-level programming languages instead of SQL.

• It maps database tables to classes and rows to objects, simplifying data manipulation.

• Examples of ORM frameworks include Hibernate for Java, Entity Framework for .NET, and...read more
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Q1. JavaScript HTML5 CSS3
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This is the first round where they provided one paper to write technical question based on 2d arrays.

Q1. Second round was technical round in this round they asked the intro, projects and opps and sql
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Q2. 2D array question
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Q1. The next day they called me for the second technical round in which they again asked the opps in depth and asked me to write the codes of opps and sql
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Q1. In HR round it was quite friendly they asked about my family, relocation, package, intership and etc
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Q1. Introduction of yourself
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Q2. Your previous company experience
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I worked as a Software Engineer at XYZ Corp, focusing on developing scalable web applications and improving system performance.
• Led a team of 5 in developing a customer relationship management tool that increased user engagement by 30%.

• Implemented RESTful APIs for seamless integration with third-party services, enhancing functionality and user experience.

• Optimized existing codebase, reducing load times by 40% and improv...read more
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Q3. Projects you have worked on
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I have worked on various projects, including web applications, mobile apps, and data analysis tools, showcasing diverse technical skills.
• Developed a web application for a local business using React and Node.js, improving their online presence and customer engagement.

• Created a mobile app for tracking fitness goals, which included features like user authentication, data visualization, and social sharing.

• Built a data anal...read more
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Q1. What can you tell me about your previous projects?
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I have worked on various projects including developing web applications, implementing machine learning algorithms, and optimizing database performance.
• Developed a web application using React.js and Node.js for a client in the e-commerce industry

• Implemented machine learning algorithms for a predictive analytics project using Python and TensorFlow

• Optimized database performance by fine-tuning SQL queries and indexing stra...read more
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Q2. Questions regarding new technology
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Q1. Can you walk us through a project where you handled end to end development?
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Q2. How do you approach debugging a complex issue in produciton environment
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I systematically analyze logs, reproduce issues, and collaborate with teams to resolve complex production bugs efficiently.
• 1. Gather logs and metrics: Analyze application logs and performance metrics to identify anomalies.

• 2. Reproduce the issue: Attempt to replicate the problem in a controlled environment to understand its behavior.

• 3. Isolate components: Narrow down the affected components or services to focus debuggin...read more
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Q3. Explain how you would design a scalable REST api for a high traffic application
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Designing a scalable REST API involves careful planning of architecture, data management, and performance optimization.
• Use stateless architecture to ensure each request is independent, allowing for easier scaling.

• Implement load balancing to distribute incoming traffic across multiple servers, e.g., using AWS Elastic Load Balancing.

• Utilize caching strategies (e.g., Redis, Memcached) to reduce database load and improve r...read more
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Q1. Explain a challenging project you worked on and how you solved key technical problems. What technologies did you use?
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Q2. You are building scalable system which handles thousands of concurrent users. How would you design backend architecture? what technologies or pattern would oyu use for reliability and stability
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