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I applied via Naukri.com and was interviewed before Aug 2023. There was 1 interview round.
Approach debugging by understanding the code flow, using debugging tools, isolating the issue, and testing solutions.
Start by understanding the code flow and identifying potential areas where the issue may be occurring.
Use debugging tools like breakpoints, logging, and stack traces to pinpoint the source of the problem.
Isolate the issue by reproducing it consistently and narrowing down the scope of the problem.
Test pot...
Refactored a legacy codebase to improve performance by optimizing database queries.
Identified bottlenecks in the codebase by profiling and analyzing performance metrics.
Rewrote complex and inefficient database queries to improve response times.
Implemented caching mechanisms to reduce redundant database calls.
Refactored code to follow best practices and improve maintainability.
Tested the changes thoroughly to ensure the...
By prioritizing tasks, using efficient algorithms, and conducting code reviews.
Prioritize tasks based on impact and complexity to focus on critical components first.
Utilize efficient algorithms and data structures to optimize code performance.
Conduct code reviews with team members to identify potential bottlenecks and suggest improvements.
Example: Prioritize implementing a caching mechanism for frequently accessed data...
I would approach the situation by respectfully discussing the pros and cons of both solutions and finding a compromise.
Listen to the senior team member or client's perspective and understand their reasoning
Present your preferred solution along with the reasons why you believe it is the best approach
Engage in a constructive discussion to find common ground or a compromise
Consider the impact of each solution on the proje...
I regularly attend tech conferences, read industry blogs, participate in online courses, and collaborate with colleagues to stay updated.
Attend tech conferences to learn about new technologies and trends
Read industry blogs and articles to stay informed
Participate in online courses and tutorials to expand knowledge
Collaborate with colleagues to share insights and learn from each other
I use package managers, regularly update dependencies, and conduct security audits.
Utilize package managers like npm, pip, or Maven to manage dependencies
Regularly update dependencies to ensure compatibility and security patches
Conduct security audits using tools like OWASP Dependency-Check or Snyk
Consider using dependency locking to ensure consistent builds
I implemented a new feature using React Native and had to learn the framework on the job.
Researched online resources and documentation to understand React Native
Experimented with small projects to practice using React Native
Sought help from colleagues or online communities when facing challenges
Identified and addressed a potential bottleneck in a system before it became a problem.
Monitored system performance regularly to identify any potential bottlenecks
Analyzed system logs and metrics to pinpoint the root cause of the bottleneck
Implemented optimizations such as caching, indexing, or code refactoring to address the bottleneck
Collaborated with team members to implement a long-term solution to prevent similar ...
I use consistent naming conventions, inline comments, and thorough documentation to ensure clean and well-documented code.
Follow consistent naming conventions for variables, functions, and classes to make the code easier to understand.
Include inline comments to explain complex logic or algorithms within the code.
Write thorough documentation for each function, class, and module to provide context and usage instructions ...
Approach integrating new feature into existing system without disruption
Analyze the existing system to understand its architecture and dependencies
Identify the impact of the new feature on the current functionality
Implement the new feature in a separate branch or environment for testing
Conduct thorough testing to ensure the new feature works as expected and does not break existing functionality
Gradually integrate the n...
posted on 19 Jan 2022
I applied via Naukri.com and was interviewed before Jan 2021. There were 3 interview rounds.
The @Controller annotation is used to create a controller class for handling HTTP requests, while @RestController is used for RESTful web services.
The @Controller annotation is used for traditional web applications that return HTML views.
The @RestController annotation is used for creating RESTful web services that return JSON or XML data.
The @RestController annotation is a combination of @Controller and @ResponseBody a...
posted on 4 Apr 2022
I appeared for an interview before Apr 2021.
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview round with questions around Java.
The main difference is that @RestController is a specialized version of @Controller that is used for RESTful web services.
RestController is used for creating RESTful web services, while Controller is used for handling web requests in a traditional MVC application
RestController eliminates the need for annotating each method with @ResponseBody as it is done automatically
RestController returns data directly in the respons...
Your task is to swap two given numbers without utilizing an additional variable and print the swapped values.
The first line contains an integer 't...
Swapping two numbers without using a third variable in Java.
Use bitwise XOR operation to swap the numbers without using a third variable.
a = a XOR b; b = a XOR b; a = a XOR b; will swap the values of a and b.
Ensure to handle edge cases like when a and b are the same number.
Singleton Design Pattern ensures a class has only one instance and provides a global point of access to it.
Ensures a class has only one instance by providing a global access point to it.
Uses a private constructor to restrict instantiation of the class from other classes.
Provides a static method to access the single instance of the class.
Commonly used in scenarios where only one instance of a class is needed, such as da...
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I appeared for an interview in Mar 2025, where I was asked the following questions.
I applied via Recruitment Consulltant and was interviewed before Sep 2022. There were 2 interview rounds.
Proficient in Java, Python, and JavaScript.
Java
Python
JavaScript
Yes, I have worked with several frameworks and libraries including React, Angular, and Node.js.
Worked with React for building user interfaces
Experience with Angular for front-end development
Utilized Node.js for server-side scripting
I approach problem-solving in software development by breaking down the issue, researching possible solutions, and collaborating with team members.
Identify the problem and gather all relevant information
Break down the problem into smaller, manageable tasks
Research possible solutions and consider different approaches
Collaborate with team members to brainstorm ideas and gather feedback
Implement and test the solution, mak...
Yes, I have extensive experience with version control systems like Git.
I have been using Git for version control in all my projects for the past 5 years.
I am proficient in creating branches, merging code, resolving conflicts, and performing code reviews using Git.
I have experience with popular Git hosting services like GitHub, GitLab, and Bitbucket.
Yes, I am familiar with software testing methodologies and tools.
I have experience with both manual and automated testing
I am familiar with Agile testing methodologies such as Scrum and Kanban
I have used tools like Selenium, JUnit, and TestNG for testing
I understand the importance of regression testing and performance testing
Yes, I have experience in both backend and frontend development.
I have worked on backend development using languages like Java, Python, and Node.js to build APIs and handle server-side logic.
I have experience in frontend development using technologies like HTML, CSS, and JavaScript to create user interfaces and interactive web applications.
I have used frameworks like React and Angular for frontend development and frame...
Debugging and troubleshooting in software development involves identifying and fixing errors in code to ensure proper functionality.
Identify the problem by reproducing the issue and understanding the expected behavior.
Use debugging tools like breakpoints, logging, and stack traces to pinpoint the source of the error.
Review the code for logic errors, syntax errors, or incorrect assumptions.
Test potential solutions to th...
Yes, I can provide examples of my code that demonstrate my coding style and best practices.
I follow the SOLID principles to ensure my code is maintainable and scalable.
I use design patterns such as MVC, Singleton, and Factory to organize my code effectively.
I write clean and readable code with meaningful variable names and comments for clarity.
I regularly refactor my code to improve performance and readability.
I utiliz...
Yes, I am comfortable working with databases and SQL.
Proficient in writing complex SQL queries for data retrieval and manipulation
Experience with database design, normalization, and optimization
Familiarity with stored procedures, triggers, and views
Knowledge of indexing and query performance tuning
Examples: SELECT * FROM table WHERE condition; CREATE TABLE table_name (column1 datatype, column2 datatype, ...);
Yes, I have experience working with cloud platforms like AWS and Azure.
Developed and deployed applications on AWS using services like EC2, S3, and RDS
Utilized Azure for building and managing cloud-based solutions
Implemented serverless architecture using AWS Lambda functions
Worked on setting up and configuring cloud infrastructure on both AWS and Azure
Scalability in software architecture refers to the ability of a system to handle increasing amounts of work or its potential to accommodate growth.
Scalability involves designing a system in a way that allows it to easily expand in terms of processing power, storage capacity, or network bandwidth.
Horizontal scalability involves adding more machines to distribute the load, while vertical scalability involves upgrading ex...
Yes, I have experience using project management tools and issue tracking systems.
I have used Jira extensively for project management and issue tracking.
I am familiar with Trello for task management and collaboration.
I have also used Asana for project planning and tracking progress.
Yes, I am familiar with security practices and principles in software development.
I have experience implementing secure coding practices such as input validation, output encoding, and proper error handling.
I am knowledgeable about common security vulnerabilities like SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF).
I understand the importance of data encryption, secure authentication mec...
Yes, I have experience working on projects that involved integrating third-party APIs and services.
Integrated payment gateways like PayPal and Stripe for e-commerce applications
Utilized social media APIs such as Facebook and Twitter for user authentication and sharing features
Implemented Google Maps API for location-based services
Refactored code by optimizing database queries to improve performance.
Identified slow database queries impacting performance.
Analyzed query execution plans to identify bottlenecks.
Rewrote queries to use indexes and optimize joins.
Implemented caching mechanisms to reduce database load.
Measured performance improvements using profiling tools.
I handle tight deadlines by prioritizing tasks based on urgency and impact on project goals.
Break down the project into smaller tasks and set realistic deadlines for each
Communicate with team members and stakeholders to ensure everyone is on the same page
Use project management tools like Trello or Jira to track progress and prioritize tasks
Focus on high-impact tasks first to ensure project goals are met
Be flexible and ...
I applied via Naukri.com and was interviewed before Oct 2019. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Dec 2019. There were 5 interview rounds.
I encountered a situation where a Google Ads campaign was not generating enough conversions.
I analyzed the campaign's performance metrics to identify the issue
I discovered that the ad copy was not compelling enough to drive conversions
I revised the ad copy to make it more persuasive and relevant to the target audience
After implementing the changes, I closely monitored the campaign's performance
The revised ad copy resul...
Encountered a problem with a malfunctioning machine and found no solution initially
Encountered a problem with a malfunctioning machine that was affecting production
Tried troubleshooting and consulting manuals but couldn't find a solution
Reached out to the manufacturer for assistance
Manufacturer sent a technician who identified the issue and fixed it
Production resumed as normal
My strengths include strong communication skills and attention to detail. However, my weakness is that I can be overly critical of my own work.
Strength: Strong communication skills - I have the ability to effectively convey information and ideas to others.
Strength: Attention to detail - I am meticulous and thorough in my work, ensuring accuracy and quality.
Weakness: Overly critical of my own work - I tend to be too har...
I applied via Campus Placement and was interviewed before Jun 2022. There were 4 interview rounds.
Basic Aptitude test was conducted by the company
I applied via LinkedIn and was interviewed in Feb 2024. There were 3 interview rounds.
Maths and reasoning question
Analysts use data to inform decisions, requiring strong analytical skills and knowledge of tools like Excel and SQL.
Analysts often utilize Excel for data manipulation and visualization, such as creating pivot tables.
SQL is commonly used for querying databases, allowing analysts to extract relevant data efficiently.
Statistical analysis tools like R or Python can be employed for deeper insights, such as regression analys...
based on 1 interview experience
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