Jain Amar Interview Questions, Process, and Tips

2 DSA questions and some MCQ on Java and Spring

Q1. Longest palindromic substring
Ans. 
A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromes of odd and even lengths.
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Q2. Remove duplicates in place from a 1D array
Ans. 
Remove duplicates from a 1D array of strings in place
• Iterate through the array and use a HashSet to keep track of unique elements

• Replace duplicates with null or an empty string to remove them in place
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Q1. Project discussion
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Q2. Search min element in a rotated sorted array with duplicate elements
Ans. 
Search for the minimum element in a rotated sorted array with duplicate elements.
• Use binary search to find the minimum element in the rotated sorted array.

• Handle the case where duplicate elements are present by adjusting the search conditions.

• Consider cases where the array is not rotated or contains only one element.
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Q3. Ways of declaring singleton class
Ans. 
A singleton class is a class that can only have one instance created throughout the application.
• Declare a private static instance variable of the class

• Create a private constructor to prevent external instantiation

• Provide a public static method to access the instance
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Q1. Project discussion
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Q2. Behavioural questions
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Q1. Risk management
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Q2. Stakeholder management
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Q3. Solution architecture and block diagram
Ans. 
Solution architecture and block diagram involves designing the overall structure of a system and visually representing it.
• Identify key components and their interactions

• Define data flow and communication protocols

• Consider scalability, security, and performance

• Use tools like UML diagrams or flowcharts

• Example: AWS architecture with EC2 instances, S3 storage, and RDS database
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Q4. Program values and benefits
Ans. 
Program values and benefits are essential for successful project management, ensuring alignment with organizational goals and delivering value to stakeholders.
• Program values define the principles and beliefs that guide decision-making and behavior within the program.

• Benefits are the positive outcomes or results that the program aims to achieve, such as cost savings, increased efficiency, or improved customer satisfacti...read more
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Q5. How to assess a program benefits
Ans. 
Assessing program benefits involves identifying key metrics, collecting data, analyzing results, and comparing against goals.
• Identify key metrics to measure success, such as cost savings, revenue growth, customer satisfaction, etc.

• Collect relevant data to track progress and measure impact of the program.

• Analyze the data to determine if the program is meeting its objectives and delivering expected benefits.

• Compare the r...read more
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Q6. Project life cycle and framework and methodology
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Q7. Values and principles
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2 case study rounds for 1.5 hours, 1st case study is a small use case with 2 questions and there will be 10 mins given for preparation. 2nd case study will have 5 questions and time given for preparation will be 25 mins.

Q1. Tesco cultural values
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Q2. Tesco leadership values
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Q3. Conflict management
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Q4. Risk management
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Q5. Resilience and Humility
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Q6. Trust and believe
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Q7. Team work and collaboration
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Q8. Failures and lessons learned
Ans. 
I have experienced failures in past projects and have learned valuable lessons from them.
• Recognizing the importance of clear communication and setting expectations early on

• Implementing regular project status updates to stakeholders to avoid surprises

• Documenting lessons learned to prevent repeating the same mistakes in future projects
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Q1. Product life cycle
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Q2. Program life cycle
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Q3. Project life cycle
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Q4. Schedule and effort estimate
Ans. 
Schedule and effort estimation is crucial for successful project management.
• Understand the scope of the project and break it down into smaller tasks

• Estimate the time and resources required for each task

• Consider dependencies between tasks and potential risks

• Use historical data or expert judgment to improve accuracy

• Regularly review and update the schedule as needed
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Q5. Cost estimates and tracking
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Q6. Define project phases
Ans. 
Project phases are distinct stages in a project's lifecycle, each with specific goals and deliverables.
• Initiation: Define project scope, objectives, and stakeholders.

• Planning: Create a detailed project plan, including timelines and resources.

• Execution: Implement the project plan and deliver the project's objectives.

• Monitoring and Controlling: Track project progress, identify issues, and make necessary adjustments.

• Closi...read more
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Q7. Difference between Opex and Capex
Ans. 
Opex refers to operational expenses, while Capex refers to capital expenses.
• Opex includes day-to-day expenses like salaries, rent, utilities, and maintenance.

• Capex involves investments in assets that provide long-term value, such as equipment, property, and infrastructure.

• Opex is typically incurred regularly and is fully tax-deductible in the year it is incurred.

• Capex is usually depreciated over time as the asset is us...read more
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Q8. Quality and various tools used
Ans. 
Quality is crucial in delivering successful projects. Various tools like Jira, Confluence, and Jenkins are commonly used to ensure high quality.
• Quality assurance processes are essential to maintain high standards in project deliverables

• Tools like Jira are used for issue tracking and project management

• Confluence is used for documentation and collaboration among team members

• Jenkins is used for continuous integration and ...read more
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Q9. Demonstrate one project with technical expertise and IT landscape and Tech Stacks
Ans. 
Led a project to implement a cloud-based data analytics platform using AWS services and Python tech stack.
• Designed architecture for data analytics platform using AWS services like S3, Glue, and Athena.

• Implemented ETL processes using Python and Apache Spark for data transformation and analysis.

• Integrated machine learning models into the platform for predictive analytics.

• Ensured scalability and performance optimization o...read more
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Q10. Waterfall and Agile Software Development
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Q11. Business benefits and realisation
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Q12. Managing conflicting priorities
Ans. 
Managing conflicting priorities involves prioritizing tasks, communicating effectively, and being flexible.
• Prioritize tasks based on importance and deadlines

• Communicate with stakeholders to understand their needs and expectations

• Be flexible and willing to adjust plans as needed

• Use tools like project management software to track progress and manage tasks
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Q13. Managing stakeholders expectations and demands
Ans. 
Managing stakeholders expectations and demands is crucial for successful project delivery.
• Establish clear communication channels with stakeholders

• Set realistic expectations from the beginning

• Regularly update stakeholders on project progress

• Address any concerns or issues promptly

• Seek feedback from stakeholders to ensure alignment
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Q14. Scope management and scope creeps
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Q15. Vendor management and CBA
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Q16. Team performance and Backlog management
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Q1. Why do you want to work at Target?
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Q2. Have you had a disagreement with another employee?
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We are discussing the daily sales targets and store achievements.

Q1. Ill be go one by one connect with the staff discussing the yesterday sale and stock requirements.
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Q2. Then we see the floor standeds and hygienic
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Q1. How much your experience in retail store ?
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Q2. Problem solving skills and products knowledge are also required
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Q3. How much language you know?
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Q4. What is your expectations?
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Q5. Why you are joining hare
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