Jspiders Interview Questions and Answers

Q1. Tell me about your E-commerce project
Ans. 
Developed an E-commerce platform with user-friendly interface and secure payment gateway.
• Implemented product catalog with search and filter options

• Integrated payment gateway for secure transactions

• Designed user-friendly interface for easy navigation

• Implemented order tracking and notification system
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Q2. How to join two databases?
Ans. 
To join two databases, you can use database links or data replication techniques.
• Use database links to establish a connection between the two databases.

• Use data replication techniques like ETL (Extract, Transform, Load) to synchronize data between the two databases.

• Consider using a middleware tool to facilitate data integration between the databases.
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Q3. Tell me joins queries in sql
Ans. 
Join queries in SQL are used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Syntax: SELECT columns FROM table1 JOIN table2 ON table1.column = table2.column

• Example: SELECT * FROM employees JOIN departments ON employees.department_id = departments.department_id
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Q4. What is normalization?
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Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down data into smaller, more manageable parts.

• It helps in reducing data redundancy by storing data in a structured way.

• Normalization ensures data integrity by avoiding anomalies like insertion, update, and deletion anomalies.

• There are different normal forms like 1NF, 2NF, 3NF, BC...read more
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Q5. How to achieve normalization?
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalize data by breaking down tables into smaller, related tables

• Eliminate redundant data by storing it in separate tables

• Use primary and foreign keys to establish relationships between tables
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Q6. Tell me about your project over view
Ans. 
Developed a web-based inventory management system for a retail company
• Used Java, Spring framework, and MySQL for backend development

• Implemented user authentication and authorization using Spring Security

• Designed a responsive front-end using HTML, CSS, and JavaScript
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Q7. Tell me about some github comments
Ans. 
Github comments are feedback left by users on code repositories, providing insights, suggestions, and discussions.
• Comments can be used to explain code functionality, suggest improvements, report bugs, or ask questions.

• Users can engage in discussions within the comments section, providing feedback and collaborating on code development.

• Comments can also serve as documentation for future reference, helping developers unde
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Q1. Collection Framework
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Q2. Spring Boot Database Connectivity using JPA
Ans. 
Spring Boot simplifies database connectivity using JPA for easy and efficient data access.
• Spring Boot provides auto-configuration for JPA to easily connect to databases.

• Entities are mapped to database tables using annotations like @Entity and @Table.

• Repositories are created using interfaces that extend JpaRepository for CRUD operations.

• Queries can be written using method names or JPQL queries in repository interfaces.

• T...read more
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Aptitude , communication

Fibonacci series , strings, alternative numbers

What about banglore water problem

Project manager , explain the process

Q1. About your self
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Q2. Explain ur family background
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They will give you an assignment which based on daily basis activity tracking website to make

Overall Good experience .

Overall Good experience.

Q1. Tell me about your self
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Basic aptitude questions

Q1. As basic hr question to determine personality and seriousness
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