UST BlueConch Technologies Interview Questions, Process, and Tips

Q1. Explain project
Ans. 
The project is a web-based application for managing inventory and sales in a retail store.
• Developed using Java Spring framework

• Utilized MySQL database for storing data

• Implemented RESTful APIs for communication between frontend and backend

• Included features like product management, sales tracking, and user authentication
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Q2. Explain how data flow in your project
Ans. 
Data flows in our project through various stages including input, processing, and output.
• Data is first collected from various sources such as user inputs, databases, or external APIs.

• The collected data is then processed using algorithms, logic, and rules defined in the software.

• Processed data is stored in databases or sent to other systems for further analysis or presentation.

• Examples include user input being validated...read more
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Q1. What is data warehouse
Ans. 
A data warehouse is a centralized repository that stores structured and unstructured data from various sources for analysis and reporting.
• Data warehouses are used for decision-making and business intelligence purposes.

• They typically store historical data and are optimized for complex queries.

• Examples of data warehouse tools include Amazon Redshift, Snowflake, and Google BigQuery.
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Q2. Explain SCD type
Ans. 
SCD stands for Slowly Changing Dimension, used in data warehousing to track changes in data over time.
• SCD Type 1: Overwrites old data with new data

• SCD Type 2: Creates new records for each change, maintaining history

• SCD Type 3: Adds new columns to track changes without creating new records

• SCD Type 4: Uses separate tables to store historical data

• SCD Type 6: Hybrid approach combining Type 1 and Type 2
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Q1. OOPS concept explain
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve a problem

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation

• Classes are blueprints for creating objects, while objects are instances of classes

• Inheritance allows a class to inherit proper...read more
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Q2. Explain OOPS concept explain
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve a problem

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation: bundling data and methods that operate on the data into a single unit

• Inheritance: allows a class to inherit properties a...read more
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Well designed tests to check your knowledge

Q1. Not your usual Q&Abut discussion based technical questions
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Q1. General friendly discussion
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Q1. Asked about technologies handles
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Q2. Years of expertise
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