Decision Minds Data Engineer Interview Questions, Process, and Tips

Puzzles, speed, logical questions

Q1. Self introduction
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Q2. Background and coding knowledge
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Q1. Difference between Asp.net and Ado.net? Explain about Ado.net complete briefly?
Ans. 
ASP.NET is a web development framework while ADO.NET is a data access technology for connecting to databases.
• ASP.NET is used for building web applications, while ADO.NET is used for accessing and manipulating data from databases.

• ASP.NET provides a framework for creating dynamic web pages, handling user input, and managing state, while ADO.NET provides a set of classes for interacting with databases.

• ASP.NET includes fea...read more
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Q2. Difference between Functions and stored procedure?
Ans. 
Functions return a value while stored procedures do not.
• Functions are used to perform a specific task and return a value to the caller.

• Stored procedures are used to execute a set of SQL statements and do not return a value.

• Functions can be used in SQL statements while stored procedures cannot.

• Functions can be called from within stored procedures.

• Functions are deterministic while stored procedures may not be.

• Functions c...read more
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Q3. Interface Inheritance Difference between overloading and overriding
Ans. 
Interface is a contract that defines the methods a class must implement. Inheritance is the ability of a class to inherit properties and methods from another class.
• Interface is used to achieve abstraction and multiple inheritance in Java.

• Inheritance allows code reuse and promotes code organization.

• Overloading is having multiple methods with the same name but different parameters.

• Overriding is providing a different impl...read more
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Q1. DevOps tools related questions
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Q2. And python programming questions
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Topics:
Python, Django, MySQL, Automation, Technical questions

Q1. Topics: Python, Django, MySQL, Automation, Technical questions
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Q2. Explain Django Architecture
Ans. 
Django follows Model-View-Controller (MVC) architectural pattern.
• Django has a high-level architecture that follows the Model-View-Controller (MVC) architectural pattern.

• The Model layer represents the database schema and business logic.

• The View layer is responsible for rendering the templates and presenting the data to the user.

• The Controller layer handles the user's input and interacts with the Model and View layers.

• Dj...read more
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Q3. Difference between XML and JSON
Ans. 
XML is a markup language while JSON is a lightweight data interchange format.
• XML uses tags to define elements while JSON uses key-value pairs.

• XML is more verbose and complex than JSON.

• JSON is easier to read and parse than XML.

• XML supports namespaces and validation while JSON does not.

• XML is widely used in web services and document exchange while JSON is preferred for data exchange between applications.
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SQL Test with 5 questions

Q1. Approach towards solving the SQL Queries from the test
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Q2. Past Experiences
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Q1. Resume related Questions
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Q2. Power BI and SQL related questions. How to approach in a dashboard building process
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Basic java questions along with aptitude questions.

Q1. Basic oops concept, java functionalities, spring framework.
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Q1. Basic Hr questions, when you can join, expected ctc...
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Q1. Question on Java mcq
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Q2. Questions on Oops
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Q1. Questions based on resume
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Q1. Questions on direction, physics
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