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MKCL

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MKCL Interview Questions and Answers

Updated 5 Sep 2024

Q1. difference between SQL, MySQL, and MongoDB

Ans.

SQL is a language used to manage relational databases. MySQL is a popular open-source relational database management system. MongoDB is a NoSQL database.

  • SQL is a language used to communicate with and manage relational databases.

  • MySQL is a popular open-source relational database management system.

  • MongoDB is a NoSQL database that stores data in a flexible, JSON-like format.

  • SQL databases use tables to store data, while MongoDB uses collections and documents.

  • SQL databases are goo...read more

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Q2. what are the types of joins?

Ans.

Types of joins include inner join, left join, right join, and full outer join.

  • Inner join returns only the matching records from both tables.

  • Left join returns all records from the left table and the matching records from the right table.

  • Right join returns all records from the right table and the matching records from the left table.

  • Full outer join returns all records when there is a match in either the left or right table.

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Q3. Explain Opps concept in real life

Ans.

OOPs concept is a programming paradigm that uses objects to represent real-world entities.

  • Encapsulation: Hiding the implementation details of an object from the outside world

  • Inheritance: Creating new classes from existing ones to reuse code and add new functionality

  • Polymorphism: Using a single interface to represent multiple types of objects

  • Abstraction: Focusing on the essential features of an object and ignoring the rest

  • Example: A car object can have properties like color, m...read more

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Q4. SQL vs NoSQL

Ans.

SQL is a relational database management system, while NoSQL is a non-relational database management system.

  • SQL databases are structured and use tables to store data, while NoSQL databases are unstructured and use various data models.

  • SQL databases are better suited for complex queries and transactions, while NoSQL databases are better for handling large amounts of unstructured data.

  • SQL databases ensure data integrity through ACID properties, while NoSQL databases prioritize sc...read more

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Q5. What if the government does not agree with the business plan?

Ans.

The General Manager should work with the government to address concerns and find a mutually beneficial solution.

  • Engage in open communication with government officials to understand their concerns

  • Make necessary adjustments to the business plan to address government feedback

  • Seek compromise and find common ground to move forward

  • Provide data and evidence to support the business plan and demonstrate its benefits to the government

  • Consider legal and regulatory requirements and ensur...read more

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Q6. What do you understand by Innovation?

Ans.

Innovation is the process of introducing new ideas, products, services, or methods to improve existing processes or create something entirely new.

  • Innovation involves creativity and thinking outside the box.

  • It can lead to increased efficiency, competitiveness, and growth.

  • Examples include the development of new technologies, products, services, or business models.

  • Innovation can also involve improving existing processes or finding new solutions to problems.

  • It requires a willingn...read more

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