Quark Previous Years Solved Sample Placement Papers
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Tell what you know about React.
React is a JavaScript library for building user interfaces.
React allows for building reusable UI components.
It uses a virtual DOM for efficient rendering.
React can be used with other libraries and frameworks.
It follows a unidirectional data flow pattern.
React Native allows for building mobile apps using React.
JSX is used to write HTML-like syntax in JavaScript.
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What is the difference between IN and EXISTS?
IN is used to check if a value exists in a list of values, while EXISTS is used to check if a subquery returns any rows.
IN is used with a list of values, while EXISTS is used with a subquery.
IN returns true if the value is found in the list, while EXISTS returns true if the subquery returns any rows.
IN is typically used with a WHERE clause, while EXISTS is used in a subquery.
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Technology that needs to improve in day to day life.
Smart home technology needs to improve in day to day life:
Improved integration between smart devices for seamless automation.
Enhanced security features to protect privacy and data.
More energy-efficient solutions to reduce environmental impact.
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What is normalization?
Normalization is the process of organizing data in a database to reduce redundancy and dependency.
Normalization helps in improving data consistency and accuracy.
It involves breaking down a large table into smaller tables and defining relationships between them.
Normalization is achieved through a series of normal forms, such as First Normal Form (1NF), Second Normal Form (2NF), and so on.
Each normal form has a set of rules that must be followed to ensure data integrity.
For example, in 1NF, each table cell should contain a single value, and in 2NF, each non-key attribute should be dependent on the entire primary key.
Normalization is important for efficient database design and maintenance.
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What is Redux and Redux Saga?
Redux is a state management library for JavaScript apps. Redux Saga is a middleware for Redux that handles side effects.
Redux is used to manage the state of an application in a predictable way.
Redux Saga is a middleware that allows for handling side effects such as asynchronous API calls.
Redux Saga uses generator functions to make asynchronous code easier to read and test.
Redux Saga can be used to handle complex workflows such as authentication and data fetching.
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Do you have any questions for us?
Yes, I have a few questions regarding the role and responsibilities of a Program Analyst:
Can you provide more information about the specific projects I will be working on?
What is the team structure like and who will I be reporting to?
What are the key performance indicators for this role?
How does the company measure success for this position?
What opportunities are there for growth and development within the company?