Crio.Do Interview Questions, Process, and Tips

Q1. Difference between SQL vs nosql
Ans. 
SQL is a relational database management system, while NoSQL is a non-relational database management system.
• SQL is table-based, with a predefined schema, while NoSQL is document, key-value, graph, or wide-column store-based, with dynamic schema.

• SQL is best suited for complex queries and transactions, while NoSQL is better for hierarchical data storage and real-time web applications.

• Examples of SQL databases include MySQ...read more
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Q2. Discussion on projects
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Q3. What is use state
Ans. 
Use state is a feature in React that allows components to have local state.
• Use state is a React Hook that allows functional components to have state.

• It is used to store and update component-specific data.

• Example: const [count, setCount] = useState(0);
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Q4. Middle number in a matrix
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The middle number in a matrix is the number located at the center of the matrix.
• To find the middle number in a matrix, first determine the number of rows and columns in the matrix.

• If the number of rows and columns is odd, the middle number is located at (n/2, n/2) where n is the number of rows or columns.

• If the number of rows and columns is even, there may be multiple middle numbers or the average of the two middle num
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2 Dsa problems those we have to solve in 30 minetes

Live DSA and Linex round

Q1. Project regarding question.
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Q2. How you build this project.
Ans. 
The project was built using a combination of programming languages, frameworks, and tools.
• Used Python programming language for backend development

• Utilized React.js for frontend development

• Implemented RESTful APIs for communication between frontend and backend

• Used PostgreSQL database for storing data

• Deployed the project on AWS using Elastic Beanstalk
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Q1. What is a stack
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A stack is a data structure that follows the Last In, First Out (LIFO) principle.
• Elements are added and removed from the top of the stack.

• Common operations include push (add element) and pop (remove element).

• Examples of stacks include the call stack in programming and the undo feature in text editors.
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Q2. What is a queue
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A queue is a data structure that follows the First In First Out (FIFO) principle, where elements are added at the rear and removed from the front.
• Elements are added to the rear of the queue and removed from the front

• Common operations include enqueue (add to rear) and dequeue (remove from front)

• Examples of queues include waiting lines at a grocery store or a printer queue
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Basic dsa questions and 30 min round

Faced several apis to work flow