UNext Senior Engineer Interview Questions and Answers

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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Q1. What is array bit mapping
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Array bit mapping is a technique used to represent data in a compact form by using bits to map elements in an array.
• Array bit mapping involves using individual bits to represent elements in an array, allowing for efficient storage and retrieval of data.

• Each element in the array is assigned a unique bit position, with the value of the bit indicating the presence or absence of the element.

• This technique is commonly used ...read more
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Q1. Android architecture mvvm mvc kotlin
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Q2. Coroutines flows
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Q1. Hr calls to understand candidates experience and expectations
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Q1. Both technical discussion and coding happens in this round
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Q1. Some technical discussion with engineer manager and cultural fit
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Coding test around front end using react

Ok ok level one round

Moderate level one round

Q1. Easy level one round
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Got 2 medium level DSA questions in the coding test

Q1. Computer fundamentals
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Q2. System Design Questions
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They will give the java ad testing coding test

Q1. Discussed about the remuneration
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