muVerity Front end Developer Interview Questions and Answers

Dsa with medium leetcode questions

Q1. Lru cache with optimisation
Ans. 
Implementing an LRU cache with optimization techniques for efficient data storage and retrieval.
• Use a doubly linked list to keep track of the most recently used items

• Implement a hash map for fast lookups and updates

• Optimize by using a combination of both data structures for efficient cache management
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The first round is aptitude round it is basically on aptitude, reasoning

They give some mid level dsa questions

Data Structures and Algorithms

Q1. Data Structures
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Q2. System design questions
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Good level question. I have qualified for the next round

Basic to intermediate question, Cleared the test

Q1. Tell me about yourself and introduce yourself
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Q1. Introduced Yourself
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Q2. About knowledge in Software Development
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Coding test duration is 30 to 40 min
on paper pen and topic is simple like related to string,pattern and number's

Q1. Introduction about yourself
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Q2. Salary expectation
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Q1. Related to the basic of html css and js
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Q2. Ask run time short code and explanation
Ans. 
Runtime refers to the period when a program is executing, affecting performance and resource usage.
• Runtime is when code is executed, as opposed to compile time.

• Performance can vary based on algorithms used; e.g., O(n) vs O(n^2).

• Memory usage is crucial; e.g., using arrays vs linked lists can impact runtime.

• Dynamic typing in languages like Python can lead to slower runtime compared to statically typed languages like C++.
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Q1. About yourself and other
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Q2. All about company your expectation and salary disscuced
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Q1. Write a mongoDB query to filter top 5 students
Ans. 
Use MongoDB's aggregation framework to filter and sort students by their scores, returning the top 5 results.
• Use the `find()` method to query the students collection.

• Sort the results by the score field in descending order.

• Limit the results to 5 using the `limit()` method.

• Example: `db.students.find().sort({ score: -1 }).limit(5)`

• Ensure the score field exists and is indexed for better performance.
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Q2. What is redux and difference between redux and context api
Ans. 
Redux is a state management library for JavaScript apps, while Context API is a built-in React feature for managing state.
• Redux provides a centralized store for application state, while Context API allows for state sharing across components without prop drilling.

• Redux uses actions and reducers to manage state changes, whereas Context API uses the Provider and Consumer pattern.

• Redux is more suitable for large applicatio...read more
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