PeopleStrong Software Development Engineer Interview Questions and Answers

Focused more on Logics and DSA

Q1. Just with Formal Questions
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Q1. Java : Find all most occuring characters in given string only using arrays
Ans. 
Use arrays to find all most occurring characters in a given string in Java.
• Create an array to store the frequency of each character in the string.

• Iterate through the string and update the frequency array.

• Find the maximum frequency and then iterate through the frequency array to find all characters with that frequency.
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Q1. Tell Me about yourself
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Q2. What is C# and coding.
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Q1. What is your CCTC?
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Q1. What is useState?
Ans. 
useState is a hook in React that allows functional components to have state.
• useState is a React hook used in functional components to manage state.

• It returns an array with the current state value and a function to update that value.

• Example: const [count, setCount] = useState(0);
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Q2. What's useEffect?
Ans. 
useEffect is a hook in React that allows performing side effects in function components.
• Used in React functional components to perform side effects

• Executes after render and after every update

• Can be used to fetch data, subscribe to events, update the DOM, etc.
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Q3. What is Redux and state management?
Ans. 
Redux is a predictable state container for JavaScript apps. It helps manage the state of an application in a centralized way.
• Redux is a state management library commonly used with React.

• It allows for a single source of truth for the state of an application.

• Actions are dispatched to update the state, and reducers specify how the state changes in response to actions.

• Redux DevTools can be used to track state changes and d...read more
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Q1. Based on profile and Job description
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2 easy level coding questions to be solved

Q1. One dsa question which needs to be live coded in 45 mins
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Q1. Same as first round . But 2 coding questions might be asked
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Q1. Did not happen . Don’t know why
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4 coding ques + 15 technical aptitude

4 Coding Ques + 10 technical aptitude

Q1. Coding question
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Q2. Group by query, dbms
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It was an online test for interview

Q1. Tell me about dijistkras algorithm
Ans. 
Dijkstra's algorithm is a graph search algorithm that finds the shortest path between nodes in a graph.
• Dijkstra's algorithm uses a priority queue to select the node with the smallest distance from the start node.

• It maintains a list of tentative distances to each node and updates them as it explores the graph.

• The algorithm is commonly used in routing and network protocols to find the shortest path between nodes.

• Example:...read more
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Q2. Tell me about your projects
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