Wishtree Technologies Software Engineer Interview Questions and Answers

The aptitude test was relatively straightforward, consisting of both aptitude and technical questions, with a difficulty level ranging from easy to medium.

Q1. Was asked to write a code on basic DSA concept
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Q2. Then was asked basic questions on DSA and SQL
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Q1. Asking about the whereabouts
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Q2. Checking com skills and availability
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Q1. Basic questions based on resume
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Q2. Basic .net questions
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Q3. Logical questions related to problem solving
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Q1. What is single page application
Ans. 
Single page application is a web application that loads a single HTML page and dynamically updates the content as the user interacts with the app.
• SPA uses AJAX and HTML5 to create fluid and responsive user experience.

• It eliminates the need for page reloading during use, making it faster and more efficient.

• Examples include Gmail, Facebook, and Google Maps.
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Q2. What is state management
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State management is the process of managing the state of an application, including data flow, user interface updates, and user interactions.
• State management involves storing and updating the state of an application to ensure data consistency.

• It helps in managing user interface updates based on changes in the application state.

• State management is crucial for handling user interactions and maintaining a seamless user exp...read more
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Q1. Basic flutter coding questions
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Q1. What is jdk, string related questions, basic java oops questions?
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The aptitude test was of moderate level.

It checked on the concepts of oops

Q1. How will you deal with tight delivery time.
Ans. 
I will prioritize tasks, communicate effectively with team members, and utilize time management techniques to meet deadlines.
• Prioritize tasks based on importance and urgency

• Break down tasks into smaller manageable chunks

• Communicate effectively with team members to coordinate efforts

• Utilize time management techniques such as Pomodoro technique or Agile methodologies

• Identify and eliminate any potential roadblocks or bott...read more
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Q1. What's does the useCallback and usememo in react ?
Ans. 
useCallback and useMemo are hooks in React used for performance optimization.
• useCallback is used to memoize a function and prevent unnecessary re-renders.

• useMemo is used to memoize a value and prevent unnecessary re-computations.

• Both hooks are used to optimize performance by reducing unnecessary re-renders and re-computations.

• useCallback is useful when passing down functions to child components.

• useMemo is useful when c...read more
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Q2. What's difference between async await and promise ?
Ans. 
Async/await is a syntactic sugar over Promises in JavaScript.
• Async/await makes asynchronous code look and behave like synchronous code.

• Promises are objects that represent the eventual completion or failure of an asynchronous operation.

• Async/await is easier to read and write than Promises.

• Async/await can only be used in functions that are marked as async.

• Promises can be used anywhere in the code.
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Q1. What is the difference between classes and struct
Ans. 
Classes are reference types while structs are value types.
• Classes support inheritance while structs do not.

• Classes have default access modifier as internal while structs have it as private.

• Classes have a destructor while structs do not.

• Classes are allocated on heap while structs are allocated on stack.

• Classes can be null while structs cannot.
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Q2. Dispatch Queue vs operations
Ans. 
Dispatch Queue is a thread-safe way to execute tasks asynchronously, while Operations are a way to encapsulate tasks.
• Dispatch Queue is a high-level API for managing concurrent operations.

• Operations are objects that encapsulate a single task or multiple tasks.

• Dispatch Queue is simpler to use and recommended for most use cases.

• Operations provide more control over task dependencies and cancellation.

• Both can be used togeth
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