The Sultan Center Senior Software Engineer Interview Questions and Answers

Q1. Node JS internal
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Q2. Previous project discussion
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Q1. Design Search Systems
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Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.
• Understand the data structure of the search system (e.g. inverted index, trie)

• Implement efficient search algorithms (e.g. binary search, hash tables)

• Consider scalability and performance optimization techniques (e.g. caching, indexing)

• Include user-friendly features like autocomplete and spell corr...read more
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Anagram, Pythagorean triplets

Js coding test with modifications

Q1. Array related questions.
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Q1. Fundamentals and Basics of android, projects you are worked on.
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It was sort of pair programming where you will be told to implement some feature. Here they check your coding style, your approach and the architecture you follow.

Q1. Advanced android questions were asked and some scenario based questions.
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Q1. It was managerial round, most discussion were on my projects and past experience.
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Q1. CSS: Create a triangle using only CSS
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Use CSS to create a triangle shape
• Use border properties to create a triangle shape

• Set the width and height of the element to 0

• Use borders of different colors to create the triangle shape
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Q2. HTML: Change the CSS of a parent element by accessing only it's child element
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Use CSS selectors to target parent element based on child element
• Use the child element's class or ID to target the parent element

• Use the > combinator to select a parent element based on a direct child element

• Use the ~ combinator to select a parent element based on a sibling element
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Q3. JS: create a calculator function. everytime you call it, it should print the next elem in sequence (condition: shouldn't pass any param) - 5,11,29,83
Ans. 
Create a calculator function that prints the next element in sequence each time it is called.
• Create a function that keeps track of the current number in the sequence

• Each time the function is called, calculate the next number in the sequence based on the previous number

• Print the next number in the sequence each time the function is called
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Q4. React: create a context and provide it such that the language will be changed on a button click
Ans. 
Create a context in React to change language on button click
• Create a context using createContext() method

• Provide a state for language and a function to change it

• Wrap the components that need access to language context with Context.Provider

• Use useContext hook to access language context in components

• Update language state on button click
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Q1. Rotate matrix by 90 degree
Ans. 
Rotate a matrix by 90 degrees.
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q2. Longest substring with unique characters
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The question asks for finding the longest substring in a given string that contains only unique characters.
• Iterate through the string and keep track of the current substring

• Use a set to check for duplicate characters

• Update the longest substring if a longer one is found
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Q1. A trie question
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