Optum Global Solutions Software Developer Interview Questions, Process, and Tips

Linked lists, Arrays and strings

Q1. Reverse a string
Ans. 
Reverse a given string
• Use a loop to iterate through the characters of the string

• Append each character to a new string in reverse order

• Return the reversed string
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Q2. Find the kth element in an array
Ans. 
Find the kth element in an array
• Use array indexing to access the kth element

• Remember that array indices start from 0

• Handle cases where k is out of bounds of the array
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Code on de bounce and coding on closer

Q1. What are closer in js
Ans. 
Closures in JavaScript are functions that have access to variables from their outer scope even after the outer function has finished executing.
• Closures allow for maintaining state in an asynchronous environment.

• They are created whenever a function is defined within another function.

• Closures can be used to create private variables and functions in JavaScript.
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Q2. Write a code on debouncing
Ans. 
Debouncing is a technique used to limit the rate at which a function is called.
• Use a timer to delay the execution of a function until a certain amount of time has passed without the function being called again.

• Reset the timer each time the function is called to prevent it from being executed multiple times in quick succession.

• Debouncing is commonly used in scenarios like handling button clicks to prevent multiple rapid...read more
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Aptitude question and ds algo

Q1. Database normalisation
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Q2. Longest Consecutive Sequence
Ans. 
Find the longest consecutive sequence in an array of integers.
• Sort the array to make it easier to identify consecutive numbers.

• Iterate through the array and keep track of the current consecutive sequence length.

• Update the longest consecutive sequence length as you iterate through the array.
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Q1. Discussed complex joins in SQL as well as the internal working mechanisms and what makes it stand out from other distributed noSQL databases
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Q2. Also was asked implementation of insertion sort, variation of 2-sum and top view of a binary tree
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Q1. Find next max element
Ans. 
Find the next maximum element in an array of strings.
• Iterate through the array and keep track of the current maximum element.

• Compare each element with the current maximum and update if a larger element is found.

• Return the next maximum element after the current maximum.
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Q2. 2 data structure question
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Q3. Reverse linkedlist
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Every thing realted job

Q1. Any thing about knowledge communication skills etc
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