TEKsystems Senior Developer Interview Questions and Answers

Q1. Mvvm, oops, broadcast receiver, activity life cycle, aidl
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Q1. Project experience,
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Q1. Discussion of salary
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DSA questions and programming concepts

Q1. Reverse string and optimize it
Ans. 
Reverse array of strings efficiently
• Use two pointers approach to swap characters from start and end of each string

• Optimize by using in-place reversal instead of creating new strings

• Consider edge cases like empty strings or strings with only one character
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Q2. Reverse binary tree
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Q1. Salary expectations
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Q2. Joining location
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Q1. Multithreading, process and performance
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Q2. Process handling
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Q3. Coding questions
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Q1. OS questions,graph dfs question, geeks for geeks chocolate factory question
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Q1. Children sum property trees,height of BT
Ans. 
The question is about implementing a children sum property in trees and finding the height of a binary tree.
• Children sum property in trees means that the value of a node must be equal to the sum of the values of its children nodes.

• To find the height of a binary tree, you can recursively calculate the height of the left and right subtrees and return the maximum height plus one.

• Example: For a binary tree with nodes 1, 2,
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Q1. Kubernetes internals
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Q2. Spring boot internals
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Q1. Introduce yourself?
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Q1. Find the elements who's occurence more than one. find the even and odd index element in array using java8.
Ans. 
Using Java 8, find elements with occurrence more than one and separate even and odd index elements in an array of strings.
• Use Java 8 streams to group elements by their occurrence count and filter out those with count greater than one.

• Use Java 8 streams to filter elements at even and odd indexes in the array.
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Q1. Online Coding test
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Q1. About the project and role and responsibility. what are the challenges you worked on.
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Q1. Same technical panel took my interview from their office location through HR laptop
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A coding assignment using JavaScript and bootstrap

Q1. Basic behavioural questions in this round
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