How would you implement a depth-first search on a binary tree?
Backend Software Engineer Interview Questions
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Something along the lines of implement a cache. And a bunch of general questions regarding CS concepts that you either know it or don't. (It won't be hard if you have a CS degree or experience with SWE),
Describe what you know for TCP and UDP
use a codepad to implement a cacheing class
Oop concepts all with python framework and typecast
Challenge project was provided for completion.
Basically this coding question: https://www.geeksforgeeks.org/find-element-appears-array-every-element-appears-twice/
• Difference between array and ArrayList? • Difference between Set and List? • Set and List are classes or interfaces? • What is ArrayList’s parent class? • Is possible to use primitive types in arrays? • Is possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in Generics ? • Difference between StringBuilder and StringBuffer ? • How does Garbage Collector work? • What is the command to call GC execution? • Difference between memory heap and stack? • How do microsservices work? • How do we define security for application access?
Hackerrank - set up a rate-limiting functionality using Express.js
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