BOLD Technology Systems Software QA Engineer Interview Questions and Answers

Q1. LRU Cache - how to tackle
Ans. 
LRU Cache is a data structure that maintains a list of items in order of most recently used to least recently used.
• Implement using a doubly linked list and a hashmap for efficient operations

• When an item is accessed, move it to the front of the list

• When the cache is full, remove the least recently used item from the end of the list
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Q2. LRU Cache implementation based on a real time system. How would the main work which will be called etc etc
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3 questions easy-medium level leetcode problem I solved 2 completely and 3rd question partially (9/15 test cases passed) to move on to 2nd round

Q1. Implement an app similar to splitwise
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Implement your own state management in React and integrate it into a React application.

Got a leetcode easy question

I haven't appeared but this website asking me everytime that's why giving review but I wanted to know what are the ratings for this company

Q1. I haven't appeared but ratings it
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Q2. Why you choose uplers
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Reverse a binary tree

Q1. Basics of Spring
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Q2. Explain Spring MVC
Ans. 
Spring MVC is a framework for building web applications in Java.
• Spring MVC stands for Model-View-Controller

• It provides a way to structure your web application

• It uses annotations to define controllers, request mappings, etc.

• It supports RESTful web services

• It integrates with other Spring frameworks like Spring Boot
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Round duration - 30 minutes
Round difficulty - Easy

This was just a screening round to check my intention and communication skills. They just asked me why was I looking for a job change, and told me a little bit about the profile.

Round duration - 45 Minutes
Round difficulty - Easy

Since I had applied for a full stack profile, this round mainly consisted of front-end questions and some basic DSA questions. They had scheduled a call in the afternoon around 14:00 and the call was on Google meet where I had to share my screen and type in some code, once I was happy with my code and it worked fine, I had to paste it into the google doc. Actually, they had outsourced the interview rounds to the Interview Vector.

Q1. 
Flatten 2D Array Problem
Implement an iterator called ‘FLATTEN_2D’ to transform a two-dimensional array ‘ARR_2D’ into a one-dimensional array ‘ARR_1D’. The iterator should support the following operations...read more
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Q2. Implement a function 'sum' such that the following conditions hold: sum(1)(2)(3)(4)() returns 10, sum(1)() returns 1, and sum() returns 0.
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Round duration - 90 Minutes
Round difficulty - Easy

This round consisted of multiple easy DSA questions, some frontend questions, and one thought experiment related to design. Again, this round was conducted around 14:00 in the afternoon.

Q1. 
Anagram Pairs Verification Problem
Your task is to determine if two given strings are anagrams of each other. Two strings are considered anagrams if you can rearrange the letters of one string to form the...read more
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