Lumiq Software Developer Interview Questions and Answers

It includes questions from aptitude as well as coding related questions, JAVA was the most common language in which majority of the coding questions were

Q1. Questions related to the skills mentioned under Resume
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Q2. One DSA question is must, like Pallyndrome
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Q1. Questions regarding your project
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Q2. Questions regarding your internship experience and if any difficulties faced during internship
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There are total 60 question and 10-10 english ,resionning,aptitude and 20 DBMS question

Round duration - 60 minutes
Round difficulty - Medium

This round was conducted in the evening, it was a 1 hour round.

Q1. What are deadlocks in operating systems, and how can they be resolved?
Ans. 
Deadlocks in operating systems occur when two or more processes are unable to proceed because each is waiting for the other to release a resource.
• Deadlocks happen when processes hold resources and wait for others, creating a circular wait.

• Four conditions must hold for a deadlock to occur: mutual exclusion, hold and wait, no preemption, and circular wait.

• Deadlocks can be resolved using methods like prevention, avoidance...read more
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Round duration - 30 minutes
Round difficulty - Medium

Topics asked where OOPs, DBMS, DSA, SQL.
It was conducted on Microsoft Teams.

Q1. 
Covid Vaccination Distribution Problem
As the Government ramps up vaccination drives to combat the second wave of Covid-19, you are tasked with helping plan an effective vaccination schedule. Your goal is...read more
Ans. 
Maximize the number of vaccines administered on a specific day while adhering to certain rules.
• Given n days, maxVaccines available, and a specific dayNumber, distribute vaccines to maximize on dayNumber

• Administer positive number of vaccines each day with a difference of 1 between consecutive days

• Ensure sum of vaccines distributed does not exceed maxVaccines

• Output the maximum number of vaccines administered on dayNumber
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Q2. 
Maximum Subarray Sum Problem Statement
Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.
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Ans. 
Find the sum of the subarray with the maximum sum among all subarrays in an array of integers.
• Iterate through the array and keep track of the current sum and maximum sum.

• If the current sum becomes negative, reset it to 0.

• Return the maximum sum found.
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Round duration - 20 minutes
Round difficulty - Easy

It was 20 minutes round on Microsoft Teams. First, an 8 minutes psychometric round was conducted. According to the psychometric report, situations were discussed.