RapidQube Digital Solutions Associate Engineer Interview Questions and Answers

In this round you have to clear Aptitude and Basic Coding

It is pure coding test which is conduct on hacker rank platform. You have to complete 4 question(1 easy + 2 medium + 1 hard)

Q1. Coding question base on Sorting and Array
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Q2. Some of theory question base on your Project technology and DSA
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Q1. Tell me about yourself.
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Q1. Find the duplicate items in the array.
Ans. 
Find duplicate items in array of strings.
• Iterate through array and store each item in a hash set.

• If item already exists in hash set, it is a duplicate.
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Q1. Javascript basics questions
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Round duration - 60 minutes
Round difficulty - Easy

Technical interview round with questions on DSA and DBMS mainly.

Q1. 
Maximum Sum Subarray Problem Statement
Given an array ARR consisting of N integers, determine the sum of the subarray with the maximum sum, including the possibility of an empty subarray.
A subarray is a...read more
Ans. 
Find the sum of the subarray with the maximum sum in a given array.
• Iterate through the array and keep track of the current sum and maximum sum.

• Update the maximum sum if the current sum becomes greater.

• Handle cases where the array has all negative numbers or empty subarray.

• Example: For input [-2, 1, -3, 4, -1], the maximum sum subarray is [4] with sum 4.
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Q2. 
Prime Numbers Identification
Given a positive integer N, your task is to identify all prime numbers less than or equal to N.
Explanation:
A prime number is a natural number greater than 1 that has no po...read more
Ans. 
Identify all prime numbers less than or equal to a given positive integer N.
• Iterate from 2 to N and check if each number is prime

• Use the Sieve of Eratosthenes algorithm for efficient prime number identification

• Optimize by only checking numbers up to square root of N for divisibility
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Q3. What are Joins in the context of databases?
Ans. 
Joins in databases are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right ta...read more
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Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Hackerrank Test

Q1. Questions related to NodeJS and Javascript Basics
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Q1. Technical questions based on past experience
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Q1. Company Culture related
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Q1. Expectations and Processes
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The aptitude test was of moderate level.

It checked on the concepts of oops

Q1. How will you deal with tight delivery time.
Ans. 
I will prioritize tasks, communicate effectively with team members, and utilize time management techniques to meet deadlines.
• Prioritize tasks based on importance and urgency

• Break down tasks into smaller manageable chunks

• Communicate effectively with team members to coordinate efforts

• Utilize time management techniques such as Pomodoro technique or Agile methodologies

• Identify and eliminate any potential roadblocks or bott...read more
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Basic java questions along with aptitude questions.

Q1. Basic oops concept, java functionalities, spring framework.
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Q1. Basic Hr questions, when you can join, expected ctc...
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