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Powerdrift Studios Interview Questions and Answers

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Interview Questionnaire 

2 Questions

  • Q1. Implement LRU Cache
  • Ans. 

    LRU Cache is a data structure that stores the most recently used items and discards the least recently used items.

    • Use a hash table to store key-value pairs

    • Use a doubly linked list to keep track of the order of items

    • 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 back of the list

    • Lookup and insertion should be O(1) time complexity

  • Answered by AI
  • Q2. Implement 2 stacks in an array
  • Ans. 

    Implement 2 stacks in an array

    • Divide the array into two halves

    • Use top1 and top2 to keep track of top elements of stacks

    • Push and pop elements from respective halves

    • Check for overflow and underflow conditions

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Questions from trees and linkedin

Round 3 - Technical 

(2 Questions)

  • Q1. Question on dsa and on oops
  • Q2. Reverse linked list with multiple approach
  • Ans. 

    Reverse a linked list using multiple approaches.

    • Iterative approach: Use three pointers to reverse the links between nodes.

    • Recursive approach: Recursively reverse the rest of the list and adjust the links.

    • Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Free aws d resfg rtrt bert ert treytr ret ert ert tret tre tryr tr rt try tr ytry try tr ytry try try t ty try tr try

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Feb 2023. There were 4 interview rounds.

Round 1 - Coding Test 

The test consisted of 4 DSA questions (1 easy, 2 medium, 1 hard) that had to be completed in 2 hours. They were standard questions from Leetcode and the test was similar to Leetcode's weekly coding contest.

Round 2 - One-on-one 

(4 Questions)

  • Q1. Simple DSA questions like time complexity to insert in a Hash Map, the difference between singly and doubly linked lists, etc.
  • Q2. Subarray with sum 0
  • Ans. 

    Find subarray in an array with sum 0

    • Iterate through the array and keep track of the running sum

    • Store the running sum in a hashmap and check if the same sum has been seen before

    • If the sum is 0 or if the running sum is already in the hashmap, a subarray with sum 0 exists

  • Answered by AI
  • Q3. Linked List Cycle
  • Q4. Rainwater trapping proble
Round 3 - One-on-one 

(2 Questions)

  • Q1. Design a database for a blogging website
  • Ans. 

    Database design for a blogging website

    • Create tables for users, blog posts, comments, and categories

    • Use primary and foreign keys to establish relationships between tables

    • Include fields such as title, content, author, date, and tags

    • Implement indexing for faster retrieval of data

    • Consider implementing a caching mechanism for improved performance

  • Answered by AI
  • Q2. What can be done to balance the load of requests coming to a single server
  • Ans. 

    To balance the load of requests on a single server, one can implement load balancing techniques.

    • Implementing a load balancer to distribute incoming requests evenly across multiple servers

    • Using round-robin algorithm to route requests to different servers in a sequential manner

    • Utilizing server health checks to monitor the performance of each server and adjust the load distribution accordingly

  • Answered by AI
Round 4 - One-on-one 

(4 Questions)

  • Q1. Design database for my college
  • Ans. 

    Design a database for a college

    • Create tables for students, courses, professors, departments, and grades

    • Establish relationships between tables using foreign keys

    • Include attributes such as student ID, course ID, professor ID, department ID, and grade

    • Consider normalization to reduce redundancy and improve data integrity

  • Answered by AI
  • Q2. Pseudo code to validate password
  • Ans. 

    Pseudo code to validate password

    • Create a function that takes a password as input

    • Check if the password meets the required criteria (e.g. length, special characters)

    • Return true if the password is valid, false otherwise

  • Answered by AI
  • Q3. Strengths and weakness that can affect my profesional life
  • Q4. Challenges faced during the projects in my resum and how did I overcome them

Interview Preparation Tips

Topics to prepare for Carwale Associate Software Engineer interview:
  • System Design
  • DSA
Interview preparation tips for other job seekers - Practice more and more in coding contests, and please be honest in your resume as well as during an interview

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before May 2023. There were 3 interview rounds.

Round 1 - Coding Test 

5 questions of medium difficulty level covering topics like queue, dynamic programming, binary search, greedy.

Round 2 - Technical 

(1 Question)

  • Q1. System design. Using a NoSQL document schema. Design a document store schema to store bike model data.
Round 3 - HR 

(1 Question)

  • Q1. Willing to relocate to Navi Mumbai. Strengths and weekness General process related to my compatibility with the company.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Coding Test 

90 mins, easy, Data structures and algorithm basics

Round 2 - Technical 

(1 Question)

  • Q1. Given an array, remove all duplicates in place
  • Ans. 

    Remove duplicates from array of strings in place

    • Use a HashSet to keep track of unique elements

    • Iterate through the array and remove duplicates by checking if element is already in the HashSet

    • Update the array in place by shifting elements to fill in the removed duplicates

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Caching and its uses
  • Ans. 

    Caching is the process of storing data in a temporary location to reduce access time and improve performance.

    • Caching helps reduce the load on servers by serving frequently accessed data quickly

    • It can improve performance by reducing the time needed to retrieve data from the original source

    • Examples include browser caching, CDN caching, and database caching

  • Answered by AI
Round 4 - One-on-one 

(1 Question)

  • Q1. Personality grading

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

2 hours coding round, only 1 person out of 90 cleared

Round 2 - Technical 

(1 Question)

  • Q1. Asked loads of dsa, super technical questions

I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Discuss 4 case study related to supply chain management.

Interview Preparation Tips

Topics to prepare for Tech Mahindra Senior Software Engineer interview:
  • Supply Chain Management
Interview preparation tips for other job seekers - Develop some case study of your own and also deep analysis for each.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Nov 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Basic background
Round 3 - Technical 

(1 Question)

  • Q1. Direct and indirect tax compliances. Knowledge check in income tax and gst
Round 4 - Technical 

(1 Question)

  • Q1. This round was with VP of Finance containing questions related to again knowledge check of income tax and gst

Interview Preparation Tips

Topics to prepare for CarDekho Assistant Manager interview:
  • Income Tax
  • goods and service tax
  • income tax returns
  • TDS Return
  • annual reconciliation
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Java core, spring boot
  • Q2. DBMS concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on fundamentals, Revise core java concept

I applied via Naukri.com and was interviewed in Jan 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Explain group by clause with used cases
  • Ans. 

    Group by clause is used to group data based on a specific column in a table.

    • Used with aggregate functions like SUM, COUNT, AVG, etc.

    • Helps in analyzing data by grouping it based on a common attribute.

    • Can be used with multiple columns to create nested groups.

    • Example: GROUP BY department in a table of employees to get the total salary for each department.

  • Answered by AI
  • Q2. CountA,CountB,Countif used case in Google sheet
  • Ans. 

    CountA, CountB, Countif are functions used in Google Sheets to count cells based on certain criteria.

    • CountA counts the number of cells in a range that are not empty.

    • CountB counts the number of cells in a range that are not blank.

    • Countif counts the number of cells in a range that meet a certain condition.

    • Countif can be used with operators like >, <, =, and functions like AND, OR.

    • Countif can also be used with wildcards l

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Where have stayed...why want to switch...what will be your priority ..job or family

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview always on basic knowledge of MS SQL,and have strong knowledge on advanced MS Excel,basic knowledge on python,..but if you are fresher and showing projects on your resume.they can ask you from your project..So required end to end strong knowledge on the projects you have shown in your resume

Skills evaluated in this interview

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Powerdrift Studios Reviews and Ratings

based on 2 reviews

4.2/5

Rating in categories

5.0

Skill development

3.0

Work-life balance

4.8

Salary

4.0

Job security

5.0

Company culture

3.8

Promotions

5.0

Work satisfaction

Explore 2 Reviews and Ratings
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