Avalara Technologies Software Developer Interview Questions, Process, and Tips

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Q1. Explain various Opps concept
Ans. 
OOPs concepts refer to Object-Oriented Programming concepts which include Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation...read more
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Q2. Explain various db concepts
Ans. 
DB concepts include normalization, indexing, transactions, and query optimization.
• Normalization: Organizing data into tables to reduce redundancy and improve data integrity.

• Indexing: Creating indexes on columns to speed up data retrieval.

• Transactions: Grouping database operations into atomic units to ensure data consistency.

• Query optimization: Improving the performance of database queries by optimizing execution plans.
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Round duration - 90 minutes
Round difficulty - Hard

Q1. 
Minimum Number of Taps to Water the Garden
Given a garden that extends along a one-dimensional x-axis from point 0 to point N, your task is to determine the minimum number of taps needed to water the enti...read more
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Q2. 
DFS Traversal Problem Statement
Given an undirected and disconnected graph G(V, E), where V is the number of vertices and E is the number of edges, the connections between vertices are provided in the 'GR...read more
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Round duration - 90 minutes
Round difficulty - Medium

Q1. 
Return Subsets Sum to K Problem Statement
Given an integer array 'ARR' of size 'N' and an integer 'K', return all the subsets of 'ARR' which sum to 'K'.
Explanation:
A subset of an array 'ARR' is a tupl...read more
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Q2. 
Palindrome Partitioning Problem Statement
You are given a string S. Your task is to partition S such that every substring of the partition is a palindrome. Your objective is to return all possible palindr...read more
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Round duration - 50 minutes
Round difficulty - Easy

Mainly this round consisted of project discussion and 1 coding problem.

Q1. 
Queue Using Stacks Implementation
Design a queue data structure following the FIFO (First In First Out) principle using only stack instances.
Explanation:
Your task is to complete predefined functions t...read more
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