DataMetica Architect Interview Questions and Answers

Q1. What are the design considerations for creating a Twitter-like platform that caters to various use cases?
Ans. 
Designing a Twitter-like platform requires scalability, user engagement, security, and diverse content management.
• Scalability: Ensure the platform can handle millions of users and tweets, like Twitter's infrastructure with distributed databases.

• User Engagement: Implement features like trending topics, hashtags, and notifications to keep users active and informed.

• Security: Protect user data with encryption and implement...read more
Answered by AI
Add your answer
Q2. What are the main programming paradigms
Ans. 
Main programming paradigms include procedural, object-oriented, functional, and declarative programming, each with unique approaches.
• Procedural Programming: Focuses on procedures or routines (e.g., C, Pascal).

• Object-Oriented Programming: Uses objects to represent data and methods (e.g., Java, C++).

• Functional Programming: Emphasizes functions and immutability (e.g., Haskell, Scala).

• Declarative Programming: Focuses on wh...read more
Answered by AI
Add your answer

Round duration - 30 minutes
Round difficulty - Medium

This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.

Round duration - 60 minutes
Round difficulty - Medium

In this test round, 2 coding questions were given. Either write the code or pseudo code

Q1. 
N Queens Problem
Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.
Explanation:
A queen can attack another queen if they ar...read more
Add your answer
Q2. 
Sort 0 1 2 Problem Statement
Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.
Input:
The first line contains an integer 'T' representing the n...read more
Add your answer

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA.

Q1. 
Reverse Words in a String: Problem Statement
You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...read more
Add your answer
Q2. 
Circular Linked List Detection
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Note:
• A linked list is considered circula...read more
Add your answer

Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Round duration - 90 minutes
Round difficulty - Easy

There were two section Aptitude and Coding.

Q1. 
Buy and Sell Stock Problem Statement
Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' days. You can perform up to two buy-and-sell ...read more
Add your answer

Round duration - 60 minutes
Round difficulty - Easy

This was the first technical interview.

Q1. 
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
...read more
Add your answer

Q1. Java coding and development
Add your answer
Q2. Db and development skills
Add your answer

Q1. 1mcq 2techincal Hr 3.coding 4.manager round 5.hr
Add your answer
Q2. Java basics,oops,collection,sql joins
Add your answer