Fractal Analytics Intern Interview Questions and Answers

2 DSa questions + cs fundamentals mcq

Q1. System design e-commerce
Add your answer
Q2. SRE fundamentals
Add your answer

Q1. Managerial round, resume, work experience and stuff
Add your answer

Verbal reasoning quewstions

Q1. Technical and programming related questions
Add your answer
Q2. About the resume
Add your answer

Logical,general knowledge

A basic dynamic programming question similar to the "pick or not pick" problem.

Q1. Dsa questions cs fundamentals resume based questions
Add your answer

Q1. Longest Valid Parentheses
Ans. 
Find the length of the longest valid parentheses substring in a given string.
• Use a stack to keep track of the indices of opening parentheses.

• Iterate through the string and update the maximum length of valid parentheses.

• Handle cases where closing parentheses are encountered without a matching opening parentheses.
Answered by AI
Add your answer
Q2. Find the maximum number in the subarrays of length k.
Ans. 
Find the maximum number in the subarrays of length k.
• Iterate through the array and keep track of the maximum number in each subarray of length k.

• Use a sliding window approach to efficiently find the maximum number in each subarray.

• Time complexity can be optimized to O(n) using a deque data structure.
Answered by AI
Add your answer

Q1. Spiral Matrix Question
Add your answer

It was having basic aptitude questions

Q1. They asked basic english question
Add your answer
Q2. And alos topic was provided so we had to speak on it.
Add your answer

Q1. SQL syntax and difference between having and where clause
Ans. 
HAVING clause is used with GROUP BY to filter grouped rows, WHERE clause is used to filter individual rows.
• HAVING clause is used with GROUP BY to filter grouped rows based on aggregate functions

• WHERE clause is used to filter individual rows based on conditions

• HAVING clause is applied after GROUP BY, WHERE clause is applied before GROUP BY

• HAVING clause can only be used with SELECT statement that contains a GROUP BY clau
Answered by AI
Add your answer
Q2. Difference between array and linkedlist,stack and queue
Ans. 
Arrays store elements in contiguous memory, while linked lists use nodes with pointers. Stacks follow LIFO, queues follow FIFO.
• Arrays store elements in contiguous memory locations, allowing for constant time access to elements using indices.

• Linked lists use nodes with pointers to the next node, allowing for dynamic memory allocation and insertion/deletion at any position.

• Stacks follow Last In First Out (LIFO) principle...read more
Answered by AI
Add your answer

Q1. Tell me about your self
Ans. 
I am a data science enthusiast with a strong background in statistics and machine learning.
• Completed coursework in data analysis, statistical modeling, and predictive analytics

• Proficient in programming languages such as Python, R, and SQL

• Experience with data visualization tools like Tableau and Power BI

• Worked on projects involving regression analysis, clustering, and classification algorithms
Answered by AI
Add your answer
Q2. Why you want to join this role
Ans. 
I am passionate about using data to solve complex problems and make informed decisions.
• I have a strong background in statistics, mathematics, and programming, which are essential skills for a data science role.

• I am excited about the opportunity to work with real-world data and apply machine learning algorithms to extract valuable insights.

• I am eager to learn from experienced data scientists and contribute to innovative
Answered by AI
Add your answer

Basic math problems and English related questions

Write a program to give out the final score in a cricket match where number of deliveries will be the input and in a ball a batsman ca score either 1,0 or 2.

Q1. Write a program to separate strong for special characters
Ans. 
Program to separate strong for special characters in an array of strings
• Iterate through each string in the array

• For each string, iterate through each character

• Check if the character is a special character and separate it into a new string if it is
Answered by AI
Add your answer
Q2. General question about personal projects
Add your answer

Q1. Questions about OOPs concept
Add your answer
Q2. What is Function overloading and overriding?
Ans. 
Function overloading is having multiple functions with the same name but different parameters. Function overriding is redefining a function in a subclass.
• Function overloading allows multiple functions with the same name but different parameters.

• Function overriding involves redefining a function in a subclass with the same name and parameters as in the superclass.

• Example of function overloading: int add(int a, int b) an...read more
Answered by AI
Add your answer

Q1. General question on extra activities in the resume
Add your answer

2 DSa questions + cs fundamentals mcq

Q1. System design e-commerce
Add your answer
Q2. SRE fundamentals
Add your answer

Q1. Managerial round, resume, work experience and stuff
Add your answer