Merilytics Interview Questions, Process, and Tips

The aptitude test was just like any other test include topics on Analytical & Logical thinking, Data Interpretation etc. The key would be ability to understand & solve the problems quickly. Make sure to practice before the assessment.

There was a case study given for a random company in the apparels industry. The sales & related data was given for the company & the competitor and we needed to get insights & answer the questions that followed.

This case study was for a company selling 2nd hand cars. It was expected to arrive at a cutoff Credit Score of customers looking for a purchase and possible changes in the payment plans that would ensure a profitable purchase.

Q1. SQL Basics, Joins, Window functions, CTEs and temp tables Excel- basic functions like IF, Pivot
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Profit and loss scenario based case study

Q1. Related to work .experience. most of 8t was the previous role you do
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Basic coding on arrays, linked lists and trees.

Q1. Threading in general and how to implement in python.
Ans. 
Threading is a way to execute multiple threads simultaneously. Python has a threading module to implement it.
• Threading allows for concurrent execution of multiple threads.

• Python's threading module provides a way to create and manage threads.

• Threads can be created by subclassing the Thread class or by passing a callable to the constructor.

• The GIL (Global Interpreter Lock) in Python limits true parallelism, but threading...read more
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Q2. Mutable and immutable difference.
Ans. 
Mutable objects can be changed after creation, while immutable objects cannot be changed.
• Mutable objects can have their values modified after creation, while immutable objects cannot.

• Examples of mutable objects include lists, dictionaries, and sets.

• Examples of immutable objects include strings, tuples, and frozensets.
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Q3. Rain water trap DSA problem
Ans. 
The Rain water trap DSA problem involves calculating the amount of rainwater that can be trapped between given bars.
• The problem involves finding the maximum height of bars on either side of a given bar.

• Calculate the difference between the maximum height and the height of the given bar to get the amount of water trapped.

• Repeat the above steps for all bars to get the total amount of water trapped.
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Q4. Depth Frist search Graph application problem.
Ans. 
DFS is a graph traversal algorithm that explores as far as possible along each branch before backtracking.
• DFS can be used to find connected components in a graph.

• It can also be used to detect cycles in a graph.

• DFS can be implemented using recursion or a stack.

• DFS is not guaranteed to find the shortest path in a graph.

• DFS can be used to solve problems such as maze traversal and topological sorting.
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