Merkle Software Developer Interview Questions and Answers

Q1. Nth maximum element in an array with efficiency O(n) time
Ans. 
Find the nth maximum element in an array efficiently in O(n) time
• Iterate through the array once to find the maximum element

• Repeat the process n times to find the nth maximum element

• Use a variable to keep track of the current maximum element
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Q2. Python specific generator , decorator etc
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Few medium coding questions

Logical thinking was important for preparation

Q1. About the field u chose provide with examples
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Q2. Explain about sql
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to create, modify, and retrieve data from databases

• SQL is a declarative language, meaning you specify what you want to achieve rather than how to achieve it

• Common SQL commands include SELECT, INSERT, UPDATE, and DELETE

• SQL is used in various database management systems like MySQL, Orac
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Q1. The second round was also on techincal and the deep dicussion on field u chose
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Q1. Tell me about yourself
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Q2. Covered on all aspects and personality
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Q1. About yourself hobbies
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Q1. Spring security, JWT , Kakfa , Reverse vowels , suffix sum
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Q1. Basic java questions
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Q1. Salary discusion
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Q1. Explain joins in SQL
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• ...read more
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Q2. What are object and class in OOPs?
Ans. 
Objects are instances of classes in OOPs. Classes are blueprints for creating objects with attributes and methods.
• Objects are instances of classes

• Classes are blueprints for creating objects

• Classes define attributes and methods for objects

• Example: Class 'Car' with attributes like 'color' and methods like 'drive'
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Q1. 2 Technical rounds with HR round that's good
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Q2. Basic tech questions first 2nd round go little bit inside of code linked list
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Q3. Django total process
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Q1. Salary discussion, previous companies discussion
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Q2. Tell me about your company and roles responsibilities
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