Mak India Business Solutions Interview Questions and Answers

Q1. About yourself educational background family background
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Q1. Accounts and experience related questions
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Q1. Tell me about yourself, skills, previous positions
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Q2. No questions i have further
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Q1. Electrical Design Related
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Q1. Electrical power
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Q1. What is real dom and virtual dom in react
Ans. 
Real DOM is the actual representation of the HTML structure, while Virtual DOM is a lightweight copy used for efficient updates.
• Real DOM is slower as it directly manipulates the HTML structure.

• Virtual DOM is faster as it updates the lightweight copy and then syncs with the real DOM.

• React uses the Virtual DOM to minimize unnecessary re-rendering of components.

• Virtual DOM allows for efficient batch updates, improving per...read more
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There were 6 questions to be solved. 3 average and 3 tough questions.

Q1. Concepts ask in interview Java Threads Exception Collections Spring boot annotations Git
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Q1. A general conversations, regarding my experience, project.
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Q1. Write unit testing for adding two nimbers
Ans. 
Unit testing for adding two numbers
• Create a test case with two numbers and expected sum

• Call the function that adds two numbers

• Assert that the result matches the expected sum
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Q1. Explain challenge you faced in your last project
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Q1. Salary expectations
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Q1. Process synchronisation and threads.
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Linked list and sorting. Linux system side programming.

Q1. Thread synchronisation. Locking.
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Q1. Managerial discussion. Threading and watchdog related stuff.
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Tree, LinkedList, Array

Q1. Find depth of a tree
Ans. 
The depth of a tree is the length of the longest path from the root node to any leaf node.
• Depth of a tree can be found using depth-first search (DFS) algorithm.

• The depth of a tree is equal to the maximum depth of its children plus one.

• For example, in a binary tree, the depth of the tree is the maximum depth of the left and right subtrees plus one.
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Q2. Merge two sorted arrays
Ans. 
Merge two sorted arrays into a single sorted array
• Create a new array to store the merged result

• Use two pointers to iterate through both arrays and compare elements

• Add the smaller element to the new array and move the pointer for that array
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Question was moderate. Good knowledge of dsa needed. CP not mandatory.

Q1. Question on oops principals, complexity analysis of programs, c++ concepts of classes, memory allocation etc.
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Q2. How much memory is allocated when a class is declared? How much when instance is created ? And so on...
Ans. 
Memory allocation for class and instance creation in Java
• Memory is allocated for class variables and methods when the class is loaded into memory

• Memory for instance variables is allocated when an instance of the class is created

• The amount of memory allocated depends on the data type and size of the variables

• Static variables are allocated memory only once, while instance variables are allocated memory for each instance

• M...read more
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Q1. What do you understand by distributed systems, multitasking multiprograming etc, overview idea of amazon working etc.
Ans. 
Distributed systems involve multiple computers working together, multitasking allows for multiple tasks to be performed simultaneously, Amazon uses distributed systems for their online services.
• Distributed systems involve multiple computers working together to achieve a common goal

• Multitasking allows for multiple tasks to be performed simultaneously by a single computer

• Multiprogramming allows multiple programs to run o...read more
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Q1. Basic hr questions like relocation, aim etc.
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