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10+ Modak Analytics Interview Questions and Answers

Updated 10 Nov 2024

Q1. Logic for a program to sort an array in which we have an array of infinite length but contains only three elements like -1, 0,1.

Ans.

Sorting an array of infinite length with only three elements (-1, 0, 1)

  • Use counting sort algorithm to count the frequency of each element

  • Create a new array with sorted elements based on their frequency

  • Time complexity is O(n) and space complexity is O(1)

  • Example: [-1, 1, 0, 1, -1, 0, 1, -1, 0, 1, ...]

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Q2. Suggests few places in Hyderabad

Ans.

Hyderabad is a vibrant city with a mix of historical landmarks, modern attractions, and delicious food options.

  • Charminar - iconic monument in the heart of the city

  • Golconda Fort - historic fort with stunning architecture

  • Hussain Sagar Lake - picturesque lake with a giant Buddha statue

  • Ramoji Film City - world's largest film studio complex

  • Birla Mandir - beautiful temple dedicated to Lord Venkateswara

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Q3. Write a program to get minimum number of coins.

Ans.

Program to get minimum number of coins.

  • Create an array of coin denominations

  • Sort the array in descending order

  • Loop through the array and subtract the highest denomination possible

  • Repeat until the remaining amount is 0

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Q4. Favourite tv show

Ans.

My favourite TV show is Game of Thrones.

  • Epic fantasy series with complex characters and storylines

  • Based on the book series 'A Song of Ice and Fire' by George R.R. Martin

  • Known for its shocking plot twists and intense battles

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Q5. Overriding in java

Ans.

Overriding in Java allows a subclass to provide a specific implementation of a method that is already provided by its superclass.

  • Inheritance is a key concept in overriding, where a subclass inherits methods from its superclass.

  • To override a method, the method in the subclass must have the same name, return type, and parameters as the method in the superclass.

  • The @Override annotation can be used to ensure that a method is actually being overridden.

  • Overriding allows for polymor...read more

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Q6. Inheritance in java

Ans.

Inheritance in Java allows a class to inherit properties and behaviors from another class.

  • Allows for code reusability and promotes the concept of 'is-a' relationship

  • Subclass inherits fields and methods from superclass

  • Can override methods in subclass to provide specific implementation

  • Super keyword is used to access superclass methods and fields

  • Example: class Dog extends Animal {}

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Q7. Check the given sentence is palindrome or not by taking input by user.

Ans.

The program checks if a given sentence is a palindrome or not.

  • Prompt the user to input a sentence

  • Remove all spaces and punctuation from the sentence

  • Reverse the sentence and compare it with the original sentence to check for palindrome

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Q8. What are the languages based in sql

Ans.

Languages based in SQL include T-SQL, PL/SQL, and SQL/PSM.

  • T-SQL (Transact-SQL) is Microsoft's proprietary extension to SQL used in SQL Server.

  • PL/SQL (Procedural Language/SQL) is Oracle's procedural language extension to SQL.

  • SQL/PSM (SQL/Persistent Stored Modules) is a standard for defining stored procedures and functions in SQL.

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Q9. what do you understand by oops concepts

Ans.

Object-oriented programming concepts that focus on classes and objects

  • Encapsulation: bundling data and methods that operate on the data within a single unit

  • Inheritance: ability of a class to inherit properties and behavior from another class

  • Polymorphism: ability to present the same interface for different data types

  • Abstraction: hiding the complex implementation details and showing only the necessary features

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Q10. Difference between count, count(*)

Ans.

count(*) counts all rows in a table, while count(column_name) counts non-null values in a specific column.

  • count(*) counts all rows in a table

  • count(column_name) counts non-null values in a specific column

  • count(*) is generally used to get the total number of rows in a table

  • count(column_name) is used to count non-null values in a specific column

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Q11. Explain about data structures

Ans.

Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.

  • Data structures can be linear or non-linear

  • Examples of linear data structures include arrays, linked lists, and stacks

  • Examples of non-linear data structures include trees and graphs

  • Choosing the right data structure can greatly impact the efficiency of algorithms

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Q12. What are the three biggest learnings?

Ans.

The three biggest learnings as a Project Manager

  • Importance of effective communication

  • Adaptability and flexibility in managing changes

  • The significance of risk management

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