MediaTek India Technology Senior Developer Interview Questions and Answers

Q1. What is oops concept example with each one
Ans. 
Object-oriented programming concepts include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class). Example: class Car with properties like make, model, and methods like start(), stop().

• Inheritance: creating new classes based on existing classes, inheriting their attributes and methods. Example: class SUV inheriting from cl...read more
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Q2. What is data structures and types with examples of all types
Ans. 
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
• Types of data structures include arrays, linked lists, stacks, queues, trees, graphs, and hash tables.

• Arrays are a collection of elements stored in contiguous memory locations, accessed using an index.

• Linked lists are a series of nodes where each node contains data and a reference to the next node.

• Stack...read more
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Q3. What is class and objects with example and code
Ans. 
A class is a blueprint for creating objects in object-oriented programming. Objects are instances of classes.
• A class defines the properties and behaviors of objects. For example, a 'Car' class may have properties like 'color' and 'model', and behaviors like 'drive' and 'stop'.

• An object is an instance of a class. For example, 'myCar' can be an object of the 'Car' class with specific values for 'color' and 'model'.

• Code e...read more
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Q4. What is virutal function and staic functions
Ans. 
Virtual functions are functions in a base class that are overridden in derived classes, while static functions belong to the class itself rather than instances.
• Virtual functions allow for dynamic binding and polymorphism in object-oriented programming.

• Static functions are associated with the class itself and can be called without creating an instance of the class.

• Example: virtual void display() = 0; // pure virtual fun...read more
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Q5. What is project u did in present company
Ans. 
Developed a web-based project management tool for tracking tasks and deadlines.
• Used AngularJS for front-end development

• Implemented RESTful APIs for communication between front-end and back-end

• Utilized MySQL database for storing project data
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Write a function over loading and friend class with example?

General aptitude questions

Problem solving, solved 2 out of 3 questions

General topics were given in gd

Q1. Programming concepts
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Q2. Projects and coding round questions solved
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Its basically a test comprising 32 mcq
12- logical reasoning
20- core C,DBMS, OS , Computer Networks

2 coding Questions

Q1. He just Gave me to design a React Page and removed all the starting code and gave me blank folder and asked to code all by myself
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Q2. He asked me SQL queries which was quite tough as its of nested queries
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Q1. What is normalization
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization is used to eliminate data redundancy by breaking up tables into smaller, related tables.

• It helps in reducing data anomalies such as insertion, update, and deletion anomalies.

• Normalization is achieved through a series of stages called normal forms, with the most common being First Normal Form (1NF)...read more
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Q2. Code for armstrong alogrithm
Ans. 
Armstrong algorithm is used to find Armstrong numbers in a given range.
• Iterate through the numbers in the given range

• Calculate the sum of cubes of each digit in the number

• Check if the sum is equal to the original number
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Q1. Count freq of elements in array
Ans. 
Count frequency of elements in array of strings
• Iterate through the array and use a hashmap to store the frequency of each element

• Use a for loop to go through each element and update the count in the hashmap

• Return the hashmap with element frequencies
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Q1. 5-10 Questions on Javascript concepts
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Q2. 2-3 medium level array coding questions
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Q3. 2 logical questions
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Q1. Friendly Communication
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Q1. One Leetcode medium level coding question
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Q2. Questions from your skills and the projects you have done so far
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1st round is combination of aptitude and technical mcqs

Q1. Tell me about ur projects
Ans. 
I have worked on various projects including a web-based inventory management system and a mobile app for tracking fitness goals.
• Developed a web-based inventory management system using React and Node.js

• Created a mobile app for tracking fitness goals using Flutter

• Collaborated with a team to implement new features and fix bugs in existing projects
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Q2. Tell me about two sum code in python
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Two sum code in Python finds two numbers in an array that add up to a specific target.
• Use a dictionary to store the difference between the target and each element in the array.

• Iterate through the array and check if the current element's complement is in the dictionary.

• Return the indices of the two numbers that add up to the target.
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