Aadhar Housing Finance Intern Interview Questions and Answers

Q1. Tell me about yourself.
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It was development based questions and one coding question was given.

Q1. Explain the concepts of oop.
Ans. 
OOP stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
• OOP focuses on creating objects that contain data and methods to manipulate that data.

• Encapsulation is a key concept in OOP, where data is hidden within objects and can only be accessed through methods.

• Inheritance allows objects to inherit attributes and methods from parent classes.

• Polymorphism allows objects to be treate...read more
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Q2. Project based questions.
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Q1. Mention a time when you faced a difficulty with your project and how you overcame it.
Ans. 
I faced a difficulty when my project deadline was moved up, but I overcame it by prioritizing tasks and seeking help from team members.
• Project deadline was unexpectedly moved up

• Prioritized tasks to meet new deadline

• Sought help from team members for support and guidance
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Q1. Classes of ip address
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IP addresses are divided into classes based on the number of network bits and host bits.
• There are five classes of IP addresses: A, B, C, D, and E.

• Class A addresses have the first bit set to 0 and can range from 1.0.0.0 to 126.0.0.0.

• Class B addresses have the first two bits set to 10 and can range from 128.0.0.0 to 191.255.0.0.

• Class C addresses have the first three bits set to 110 and can range from 192.0.0.0 to 223.255...read more
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Q1. Tell us about your experience
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Q2. Tell us about the projects
Ans. 
I have worked on various projects including developing a mobile app, creating a website, and conducting market research.
• Developed a mobile app for tracking daily water intake

• Created a website for a local non-profit organization

• Conducted market research to analyze consumer behavior in the tech industry
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Low-level design interview
I need to design a Music player app using oops concept

Q1. Sort the stack in O(1) time complexity
Ans. 
Use an additional stack to store sorted elements and maintain the minimum element at the top of the original stack.
• Create a new stack to store sorted elements.

• Pop elements from the original stack and compare with the top element of the new stack.

• If the popped element is smaller, push it to the new stack. If larger, keep popping from the new stack and push to the original stack until the correct position is found.

• Repeat...read more
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Q2. Difference between process and thread
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A process is an instance of a program running on a computer, while a thread is a smaller unit of execution within a process.
• A process has its own memory space, while threads within the same process share memory.

• Processes are independent of each other, while threads within the same process can communicate with each other.

• Processes are heavyweight, requiring separate memory and resources, while threads are lightweight an...read more
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Q3. Difference between abstract class and interface
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Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class is used to provide a common base for multiple derived classes, while interface is used to define a contract fo...read more
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Q4. What is race condition?
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A race condition is a situation in which the outcome of a program depends on the order of execution of its threads or processes.
• Occurs when multiple threads or processes access shared data or resources concurrently

• Can lead to unpredictable behavior or bugs in the program

• Prevented by using synchronization mechanisms like locks or semaphores

• Example: Two threads trying to increment a shared variable simultaneously
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Q5. What is normalization in dbms
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Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• It helps in reducing data redundancy by storing data in a structured way.

• There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc.

• Example: In a database of students, instead of storing student details in multiple ...read more
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