Application Development Associate

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Application Development Associate Interview Questions and Answers for Freshers

Updated 30 Sep 2024

Q1. Sum of Even & Odd Digits Problem Statement

Create a program that accepts an integer N and outputs two sums: the sum of all even digits and the sum of all odd digits found in the integer.

Explanation:

Digits ref...read more

Ans.

Create a program to find the sum of even and odd digits in an integer.

  • Iterate through each digit of the integer and check if it is even or odd

  • Keep track of the sum of even digits and odd digits separately

  • Print the sums of even and odd digits at the end

Q2. Postfix Expression Evaluation Problem Statement

Given a postfix expression, your task is to evaluate the expression. The operator will appear in the expression after the operands. The output for each expression...read more

Ans.

Evaluate postfix expressions by applying operators after operands. Return result modulo (10^9+7).

  • Read the postfix expression from input

  • Use a stack to store operands and apply operators

  • Perform modular division when necessary

  • Output the final result for each test case

Q3. coding question - find the duplicate elements present in a given array

Ans.

Find duplicate elements in an array

  • Iterate through the array and compare each element with all other elements

  • If a match is found, add it to a separate array

  • Return the array of duplicate elements

Q4. Explain me what is Encapsulation

Ans.

Encapsulation is the process of hiding implementation details and restricting access to an object's properties and methods.

  • Encapsulation helps in achieving data abstraction and security.

  • It allows for better control over the data and prevents unauthorized access.

  • Encapsulation is implemented using access modifiers such as public, private, and protected.

  • For example, a bank account class may have private variables for account number and balance, and public methods for deposit and...read more

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Q5. Why do we use Python

Ans.

Python is a versatile, high-level programming language used for web development, data analysis, artificial intelligence, and more.

  • Python is easy to learn and read, making it a popular choice for beginners.

  • It has a vast collection of libraries and frameworks for various purposes.

  • Python is used in web development (Django, Flask), data analysis (Pandas, NumPy), artificial intelligence (TensorFlow, Keras), and more.

  • It supports multiple programming paradigms, including object-orie...read more

Q6. Types of services provided by AWS

Ans.

AWS provides a wide range of services including compute, storage, database, networking, analytics, machine learning, and more.

  • Compute services: EC2, Lambda, Elastic Beanstalk

  • Storage services: S3, EBS, Glacier

  • Database services: RDS, DynamoDB, Redshift

  • Networking services: VPC, Direct Connect, Route 53

  • Analytics services: Athena, EMR, Kinesis

  • Machine Learning services: SageMaker, Rekognition, Polly

  • Other services: IoT, Security, Management Tools

  • AWS also offers a marketplace for thi...read more

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Q7. Tell story for 2 minutes

Ans.

I will tell you about my experience volunteering at a local animal shelter.

  • Started volunteering at the shelter during college breaks

  • Helped with feeding, cleaning, and socializing with the animals

  • Organized adoption events and fundraisers

  • Developed a strong bond with the animals and fellow volunteers

Q8. Tell me what is oops

Ans.

Object-oriented programming paradigm that focuses on objects and classes for code organization and reusability.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

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

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

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