Japam Interview Questions and Answers

- write code for permutations & combination out of n numbers with k possibilities

Q1. - diff between generator & decorator - write code for recursive decorator
Ans. 
Generator produces a sequence of values while decorator adds functionality to an existing function. Recursive decorator calls itself within the decorator function.
• Generator produces values lazily while decorator enhances functionality of a function.

• Generators use 'yield' keyword to yield values one at a time.

• Decorators use '@' symbol to apply additional functionality to a function.

• Example of recursive decorator: def re...read more
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Q2. Explain generators
Ans. 
Generators are functions in Python that allow you to pause and resume execution, yielding multiple values over time.
• Generators are defined using a function with 'yield' statements instead of 'return'.

• They can be iterated over using a for loop or by calling the next() function.

• Generators are memory efficient as they do not store all values in memory at once.

• They are useful for generating large sequences of values or pro...read more
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Q3. Sample application using flask
Ans. 
A sample application using Flask, a Python web framework
• Create a virtual environment for the project

• Install Flask using pip

• Create routes and views for different pages

• Use templates to render HTML pages

• Connect to a database using Flask-SQLAlchemy
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Q1. Can you tell me about yourself?
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Q2. What is product knowledge?
Ans. 
Product knowledge is understanding the features, benefits, and uses of a product or service.
• Understanding the features and specifications of the product

• Knowing the benefits and advantages it offers to customers

• Being aware of how the product can be used in different scenarios

• Having knowledge of competitors' products and how they compare

• Being able to effectively communicate the value of the product to potential customers
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Q1. Witch what phone are you using? and what about your uses .
Ans. 
I am currently using an iPhone X for both personal and professional use.
• I use my phone for communication with clients and colleagues through calls, emails, and messaging apps.

• I also use it for scheduling appointments and managing my calendar.

• For personal use, I use it for social media, entertainment, and staying connected with friends and family.

• The iPhone X's camera is also great for capturing photos and videos for wo
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Q2. I am using MI Brand phone and my use’s is camera photo video editing online payment net banking gaming and ext
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Satisfying Competitive Test

Q1. Related Work History
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Q2. Introduction and
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Q1. Basic javascript questions and node js questions and problem solving skills
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Q1. Architecture of the projects/products worked. integration between the two systems and in depth/ES6 features on JavaScript
Ans. 
I have worked on projects with scalable architecture and integrated multiple systems using ES6 features in JavaScript.
• Developed a microservices-based architecture for a healthcare platform using Node.js and React

• Integrated payment gateway systems with e-commerce websites using REST APIs

• Implemented ES6 features like arrow functions, template literals, and destructuring for cleaner code

• Used Webpack for bundling and Babel...read more
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Q1. Technical knowledge on architecture and AWS
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Q1. How was i managed work in previous employer. and achievements
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Q1. What is your understanding of data modeling?
Ans. 
Data modeling is the process of creating a visual representation of data structures and relationships to facilitate understanding and usage.
• Defines how data is connected and stored, e.g., ER diagrams for relational databases.

• Helps in database design, ensuring data integrity and efficiency.

• Facilitates communication between stakeholders, e.g., developers and business analysts.

• Types include conceptual, logical, and physic...read more
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Q2. What are the different types of schemas used in Power BI?
Ans. 
Power BI uses various schemas like Star, Snowflake, and Galaxy for data modeling and organization.
• Star Schema: Simplified structure with a central fact table connected to dimension tables. Example: Sales data with dimensions like Product and Customer.

• Snowflake Schema: More complex, with normalized dimension tables. Example: A product dimension split into categories and subcategories.

• Galaxy Schema: Combination of multip...read more
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Q1. What challenges did you face in your previous company, and how did you address them?
Ans. 
Faced challenges in project deadlines and team communication, resolved through agile practices and regular check-ins.
• Implemented agile methodologies to improve project timelines, resulting in a 20% increase in on-time delivery.

• Facilitated weekly stand-up meetings to enhance team communication, which reduced misunderstandings and improved collaboration.

• Addressed resource allocation issues by cross-training team members,...read more
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Q2. Which model were you working on?
Ans. 
I worked on a predictive maintenance model using machine learning to optimize equipment uptime and reduce operational costs.
• Utilized historical sensor data to predict equipment failures.

• Implemented algorithms like Random Forest and Gradient Boosting.

• Achieved a 20% reduction in downtime through proactive maintenance.

• Collaborated with cross-functional teams to integrate the model into existing systems.
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Q1. What is your current Cost to Company (CTC)?
Ans. 
My current CTC is structured to reflect my skills, experience, and contributions to the organization.
• My current CTC is $120,000 annually, which includes base salary and bonuses.

• It consists of a base salary of $100,000, with $20,000 in performance bonuses.

• Additionally, I receive benefits such as health insurance, retirement contributions, and stock options.
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Q2. What is your expected cost to company (CTC)?
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They shared me link for Hacker rank assessment with 2 coding questions

Q1. Related to Encapsulation in JS
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Q2. Core concepts of JS
Ans. 
Core concepts of JavaScript include variables, data types, functions, objects, and control flow.
• Variables are used to store data values.

• Data types include strings, numbers, booleans, arrays, and objects.

• Functions are blocks of code that can be called and executed.

• Objects are collections of key-value pairs.

• Control flow includes if statements, loops, and switch statements.
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Good 2 set of problems

Elitmus test in second round

Q1. Basic string questions
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Q2. Sub array question , easy in leetcode
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