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10+ IDFC FIRST Bank Interview Questions and Answers
Q1. Recycling Pens Problem Statement
Imagine you have a certain number of empty pens, and some money in your pocket. For each pen, you can choose to either recycle it for a reward or buy a refill to make it usable ...read more
Given empty pens, money, and costs, maximize usable pens by recycling and buying refills.
Calculate total money after recycling pens
Determine number of refills that can be bought with the money
Combine refills with remaining pens to maximize usable pens
Q2. What is a CDN? How does the browser work?
CDN stands for Content Delivery Network. Browser works by sending requests to servers and receiving responses.
CDN is a network of servers that deliver content to users based on their geographic location.
CDN reduces latency and improves website performance.
Browser sends HTTP requests to servers and receives responses containing HTML, CSS, JS, and other assets.
Browser renders the received content and displays it to the user.
Q3. Design VS code(any IDE)
Designing an IDE like VS code requires a deep understanding of software development and user experience.
Identify the target audience and their needs
Choose the programming languages and frameworks to support
Create a user-friendly interface with customizable features
Implement debugging and testing tools
Ensure compatibility with different operating systems
Continuously update and improve the IDE based on user feedback
Q4. What if we want to remove password login mechanism in our product as it is the requirement of the clients.
Q5. SSR vs Client rendering
SSR renders the initial page on the server side while client rendering renders the page on the client side.
SSR improves SEO as search engines can crawl the fully rendered page on the server side.
Client rendering provides faster initial load times as only data is fetched initially and UI is rendered on the client side.
SSR is better for static content websites while client rendering is better for dynamic content websites.
Examples: Next.js uses SSR, React.js uses client renderin...read more
Q6. CREATE A KIP TO TRACK CUSTOMER SATISFACTION
Create a KPI to track customer satisfaction.
Define the metrics to measure customer satisfaction, such as Net Promoter Score (NPS) or Customer Satisfaction Score (CSAT).
Set a target for the KPI based on industry benchmarks or company goals.
Collect feedback from customers through surveys, social media, or customer support interactions.
Analyze the data to identify trends and areas for improvement.
Regularly report on the KPI to stakeholders and take action to improve customer sat...read more
Q7. High level design of Ecommerce app
An Ecommerce app requires a high level design to ensure smooth user experience and efficient functionality.
Identify user personas and their needs
Design intuitive navigation and search functionality
Implement secure payment gateway
Integrate with inventory management system
Ensure scalability and performance
Provide personalized recommendations and promotions
Q8. Design a side bar with lot of elements
Design a side bar with lot of elements
Consider using a collapsible menu for better organization
Use icons or symbols for each element to save space
Implement a search bar for easy navigation
Include categories or sections to group similar elements together
Q9. create API's for calendly app
APIs for Calendly app
Create endpoints for scheduling, cancelling, and rescheduling appointments
Implement authentication and authorization for API access
Include error handling and response codes for each endpoint
Provide documentation for API usage and parameters
Q10. Typical AWS and Kubernetes Concepts
AWS and Kubernetes are popular cloud computing platforms with key concepts like EC2, S3, EKS, and Pods.
AWS: Elastic Compute Cloud (EC2) for scalable virtual servers
AWS: Simple Storage Service (S3) for object storage
Kubernetes: Elastic Kubernetes Service (EKS) for managing containerized applications
Kubernetes: Pods as the smallest deployable units in Kubernetes
Q11. Design 2 factor authentication
Implementing 2 factor authentication for enhanced security
Require users to enter their password as the first factor
Send a unique code to the user's registered email or phone as the second factor
Prompt the user to enter the code to complete the authentication process
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