10+ IDFC FIRST Bank Interview Questions and Answers

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

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.

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

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

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

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

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

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

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