Slice Interview Questions and Answers

Basic puzzles of medium complexity level. No improvement required

DSA questions of easy level. Asked for memory optimisations.

Q1. High level system design of wallet payment system, took example of paytm. This was hld questions so just basic components
Ans. 
Designing a wallet payment system like Paytm involves key components for transactions, security, and user management.
• User Authentication: Secure login via email, phone number, or biometrics.

• Wallet Management: Users can add, withdraw, and transfer funds.

• Transaction Processing: Real-time processing of payments and refunds.

• Merchant Integration: APIs for merchants to accept payments seamlessly.

• Security Measures: Encryption...read more
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Q1. Low level system design of parking lot system
Ans. 
Design a parking lot system at a low level
• Divide system into components like parking spots, ticketing system, payment system

• Implement data structures like queues for managing parking spots

• Use algorithms like least recently used for spot allocation

• Consider scalability and performance in design
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Q2. Review of one of my projects at past company
Ans. 
Led the development of a scalable e-commerce platform, enhancing user experience and increasing sales by 30%.
• Designed a microservices architecture to improve scalability and maintainability.

• Implemented a responsive UI using React, resulting in a 40% increase in mobile user engagement.

• Integrated payment gateways like Stripe and PayPal for seamless transactions.

• Utilized AWS for hosting, ensuring high availability and rel...read more
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Q1. What do you know about about export services
Ans. 
Export services refer to the sale of services to customers located outside the country of the service provider.
• Export services involve providing services to customers in foreign countries

• Taxation on export services may vary based on the country's tax laws

• Export services can include consulting, IT services, marketing, etc.

• Export services are often subject to VAT or GST exemptions
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Q2. Different forms of tds
Ans. 
Different forms of TDS include salary, interest, rent, commission, and professional fees.
• TDS on Salary

• TDS on Interest

• TDS on Rent

• TDS on Commission

• TDS on Professional Fees
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Q3. What is gstr1&3b
Ans. 
GSTR-1 and GSTR-3B are two types of GST returns filed by businesses in India.
• GSTR-1 is a monthly or quarterly return that contains details of outward supplies of goods or services.

• GSTR-3B is a monthly summary return that provides details of outward and inward supplies along with the payment of taxes.

• Both GSTR-1 and GSTR-3B are important for businesses to comply with GST regulations and ensure accurate tax reporting.

• Fil...read more
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Q4. Blocked credit supplies
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Q1. What is the purpose of conducting Know Your Customer (KYC) regards procedures?
Ans. 
KYC procedures ensure financial institutions verify customer identities to prevent fraud and comply with regulations.
• Identity Verification: KYC involves confirming the identity of customers through documents like passports or driver's licenses.

• Risk Assessment: Institutions assess the risk associated with a customer based on their profile, such as occupation and transaction history.

• Fraud Prevention: By understanding cus...read more
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Q2. What is video Know Your Customer (KYC)?
Ans. 
Video KYC is a digital process for verifying customer identity through live video interactions, enhancing security and convenience.
• Remote Verification: Customers can verify their identity from anywhere using a smartphone or computer, eliminating the need for in-person visits.

• Real-Time Interaction: Video KYC involves live video calls with KYC agents who guide customers through the verification process.

• Document Verificat...read more
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Q1. RCA Zepto delivery times
Ans. 
Analyzing the root causes of delivery time issues for Zepto's services.
• Supply Chain Delays: Disruptions in the supply chain can lead to longer delivery times. For example, if a supplier is late, it affects the entire process.

• Logistics Optimization: Inefficient routing or lack of delivery personnel can slow down the process. Implementing better route planning software can help.

• Demand Fluctuations: Sudden spikes in deman...read more
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Q2. Favourite product and grill on enhancements
Ans. 
My favorite product is the Spotify app, which revolutionizes music streaming with personalized playlists and user-friendly interface.
• Personalization: Spotify's algorithm curates playlists like 'Discover Weekly' based on user listening habits.

• User Interface: The app's clean design makes navigation intuitive, enhancing user experience.

• Social Features: Users can share playlists and see what friends are listening to, foste...read more
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