SIXT Research & Development Interview Questions and Answers

Use SQL JOIN to combine data from two tables based on a related column

• Use INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL JOIN depending on the requirement

• Specify the columns to join on using ON keyword

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

I maintain open communication and mutual respect with engineers, addressing conflicts through collaboration and compromise.

• Establish clear expectations and goals from the beginning

• Listen to their concerns and perspectives

• Work together to find a solution that meets both product and technical requirements

• Provide regular updates and feedback to ensure alignment

• Acknowledge and appreciate their expertise and contributions

Design scalable architecture for file storage and sharing for millions of users

• Use distributed storage system like AWS S3 or Google Cloud Storage

• Implement sharding to distribute load across multiple servers

• Use CDN for faster file access and delivery

• Implement strong encryption for data security

• Use efficient indexing and caching mechanisms for quick file retrieval

Design a sleek and eco-friendly robo-taxi tailored for the European market.

• Prioritize safety features such as collision avoidance systems and emergency braking

• Ensure the design is compact and efficient for navigating narrow European streets

• Include sustainable materials and energy-efficient technology to appeal to environmentally-conscious consumers

• Integrate advanced AI technology for autonomous driving capabilities

• Offer a user-friendly interface with multiple language options...read more

A meeting scheduler to manage and organize meetings efficiently

• Allow users to input meeting details such as date, time, duration, and participants

• Provide options to check availability of participants and suggest available time slots

• Send notifications and reminders to participants

• Integrate with calendar apps for easy scheduling and tracking

Design a parking lot

• Consider the size and capacity of the parking lot

• Decide on the layout and organization of parking spaces

• Implement a system to manage parking availability and reservations

• Include features like ticketing, payment, and security

• Consider accessibility and convenience for drivers