Mock System Design Interview is a Generative Pre-trained Transformer (GPT) designed to perform interactive mock system design interviews. Facilitated by Jasper Zephyr, it provides a virtual platform for individuals seeking to simulate a system design interview experience. It is intended to assist users in understanding potential interview scenarios and preparing their responses accordingly.This particular GPT operates on top of ChatGPT and initiates sessions with a welcoming message inviting users to a mock system design interview. It then continues the interactive session using various prompts starting from initiating a mock interview to more specific questions related to designing systems.For instance, this tool might prompt users with questions like 'What are key considerations for a cloud storage system?', 'Can you explain the trade-offs in database selection?', or 'How do you approach designing a real-time analytics system?'. These questions are designed to mimic real-life interview settings, helping the user prepare better by understanding the considerations and trade-offs in system design.The Mock System Design Interview GPT is an excellent tool for individuals preparing for technical interview rounds related to system design. It helps users comprehend nuances associated with system design, from database selection to designing real-time analytics systems. However, users must be ChatGPT Plus members to be able to use this tool, suggesting an additional requirement in terms of subscription.In sum, Mock System Design Interview offers a platform for adequate system design interview preparation and skill enhancement, making it a valuable resource for aspiring professionals.