| 1 | What is multipart/form-data, and why does a Node.js server need special middleware (like multer) to handle file uploads? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Beginner |
| 2 | How would you validate and restrict uploaded file types and sizes using multer to prevent malicious or oversized uploads? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Intermediate |
| 3 | How would you stream a large file upload directly to processing (like virus scanning or transcoding) without first saving the entire file to disk? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Intermediate |
| 4 | Why should CPU-intensive media processing like image resizing or video transcoding typically not run directly inside an Express request handler? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Intermediate |
| 5 | How would you implement direct-to-S3 file uploads from a client, avoiding routing large file uploads through your Node.js server entirely? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Advanced |
| 6 | How would you implement resumable/chunked file uploads in Node.js to handle very large files over unreliable network connections? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Advanced |
| 7 | What is the security risk of trusting a client-supplied filename for an uploaded file, and how do you mitigate it? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Advanced |
| 8 | Why should an application typically avoid storing uploaded files directly on the same server instance that runs the web application? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Beginner |
| 9 | How would you implement a progress indicator for a large file upload from the client's perspective, given the Node.js server side? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Intermediate |
| 10 | How would you scan uploaded files for malware before accepting them into permanent storage in a Node.js application? Node.js › File Uploads & Media Processing | Node.js | File Uploads & Media Processing | Advanced |