Answer
Validate file types and sizes.
Store files securely.
Use streaming for large downloads.
CDNs improve performance.
Store files securely.
Use streaming for large downloads.
CDNs improve performance.
Quick Answer
File uploads: Django: request.FILES, FileField/ImageField model fields. Validate file size and type. Store: locally (FileSystemStorage), S3 (django-storages with boto3). Flask: request.files, werkzeug.secure_filename() to sanitize filenames. FastAPI: UploadFile type. Always validate MIME type server-side (not just extension). Downloads: StreamingResponse for large files to avoid memory issues.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ