Answer
Shallow copy: Copies only references of reference-type fields.
Deep copy: Creates a fully independent copy of the entire object graph.
Quick Answer
Shallow copy duplicates the top-level object but shares references to nested objects — change a nested object in the copy and the original is affected. Deep copy duplicates everything recursively — fully independent. C# has no built-in deep copy; use serialization or manual cloning.
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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