Answer
Shallow copy copies only top-level values; reference fields still point to shared objects.
Deep copy duplicates the full object graph, ensuring complete independence at the cost of extra memory and performance.
Quick Answer
Shallow copy copies only top-level values — reference fields still point to shared objects. Modify a shared nested object and both copies see the change. Deep copy duplicates the entire object graph — fully independent but costs more memory and time. C# has no built-in deep copy utility.
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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