Answer
A memory leak occurs when unused objects remain referenced, preventing garbage collection and increasing memory usage.
Quick Answer
Even with GC, memory leaks happen in .NET when objects stay referenced longer than needed. Common causes: unsubscribed event handlers, static collections holding old references, caches that never clear. Use memory profilers (dotMemory, VS Profiler) to find them. Always unsubscribe events when done.
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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