Answer
The .NET GC uses reachability analysis, not reference counting. Circular references pose no issue unless unreachable from GC roots.
Quick Answer
The .NET GC uses reachability analysis, not reference counting. It traces from GC roots (static fields, stack variables, CPU registers) and marks everything reachable. Circular references are not a problem — if neither object in the cycle is reachable from a root, both get collected.
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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