C# dispatch, exception và quyền sở hữu bộ nhớ

Nội dung luyện tập

• understand boxed value copy
• understand reverse disposal order
• distinguish as from explicit reference cast
• distinguish memory view from owned storage
• resolve virtual and hidden member dispatch
• recognize runtime array element type check
• separate dictionary atomicity from factory execution
• understand lazy factory exception caching
• find retention through event subscriptions
• preserve original exception stack
• separate pooled capacity from valid payload
• hold borrowed memory until async consumer finishes
• reason about overlapping span copy
• preserve caller owned stream while disposing wrapper
• place eager validation outside iterator body
• understand exception filter before stack unwind
• diagnose retained live data before tuning gc
• design native handle ownership and cleanup
• measure large allocation pressure before optimization
• distinguish single location atomicity from consistent snapshot

Mỗi câu đúng 1 điểm. Mục tiêu 70%. Đáp án và giải thích mở sau khi nộp bài.