這是一種可靠的方法——透過真實場景測試高級 C# 工程師的實務經驗。以下是
至少 30 個深入的高級面試問題,並附有詳細的解釋和答案。這些問題集中在交易處理、分散式系統、效能最佳化、安全性和系統設計——這些對於金融機構和整個產業都至關重要。
1) TRANSACTION FAILURE AND RETRY MECHANISMS
ANSWER
最好的方法是使用具有冪等性的重試機制。可以透過以下方式完成:
- 使用 Polly 實施重試策略:
失敗前最多重試 3 次。
使用指數退避來防止過載。
- 使用後台作業佇列(Hangfire、Quartz.NET 或 MassTransit):
- 基於資料庫的追蹤:
2. Deadlocks in SQL Transactions
ANSWER
- 使用一致的操作順序:
- 降低鎖定範圍:
- 發生死鎖時的重試邏輯:
3. Handling High-Volume Concurrent Transactions
Answer:
4. Preventing Double-Spending in Distributed Transactions
Answer:
5. Optimizing Database Queries for Real-Time Processing
Answer:
- 使用資料庫索引:
- 對大型查詢使用分頁:
6. Securing API Requests & Authentication
Answer:
7. Handling Long-Running Processes in .NET
Answer:
8. Handling Race Conditions in Multi-Threaded Environments
Answer
- 使用有行級鎖的資料庫事務:
9. Logging & Monitoring in Production
Answer:
10. Handling API Failures in a Microservices Architecture
Answer:
11. Handling Concurrency in a Banking System
Answer:
12. Preventing API Rate Abuse
Answer:
13. Ensuring Data Consistency Across Microservices
Answer:
14. Secure Storage of Sensitive User Data
Answer
15. Designing a Real-Time Fraud Detection System
Answer:
16. Avoiding Memory Leaks in Long-Running Services
Answer:
17. Designing a Scalable Logging System
Answer
18. Handling Time Zones in a Global Financial System
Answer
19. Scaling a .NET API to Handle Millions of Requests
Answer:
20. Optimizing SQL Queries for Large Data Processing
Answer:
21. Handling Large Reports in a Financial System
Answer
22. Eventual Consistency in Distributed Systems
Answer
23. Implementing Circuit Breakers in Microservices
Answer
24. Preventing Unauthorized Transactions
Answer:
25. Caching Strategies for Real-Time Banking Data
Answer:
26. Secure Storage of API Keys
Answer
27. WebSockets vs SignalR for Real-Time Updates
Answer
28. Handling Mass Fund Transfers Efficiently
Answer:
29. Role-Based Access Control (RBAC) in a Banking App
Answer:
30. Building an Event-Driven Architecture for Bank Notifications
Answer:
31. Using CQRS with Separate Read and Write Models in a Financial App
Answer:
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原文出處:https://dev.to/iamcymentho/mastering-the-senior-c-engineer-interview-3dc2