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:

LinkedIn Account : LinkedIn
Twitter Account : Twitter
圖片來源: CodeQuotient
原文出處:https://dev.to/iamcymentho/mastering-the-senior-c-engineer-interview-3dc2