自学编程遇到瓶颈怎么办？

遇到瓶颈是正常的。建议：1. 动手做项目 (Project-based Learning)，不要只看视频；2. 善用 AI 助手 (如 Cursor, ChatGPT) 解释代码和逻辑；3. 加入全球技术社区 (如 Discord, GitHub) 与他人交流；4. 拆解大问题为小模块逐个击破。

如何构建一个具备全球竞争力的开发者作品集 (Portfolio)？

优秀的 Portfolio 不在多而在精。包含 2-3 个完整的、已上线的项目 (Live Demo) 最佳。每个项目应包含：GitHub 源码链接、在线演示地址、以及一份中英文 Readme 文档说明解决了什么问题、使用了什么技术栈。

AWS 120道单选测试题(4)

Q91. When creating a RESTful API into a DynamoDB table, which is the right service to facilitate this?

API Sync

AppSync

CloudAPI

API Gateway

Reference

Q92. Which AWS service is valid data source for AppSync?

DynamoDB table

ElastiCache

none of these answers

Step Functions

Reference

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Reviewer: Lightman WangFounder of JR Academy

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