Скачать или смотреть AWS Certified Developer - Associate (DVA-C02) | Real Exam Questions & Answers | Part 7 (Q121-140)

Welcome to Part 7 of our AWS Certified Developer - Associate (DVA-C02) exam prep series!

In this session, we break down Questions 121-140, focusing on advanced troubleshooting and optimization techniques. If you've ever struggled with Cold Starts in Lambda, debugging distributed applications with AWS X-Ray, or securing your logs in CloudWatch, this video provides the exact answers you need.

We also dive deep into "Production-Ready" patterns, such as using Field-Level Encryption in CloudFront to protect PII before it even reaches your backend .

IN THIS SESSION, WE COVER:
✅ Observability & Tracing: Using AWS X-Ray Sampling Rules to trace specific user transactions while ignoring background noise , and capturing client IPs in logs behind an ALB using X-Forwarded-For .
✅ Lambda Performance: Solving "Cold Start" latency issues for sensitive applications using Provisioned Concurrency and reducing deployment package sizes with Lambda Layers .
✅ Security & Encryption: Encrypting existing CloudWatch Log Groups and implementing Client-Side Encryption using the AWS Encryption SDK .
✅ API Development: Testing API integrations without a backend using API Gateway Mock Integrations and configuring custom domains with ACM certificates .


▶️ WATCH THE FULL 500-QUESTION PLAYLIST HERE: [   • AWS Certified Developer - Associate (DVA-C...  ]

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Question of the Day: In this video, we discuss Lambda Cold Starts. Have you ever used Provisioned Concurrency in a production environment, or do you rely on "warming" scripts? Let us know your strategy in the comments!

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