AWS · SAA-C03
Caching, edge, and read replicas
SAA-C03 · Lesson 10 of 23 · 1:21:08
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In this lesson
Prepare for the SAA-C03 exam (AWS Certified Solutions Architect – Associate). In this lesson: caching strategies with lazy loading, write-through, and TTLs, Amazon ElastiCache and DAX, Amazon CloudFront with origin access control, signed URLs, and origin failover, AWS Global Accelerator, and read replicas. Includes three original practice questions.
Preview the topics
- The tracking API reads each parcel’s status from DynamoDB thousands of times per second, and the team needs microsecond reads, without changing its data model. What should the architect add?
- Customers around the world download parcel photos stored in a private S3 bucket, and the bucket must not become public. What should the architect use?
- A reporting dashboard runs heavy queries against the primary Amazon RDS for PostgreSQL database, and slows down the writes of the tracking application. What should the architect do?