AWS · SAA-C03
Scaling and load balancing
SAA-C03 · Lesson 8 of 23 · 1:04:58
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In this lesson
Prepare for the SAA-C03 exam (AWS Certified Solutions Architect – Associate). In this lesson: horizontal and vertical scaling and stateless design, Application, Network, and Gateway Load Balancers, EC2 Auto Scaling with target tracking, step, scheduled, and predictive scaling, multi-tier architectures, and choosing a scaling strategy. Includes three original practice questions.
Preview the topics
- Warehouse scanners send millions of small TCP messages per second, and the partners’ firewalls only allow a fixed list of IP addresses. Which load balancer fits?
- Traffic triples every weekday between 8 and 10 AM, and new instances take ten minutes to be ready. What should the architect add, so that capacity is there before the peak?
- Workers read parcel events from an SQS queue, and the backlog reaches hundreds of thousands of messages while CPU stays low. Which metric should drive the workers’ Auto Scaling group?