ACA CCP case studies
ACA CCP · Put your knowledge to work in context.
The ACA CCP (Alibaba Cloud Certified Associate – Cloud Computing Professional) is an associate-level credential for professionals who want to demonstrate foundational competence with Alibaba Cloud's platform. It suits cloud beginners, developers, system administrators, and pre-sales or operations staff who work with, or plan to work with, Alibaba Cloud services and need a structured, vendor-oriented baseline of knowledge. The ACA CCP case studies are 5 cases and about 2,521 words.
1Right-sizing an Auto Scaling group for a flash sale
A retail team runs a web tier on Alibaba Cloud behind a Server Load Balancer (SLB). During normal hours, 4 ECS instances (ecs.g6.xlarge, 4 vCPU / 16 GiB) handle about 35% average CPU.
576 words, about 3 min2Diagnosing intermittent 5xx errors after a VPC redesign
An engineering team hosts a three-tier app in a single Alibaba Cloud VPC: an SLB in vSwitch A (10.0.1.0/24), application ECS instances in vSwitch B (10.0.2.0/24), and an ApsaraDB for RDS instance in vSwitch C (10.0.3.0/24). After a redesign, users report intermittent HTTP 502/504 errors from the SLB, but only under load and only for some requests.
579 words, about 3 min3Choosing storage for a write-heavy logging pipeline
A team needs to store application logs from 200 ECS instances. Each instance writes about 50 GB per day, giving roughly 10 TB/day.
496 words, about 2 min4Multi-zone resilience for a payment service
A payment service runs on Alibaba Cloud in a single region. It uses an SLB, a set of ECS instances in one zone, and an ApsaraDB for RDS primary instance in the same zone.
433 words, about 2 min5Cost and performance tuning for a batch image-processing workload
A media company processes uploaded images in batches. Jobs arrive in bursts (up to 5,000 images at once), each image takes about 20 seconds of CPU, and results are stored in OSS.
437 words, about 2 min