Free Alibaba ACP-Cloud1 Exam Questions

Which of the following Alibaba Cloud products can provide Anti-DDoS service? (Choose two.) 

If users use Alibaba Cloud Anti-DDoS Basic service, when the attack traffic exceeds the service upper limit, the black hole policy will then be triggered; after that, the users’ servers can still provide services at a limited speed.

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. For a website consisting of static pages, they can use OSS to host these static pages. Meanwhile, using OSS in conjunction with ___________ product for acceleration purposes. 

What is the potential reason if the cache hit rate is low when using CDN?

In Auto Scaling, a scaling group refers to the collection of ECS instances deployed with the same applications, where these ECS instances can be charged by monthly subscription or Pay-As-You-Go. For scenarios with abrupt service traffic change, Pay-As-You-Go ECS instances can meet service requirements while minimizing cost. For monthly subscription ECS instances, you can manually add the idle instances to the scaling group to take full advantage of idle resources.