Alibaba ACP-Cloud1 Exam Practice Questions (P. 2)

Alibaba Cloud SLB can help distribute traffic among multiple backend servers. Which of the following statements is correct about backend servers?

Alibaba Cloud SLB provides certificate upload and management service. You can bind the required certificate when creating a Listener. When using ___________ protocol, is a certificate mandatory?

When using Alibaba Cloud SLB, a user configures the Health Check as follows: response time out value set to 5 seconds, Health Check interval set to 2 seconds, unhealthy threshold value set to 3, and healthy threshold value set to 3. That is to say, to confirm a backend ECS instance is healthy, three successive normal responses are required.
If the current status of a backend ECS instance is unhealthy, and you finish the repair work immediately. It will take at least _______________ for SLB Health Check to confirm this instance is healthy again.

An entrepreneur team builds a network disk application based on Alibaba Cloud Products. This application allows users to upload and download files online. Currently, all the files are stored on the data disks of ECS instances. As the service volume increases, the number of ECS instances and overall O&M costs soar. To reduce O&M costs, using the ______________ product in conjunction with ECS instances provides an ideal solution.

In traditional IT scenarios, it is very difficult to achieve 99.99999999% data reliability for massive data storage and avoid SPOF at the same time. In Alibaba Cloud, the ________________ service supports the features described above.