Which of the following cloud server resources can be automatically raised and lowered through elastic scaling?

hello friend, 

Currently, autoscaling supports automatic increase or decrease of bandwidth resources, automatic increase or decrease of the number of ECS instances in an AS group, but automatic increase or decrease of server CPU and memory configuration is not supported.

The answer is A. Thanks.

Hi ISD202220,

The answer is A Bandwidth

Hi, The answer is A,B,C

Bandwidth: Autoscaling supports automatic increase or decrease of bandwidth resources.
Memory: The memory resource scaling is done using Xen’s setMemoryTarget API.
CPU: Cloud Scale can resolve scaling conflicts between applications using migration, and integrates dynamic CPU voltage/frequency scaling to achieve energy savings with minimal effect on application SLOs.