弹性伸缩包含了scale out/in scale up/down四种方式。其中 out/in是指网元内虚拟机数量的增减 up/down是指网元虚拟机()的变化。

（3）音阶（Scale）

【33】A．rulerB．parameterC．scaleD．variable

This was disaster on a cosmic scale.

This was disaster on a cosmic scale.

This was disaster on a cosmic scale.

弹性伸缩服务(Auto Scaling CT-AS)是根据用户的业务需求 通过策略自动调整其__资源的管理服务()