ACA-Cloud1 無料問題集「Alibaba Cloud ACA Cloud Computing Associate」

（A）FALSE

（B）TRUE

（A）Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.

（B）The instance and the scaling group can be in different regions and zones.

（C）The instance and the scaling group must be in the same region but not necessarily the same zone.

（D）The instance and the scaling group must be in the same region and zone.

（A）downgraded

（B）upgraded

（C）uploaded

（D）downloaded

（A）OSS leverages RAID0+1 configuration of its underlying physical hard disks. There is no impact even if
2 hard disks were to fail simultaneously.

（B）OSS supports 3 internal data copies, so the data can be manually recovered should there be any problem.

（C）OSS supports 3 internal data copies, no human intervention is required to recover the data when anything goes wrong.

（D）Customer has to safeguard their own data. OSS provides various backup interfaces to facilitate offsite backups.

（A）Configure Auto Scaling appropriately to automatically upgrade/downgrade the ECS instances.

（B）Manually create 30 ECS instances using the custom image, and then add them to SLB every night before 20:00 and remove them after 02:00.

（C）Create 30 ECS instances based on the custom image and add them to SLB. Then, configure weights for these ECS instances to respond to user requests every night from 20:00 to 02:00, and reset those weights to zero for other periods of time.

（D）Configure Auto Scaling appropriately to automatically add or reduce ECS instances.

（A）If you are using OSS to store some log files which are continuously being updated, you better choose streaming method to be able to append to one existing object instead of overwriting.

（B）All file uploading method provided by Alibaba Cloud OSS service will support resuming from break point.

（C）If you need to upload very large file you better use multi-part uploading to get the capability of resuming from break point.

（D）If you are uploading some small files (<1m), you can choose using put method to be able finish uploading in one http request.

（A）OSS

（B）Auto Scaling

（C）RDS

（D）Server Load Balancer

（A）Alibaba Cloud Product Operation Training

（B）Event Management Service

（C）Aftersales Support

（D）Alibaba Cloud Architecture Design Training