ACA-Cloud1 試験問題を無料オンラインアクセス

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the "Minimum number of instances" to 6 and "Maximum number of instances" to 8.
After correctly configuring scaling settings, the customer adds a scaling rule "Remove 5 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 8 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instances are left in the scaling group when the scheduled task is activated once?

• A.Five
• B.One
• C.Six
• D.Zero

You can retrieve data directly from an ECS Image and use it right away.

• A.TRUE
• B.FALSE

Which of the following scenarios is applicable to use RDS read-only instances?

• A.Reduces the write pressure on the RDS primary instance.
• B.Improves RDS storage capabilities.
• C.Implements data backtracking for the last two days.
• D.Reduces the read pressure on the RDS primary instance.

A large shopping mall deploys a new video surveillance system. The five-floor building in which the mall is located installed 35 HD cameras to monitor the major exits. The surveillance system is deployed on an ECS instance, which has four 2 TB data disks to store video data.
However, video data grows rapidly and the engineers find that the ECS will run out of storage space within 2 weeks.
In this case,product is thought to be the best solution for addressing the storage challenge while ensuring quick access to historical video data when needed.

• A.OSS
• B.Container Service
• C.CDN
• D.ECS

ECS is a highly flexible service. It can be used independently as a simple web server, or used with other Alibaba Cloud products, such as OSS and CDN, to provide advanced solutions. ECS can be used in applications such as:. (Choose four.)

• A.no limited online storage
• B.Databases
• C.large-traffic apps
• D.simple web applications
• E.Official corporate websites