Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding existing ECS instances into the scaling group, whose status however must be________.

• A.Created
• B.Preparing
• C.Stopped
• D.Running

Comment: *

Name: *

Email: *

Verification: *

Alibaba Cloud provides powerful security services (the same level of security services used to support Alibaba Group double 11 shopping festival). However, you have to pay first before using any of the security services.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types? (Choose three.)

• A.MySQL
• B.SQL Server
• C.PostgreSQL
• D.Oracle database

Comment: *

Name: *

Email: *

Verification: *

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling?
(Choose three.)

• A.When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.
• B.You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.
• C.You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.
• D.You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.

Comment: *

Name: *

Email: *

Verification: *

You are developing a highly available web application using stateless web servers. Which services are suitable for the application? (Choose three.)

• A.RDS
• B.SLB
• C.ECS
• D.MaxCompute
• E.OSS

Comment: *

Name: *

Email: *

Verification: *