You are responsible for the system operations of a product and have implemented the cloud infrastructure in the Alibaba Cloud platform. When business loads increase, _______ automatically adds ECS instances to ensure sufficient computing capabilities. When business loads decrease, the same service automatically removes ECS instances to save costs. Which service are you using?

• A.Server Load Balancer (SLB)
• B.Auto Scaling
• C.Resource Orchestration Service (ROS)
• D.Resource Access Management (RAM)

Comment: *

Name: *

Email: *

Verification: *

You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)

• A.The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retained based on the specified retry policy.
• B.Message Service provides synchronous notification to ensure the consistency between the message acknowledgment and event processing.
• C.Event Notifications can cross regions.
• D.The consumer type of the event notification message can be HTTP Server, Queue, or Topic.

Comment: *

Name: *

Email: *

Verification: *

Which of these services can be used to monitor Alibaba Cloud resources and send alerts? (Number of correct answers: 3)

• A.CloudMonitor
• B.ActionTrail
• C.Cloud Config
• D.Object Storage Service (OSS)

Comment: *

Name: *

Email: *

Verification: *

After you enable health checks of Server Load Balancer (SLB), when one backend ECS instance is declared as unhealthy, which of the following statements is correct?

• A.Requests are forwarded to other normal ECS instances and the unhealthy ECS instance is shutted down
• B.Requests are forwarded to other normal ECS instances. When the faulty ECS instance becomes normal, SLB forwards requests to the ECS instance again
• C.Requests are not forwarded to the ECS instances and you get back a 400 error
• D.Requests are not forwarded to the ECS instances and you get back a 500 error

Comment: *

Name: *

Email: *

Verification: *

Which database utility is suitable for managing databases in a centralized manner?

• A.DMS
• B.DBS
• C.DTS
• D.DAS

Comment: *

Name: *

Email: *

Verification: *