SLB is a load balancing service that distributes traffic to multiple cloud servers It provides a wide range of functions to meet the needs of various business scenarios If a user wants to use SLB and ECS instances to deploy two-way authenticated HTTPS websites, the following statement is correct_______.

• A.SLB can only host SSL certificates, not CA certificates.
• B.SLB can only host CA certificates, not SSL certificate
• C.You need to host server SSL certificates and client CA certificates on SLB
• D.SLB can only support HTTPS one-way authentication

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A new media company uses a mobile app to provide news and information services. They utilize Auto Scaling to add/reduce ECS instances dynamically to address service traffic spikes.
Based on the estimation of their service and technical personnel the company thinks they require 10 ECS instances during idle hours and 10 to 20 ECS instances (dynamically adjusted) during some busy hours, which are normally from 07:30 to 09:00 and from 18:30 to 20:00 In the scaling group; they set the "Minimum number of instances" to 10 and "Maximum number of instances" to 20.
To simplify deployment tasks and save costs, which of the following scaling modes should they choose?

• A.Healthy mode
• B.Scheduled mode
• C.Fixed quantity mode
• D.Event-triggered mode

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Which of the following statements about an OSS bucket is NOT correct?

• A.Every user can create more than one bucket.
• B.The bucket name can be changed after creation.
• C.Every bucket must have a unique name.
• D.There is no limitation on the number of objects inside a bucket.

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Which of the following scenarios can be done using Alibaba Cloud Express Connection? (Number of correct answers: 2)

• A.Intranet communication between a VPC and servers in an external IDC
• B.Intranet communication between two VPCs under the same account in the same region
• C.Intranet communication between VPCs and Smart Access Gateway in customers different branch offices
• D.Intranet communication between two VPCs in different accounts and different CIDR Blocks

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The backend server pool of an Alibaba Cloud SLB contains multiple ECS instances, which may have different service capacities. To exploit the different service capacities of backend ECS instances, which of the following statements is correct?

• A.Choose Weighted Round Robin mode to set higher weights to ECS instances with higher capacities The higher the weight of the backend ECS instance the higher chance that the instance will receive requests.
• B.SLB cannot assign more requests to certain ECS instances.
• C.Choose Round-Robin model and ECS instances with higher capacities will surely be assigned with more requests.
• D.Choose Weighted Least-Connection mode, and ECS instances with higher capacities will surely be assigned with more requests.

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