Your website has high volume of traffic and sudden spikes for a very short time. In this scenario, can manage traffic peak efficiently and maintain a consistent user experience.

• A.Server Load Balancer
• B.Auto Scaling
• C.RDS
• D.VPC

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Server Load Balancer can manage sudden spikes in traffic, minimize response time and maintain 99.99% availability of your web application.

• A.TRUE
• B.FALSE

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SQL injection is a common application layer attack, usually through building special input parameters and pass it to web applications to steal or sabotage the application data. Which of the following is the target for SQL injection?

• A.Web application
• B.Database
• C.Confidential files on the server
• D.Pictures on server

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A company uses Alibaba Cloud SLB and Auto Scaling at the same time, hoping this combination can help save O&M cost and provide a stable and reliable system.
However, because they do not have relevant experience, the company's engineers listed some precautions based on their understanding, and turned the list to you for advice.
As an expert of Alibaba Cloud, you tell them only _______________ is correct.

• A.SLB instances must have Health Check enabled, or they cannot be used together with Auto Scaling
• B.All ECS instances under the same SLB instance must be running on the same operating system
• C.All backend servers under the same SLB instance must be in the same Scaling Group
• D.All backend servers under the same SLB instance must have the same configuration

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Which of the following statements to OSS bucket is not correct?

• A.Every user can create more than one bucket
• B.Bucket name can be changed after creation
• C.Every bucket should have a unique name
• D.There is no limitation to objects number inside one bucket

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