Compared with the self-built database, which of the following is not an advantage of RDS?

• A.Elastic scaling
• B.Ready to use
• C.Users self-install the database
• D.convenient management

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Which of the following functions does RDS provide?

• A.BA diagnosis and diagnosis opinions, You can maximize the discovery of existing or potential health problems in the database, And deal with it in time
• B.Cloud DBA can help you conduct a comprehensive analysis of the instance, Centralized reflection of the performance and operating status of the database instance. Via Cloud D
• C.Users can create and delete database instances, Modify the database port number
• D.Users can set automatic backup strategies and create manual backups, And use the backup to restore the database instance
• E.Users can set alarm rules for relational database

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A file system can be mounted on multiple cloud servers at the same time.

• A.False
• B.True

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Which of the following is not a basic concept of elastic load balancing?

• A.Instance (VM or application container)
• B.Listener
• C.Firewall
• D.LoadBalancer load balancer

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Which of the following is wrong in the description of VPN?

• A.VPCInternal VPNs and self-built VPNs need to ensure the IKE policyas well asIPsec and policy configuration are consistent
• B.Currently supports point-to-point VPN(Site-to-site VPN)And point-to-multipoint VPN (Hub=SpokeVPN)
• C.VPCinsideVPN and self-built VPN, IKE policy and IPsec policy configuration only need to keep one policy consistent
• D.In addition to building a VPN in a VPC, You also need to build a VPN in your own data center

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