Huawei Cloud's cloud leased line service can provide BGP connection. Which of the following descriptions about the related configuration and features of the cloud leased line is wrong?

• A.To ensure the security of BGP connections, MD5 parameters need to be configured.
• B.Huawei Cloud AS number is 64512.
• C.Huawei Cloud supports BGP load sharing.
• D.In the case of multi-link, BGP can realize automatic failover.

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When the user is using APM application performance monitoring. The APM probe needs to be installed. Which of the following descriptions about the APM probe is wrong?

• A.The APM probe is based on the industry's Pirgpolnt open source project, which is actually a JavaAgent
• B.APM probe collects application indicators non-invasively.
• C.APM probe currently only supports JAVA and PHP application types.
• D.The principle of the APM probe is to inject the necessary tracking code during class loading.

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Using HUAWEI CLOUD's dedicated cloud line, users can realize the interconnection and private network communication between the private network and the VPC. Which of the following scenarios can be interconnected through the cloud dedicated line? (Multiple choice)

• A.Under the same account, between two VPCs in the different Regions.
• B.Under different accounts, between two VPCs in the same Region.
• C.Under different accounts, between two VPCs in the different Regions.
• D.Under the same account, between two VPCs in the same Region.

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Loader not only supports importing data from outside the MRS cluster, but also supports exporting data from the MRS cluster to external systems.

• A.FALSE
• B.TRUE

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Which options are correct in the following description of PostgreSQL database? (Multiple choice)

• A.PostgreSQL does not support SQL operations JSON or XML.
• B.The transactional nature of PostgreSQL is close to that of Oracle database.
• C.PostgreSQL is an open source database.
• D.PostgreSQL does not support functional indexes.

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