HUAWEI CLOUD application performance management service completes application performance data collection by installing a collection agent on the node where the application is located. The collection agent is based on the industry's Pinpoint open source project and uses JM bytecode enhancement technology to collect application indicators in a non-intrusive manner.
What kind of technology stack does not support the application developed by APM?

• A.Tomcat
• B.C++
• C.JAVA
• D.Spring

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Microservice architecture will face multi-dimensional challenges. Which of the following are the challenges that microservice architecture needs to face? (Multiple Choice)

• A.Data is no longer centrally managed and distributed to various microservices. Conventional transaction management cannot cross service boundaries.
• B.It is easy to realize automated testing, with clear test cases, clear external dependencies, and easy piling (API pre-defined)
• C.You can choose components freely according to the needs of the service, and you don't have to worry about dependency conflicts. Microservices manage their own data.
• D.Increased failure probability, difficulty in monitoring and tracking, high calling frequency, long calling chain, and uncontrollable factors in cross-virtual machine and VLAN communication increase.

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Which of the following HUAWEI CLOUD OCR services can detect and identify multiple cards and bills in the same picture at one time?

• A.General form recognition
• B.Intelligent classification and recognition
• C.Network image recognition
• D.General text recognition

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Which of the following descriptions about the data warehouse is correct?

• A.Data warehouse is mainly used to support decision management
• B.The data source of the data warehouse is very single
• C.The data stored in the data warehouse is updated in real time
• D.Data warehouse is mainly used for online transactions

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The enterprise has purchased a fixed bandwidth product with a yearly subscription. Due to the increase in traffic of the Double Eleven service, the bandwidth needs to be temporarily upgraded for 3 days. Which of the following options is the most suitable solution?

• A.Purchase a bandwidth refueling package
• B.Directly adjust the bandwidth of the annual bandwidth product
• C.Purchase a shared data package
• D.Repurchase a large-bandwidth flexible public IP

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