HDFS as a distributed file system has many use scenarios. The following descriptions of HDFS usage scenarios -- which of the following items are correct? (Choose three)
A. Supports concurrent writingIn HUAWEI CLOUD APM, latency is the time from request initiation to response.
Overall latency of a service call = total time spent on the entire request for that service.
Service latency = overall latency minus the time spent calling other instrumented downstream services.
There are services A, B, C. A calls B twice (B1, B2), and B calls C once. Which of the following descriptions of each service's latency are correct? (Choose two)

An enterprise that has purchased an annual fixed-bandwidth product needs to temporarily upgrade its bandwidth due to traffic growth during the Double 11 shopping festival for 3 days. Which of the following options is the most appropriate solution?
A. Directly adjust the bandwidth size of the subscription product.When analyzing and obtaining performance indicators based on stress testing, customers usually set thresholds for basic resource performance monitoring data. The maximum threshold for CPU usage load is <85%, the maximum threshold for memory usage load is <85%, and the I/O read and write utilization is <80%.
A. TRUEXiao Li, as the company's operations and maintenance personnel, needs to enhance database data security. Xiao Li plans to use OMS to add IDC to MySQL and synchronize the database data in real time to ApsaraDB for RDS to achieve MySQL database disaster recovery.
A. TRUEA taxi app has petabyte-level vehicle, user, road, and other information. The user needs to provide millisecond-level detailed data queries when taking a taxi, and traditional row-based databases have great limitations in this regard. Which of the following components can help the company solve the above problem?
A. KafkaIn order to achieve the requirements of rapid elastic scaling, it is generally recommended to deploy game services using bare metal + virtualization + containerization.
A. TRUEA news category of an information platform app currently serves hundreds of millions of users daily, publishes millions of posts per day (including text, images, and videos), and generates about 4 billion daily views.
As the business scale expands, the original services - deployed on HUAWEI CLOUD ECS - are managed using numerous scripts and software packages. Because of the large variety and quantity of services, onboarding workloads are heavy, expansion speed is slow, and OandM pressure grows exponentially, seriously affecting business development.
Assuming you are a HUAWEI CLOUD OandM expert, which of the following strategies would you recommend to completely address the customer's pain points? (Choose two)
A. Recommend configuring additional bandwidth for ECS instances to handle sudden traffic surges.The FPGA Acceleration Cloud Server provides tools and environments for FPGA development and deployment, allowing users to easily develop FPGA-based accelerators and deploy acceleration services. Which of the following scenarios are suitable for using FPGA-accelerated cloud servers? (Choose three)
A. 3D somatosensory games or other scenarios requiring a large amount of graphics rendering.In view of the requirements of individual users to build simple web website applications, it is recommended that they use the architecture of microservices for the construction and development of services to achieve the purpose of improving productivity and controlling costs.
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