Which of the following main modules about the basic structure of the HPC system does not have application scenarios specificity?

• A.Middleware
• B.Operating system
• C.Job management
• D.Development tools

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Which of the following PCIe PIN bus numbers is 64?

• A.1X
• B.16X
• C.8X
• D.4X

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Which of the following is the wrong about the understanding of the database cluster model?

• A.Database clusters include two models: synchronous clusters and heterogeneous clusters.
• B.Asynchronous database. After the database client sends a data update request, the node that accepts the request will immediately return the result to the client. The updated data will be replicated and transmitted to other nodes in the cluster at a later time.
• C.After synchronizing the database, the database client sends a data update request. The node that accepts the request will copy and transmit the updated data to other nodes in the cluster while returning the results to the client.
• D.The two key points of a database cluster are: 1. It has two or more database server clusters. 2. It can provide transparent services.

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The operation and maintenance personnel of H company received feedback from users that the company's Web server responded slowly. The system administrator uses the ss command to check that the server has a large number of FIN-WAIT status links. At this time, which of the following parameters should be modified?

• A.net.ipv4.tcp.fin_timeout
• B.net.ipv4.tcp.tw_reuse
• C.net.ipv4.tcp.keepalivetime
• D.net.ipv4.ip.local_portrange

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Which of the following processor models belong to the Intel X86 architecture? (Multiple choice)

• A.8088
• B.AMD Opteron
• C.Pentium
• D.Xeon

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