Which of the following statements about computer systems is wrong?
- A . Computer systems are built on the underlying hardware. Common server types include tower, blade, rack, etc.
- B . Computer software can be divided into system software at the bottom layer, application software at the top layer, and middleware between the two.
- C . Minicomputers and mainframes use the "host-terminal" mode of operation
- D . The common X86 architecture server originated from mainframes and belongs to CISC complex instructions (X86 did not originate from mainframes)
In the RoCE scenario, the acceleration component that uses the dynamic congestion control algorithm is ()
- A . IN series smart network card
- B . FPGA Acceleration Components
- C . SSD acceleration components
Which of the following processes must be included in a standard hyper-converged architecture delivery solution? (Multiple choice)
- A . Distributed storage system writes data: Generate multiple keys in units of 1MB based on the LBA and block size of the application layer, hash the key into a partition ID, and then find the primary OSD based on the partition ID. The primary OSD notifies the backup OSD corresponding to the partition to write data.
- B . Planning and Design
- C . Project supervision
- D . Installation and commissioning
- E . Project Acceptance
Huawei Atlas 800 deep learning system lowers the technical threshold for using AI, allowing customers to focus more on the business itself and enabling AI business to be quickly developed and launched. Which of the following deep learning frameworks is not currently supported?
- A . MXNel
- B . Keras
- C . PyTorch
- D . Tensorflow
An Internet company purchased a batch of TaiShan servers to build a Web system.
It is now planned to provide web front-end load balancing function. Which of the following software can provide web front-end load balancing function? (Multiple choice)
- A . Memcached (caching component)
- B . Nginx
- C . HAProxy
- D . LVS
Which of the following statements about DBN nodes in Huawei’s hyper-converged database scenario is wrong?
- A . Fusionsorage uses a fusion deployment mode. DBN nodes run VBS, MDC and OSD
- B . The underlying operating system of the DBN node is a standard Linux system that is directly deployed on the physical server
- C . Support Oracle DB, Microsoft SL Server, IBM DB2, SAP Sybase and other database software
Which of the following statements about data routing and cluster management in Huawei’s Fusionstorage architecture is correct? (Multiple choice)
- A . When the system starts, the MDC interacts with ZK to determine the MC, and the main MDC and other MDCs monitor each other’s heartbeats. The main MDC decides who will take over after a certain MDC fails. Other MDCs find that the main MDC fails and interact with ZK to take over the main MDC.
- B . When VBS starts, it queries the primary MDC and registers with it (the primary MDC maintains an active VBS list, which it synchronizes to other MDCs, notifies VBS of OSD status changes, and asks MDC to confirm whether it is the leader)
- C . Distributed storage system writes data. VBS generates multiple keys in units of 1MB based on the LBA and block size from the application layer, hashes the keys into partition IDs, and then follows up the partition to find the primary OSD. The primary OSD notifies the OSD corresponding to the partition to start writing data.
- D . When creating a distributed storage system, N partitions are generated in the space of 2 to the power of 32, and the backup OSD corresponding to the partition is generated according to the distribution of the disk to start writing data
- E . When OSD starts, it queries MDC and reports the status to the affiliated MDC, which sends the status change to VBS. When the affiliated MDC fails, the active MDC designates an MDC to take over, and a maximum of two pools belong to one MDC.
Which of the following is not a typical configuration of Huawei’s hyper-converged database scenario?
- A . Computing: X6800
Storage: RH2288V3 server + FusionStorage software
Network: E9000 in-frame switch + CE5885 - B . Calculation: 1288H V5/2288H V5/2488H V5
Storage: 2288HV5 server FusionStorage software
Network: External B switch + CE5855 - C . Calculation: RH5885H V3/RH2288H V3
Storage: RH2288V3 server + Fusionstorage software
Network: External B switch + CE555 - D . Calculation: E9000
Storage: E9000 storage blade + FusionStorage software
Network: E9000 in-frame switch
An Internet company purchased a batch of TaiShan servers to build a Web system and is now using httpress to test its performance. Which of the following statements about the httpress Cn 10000 Cc 100 -t 4 Ck http://localhost:8080/index.html test command is correct?
- A . There are 10,000 threads in the test
- B . There are 100 concurrent users in the test
- C . This test is a short connection test
- D . There are 4 requests in the test
Which of the following statements about Huawei’s hyper-converged architecture is correct? (Multiple choice)
- A . Huawei’s hyper-converged architecture mainly uses FusionStorage distributed storage software
- B . Huawei’s hyper-converged architecture can realize disaster recovery and backup functions
- C . Huawei’s hyper-converged architecture hardware platform mainly uses FusionServer pro or Taishan server (Taishan is currently being promoted)
- D . The virtual platform in Huawei’s hyper-converged architecture can use FusionSphere virtualization software or VMware or Hyper-V virtualization software (Hyper-V virtualization software is not supported)
Which of the following statements about SDS software-defined storage versus traditional storage in terms of storage management is correct?
- A . SDS LUN configuration is complex and difficult to modify.
- B . The external management interface of traditional storage is more automated and standardized
- C . SDS mainly refers to SAN storage products, which are complex to manage.
- D . The management unit of SDS has been changed from the original traditional storage RAID group and LUN group to the application virtual machine
Company A purchased Huawei TaiShan servers and wanted to migrate a software originally running on the X86 server Windows system to the new Kunpeng platform. Which of the following statements is wrong?
- A . Kunpeng platform does not support Windows software so it cannot be ported
- B . Recompile to run on the new Kunpeng platform
- C . Consider X86+ARM hybrid deployment solution
- D . Consider using software with similar functions under Linux as an alternative transplant
ASIC is a new type of chip after general-purpose chips such as CPU and GPU. Which of the following understandings of ASIC chips is wrong?
- A . The biggest advantage of ASIC chips is that the algorithm can be modified according to customer requirements to adapt to business needs during the use of the chip (the algorithm is fixed and may not be used once modified)
- B . ASIC refers to an integrated circuit designed and manufactured for specific user requirements and specific electronic system needs.
- C . Compared with general integrated circuits, ASC has the advantages of smaller size and lower power consumption.
- D . The current mainstream ASIC manufacturers include Huawei, Google, Cambrian, etc.
Which of the following statements about typical scenarios of offline analysis and data mining is wrong?
- A . Configure balanced SATA hard disk
- B . Configure large memory
- C . Configure mid-range CPU
- D . This scenario is generally a warm data configuration. Data reliability generally uses three-copy technology or 1.5-copy EC (erasure code) configuration.
Huawei’s traffic video violation analysis solution uses Atlas 500 as an edge node, and multiple edge nodes converge to the Atlas800 AI all-in-one machine. Which of the following is not the function of Atlas800?
- A . Query and data reporting
- B . Centralized Management
- C . Illegal storage
- D . Model Training
Although Hyper-Threading technology can execute two threads simultaneously, it is not like two real CPUs where each CPU has independent resources. Therefore, the performance of Hyper-Threading is not equal to the performance of two CPUs.
- A . True
- B . False
Which of the following tuning strategies are suitable for Nginx physical servers as Web Servers? (Multiple choice)
- A . Increase the buffer size to avoid a large number of new connections causing buffer overflow and the inability to establish connections.
- B . Reduce the number of TIME WAIT connections to avoid too many TIME WAIT connections occupying network resources and causing shortage of new connection resources
- C . Increase the range of available ports to avoid performance degradation caused by new connections constantly searching for available ports when a large number of connections occupy ports.
- D . Set the maximum number of open files to 1024 to limit Nginx resource overhead
Engineer A discovered during a performance test that process P (PD 12345) was constantly migrating on an 8-core processor. To improve the running efficiency of process P, A decided to bind process P to CPU1 and CPU2. Which of the following can be bound? (Multiple choice)
- A . taskset -pc 1-2 12345
- B . taskset -p 6 12345
- C . numactl –cpubind=0, 1 –membind=0, 1P
- D . numactl –cpubind=1, 2 –membind=1
System administrator A wants to use the vmstat command to view the active memory and inactive memory of EulerOS. Which of the following commands can achieve this goal?
- A . vmstat -a
- B . vmstat -f
- C . vmstat -s
- D . vmstat -d
Process P (PID 12345) runs on a two-node NUMA system. In order to improve the running efficiency of the process, Engineer A decides to bind process P to the first NUMA node. Which of the following configurations can achieve binding?
- A . numactl Ccpubind=0 P
- B . taskset -p 1 1234
- C . numactl Ccpubind=1 P
- D . taskset –pc 0 12345
Elasticsearch is a search engine based on Lucene. It provides a distributed, multi-tenant full-text search engine. What tuning methods can be used when deploying Elasticsearch using TaiShan server? (Multiple choice)
- A . Turn off transparent large pages
- B . Balanced Memory Insertion
- C . Enable irbalance
- D . Disable the use of swap memory
Redis is a completely open source, free, BSD-compliant, high-performance key-value database. Which of the following configurations has no obvious effect on optimizing Redis?
- A . NIC NUMA binding core
- B . Configure the network card offload function
- C . Configure NIC interrupt coalescing
- D . Enable transparent huge pages
A process of an interactive application of Company H has a high response delay problem. Engineer A found that the values of the si and so columns are high through the vmstat command. At the same time, the Dirty statistic in /proc/meminfo is high. Which of the following settings should be executed at this time? (Multiple choice)
- A . vm.swapiness=0
- B . vm.swampiness=100
- C . vm.dirty.backgrounD. radio=20
- D . vm.dirty.backgrounD. radio=5
Which of the following statements about the FusionDirector software management version function is wrong?
- A . Automatically download and detect the firmware, driver and OS versions of different server models, and comprehensively manage firmware versions
- B . Version management
- C . Independent out-of-band channel upgrade does not occupy business bandwidth
- D . Operation and maintenance engineers need to manually download, upload, and upgrade firmware through the platform
A TaiShan server running a Web service accepts many requests at the same time. In order to reuse TIME-WAIT sockets and improve processing capacity, what configuration needs to be done? (Multiple choice)
- A . net.ipv4.tcp_tw_reuse=1
- B . net.ipv4.tcp_keepalibed_time=1800
- C . net.ipv4.tcp_tw_recycle=1
- D . net.ipv4.tcp_fin_timeout=10
Smart NIC uses LDPC error correction algorithm to achieve high data reliability.
- A . True
- B . False
Which of the following statements about FPGA advantages is correct? (Multiple choice)
- A . Suitable for deep customization and can be quickly launched
- B . Applicable to graphics and video processing
- C . Suitable for irregular parallel computing, good real-time performance, high energy efficiency
- D . General-purpose processor, shortest development cycle
Which of the following is not an application of ASIC?
- A . 2008 Beijing Olympic Games LED scroll control system
- B . AlphaGo system
- C . CNN structure reasoning prediction
- D . Atlas 500 Smart Station
Company A purchased a batch of TaiShan servers to expand the existing distributed storage Ceph. Which of the following are the main steps to install and deploy the file storage service? (Multiple choice)
- A . Create a storage pool
- B . The client mounts the file system
- C . Configure the mds node
- D . Create a file system
Atlas computer vision solution can cope with the maintenance pressure of public areas such as residential areas and parks. Which of the following is not a safety hazard brought by urban public spaces?
- A . Although employees, tenants, visitors, strangers and suspicious persons are monitored by traditional video surveillance, traditional surveillance often cannot be traced back to the actual event.
- B . Crowded areas with high concentrations of people may easily lead to safety accidents
- C . Cards used for identification cannot guarantee authentication consistency
- D . Lack of obvious guidance and restrictions for outsiders
Company A purchased a batch of Taishan servers to build a Web system. Which of the following software can provide Web server functions? (Multiple choice)
- A . LVS
- B . Memcached
- C . Apache
- D . Nginx
With the booming development of cloud computing, people’s flexible demand for mobile devices has promoted the development of cloud phones, providing a unified base for the cloudification of mobile applications. Which of the following does not belong to the business type of Huawei TaiShan Native?
- A . Hosting
- B . Office Type
- C . Game type
- D . Independent
An Internet company purchased a batch of TaiShan servers to expand the original distributed storage Ceph. Which of the following are the main steps for installing and deploying block storage services? (Multiple choices)
- A . Mapping block device images
- B . Create a block device
- C . Create a file system
- D . Create a storage pool
Regarding the use of hyper-converged architecture to build a private cloud solution, which of the following statements is wrong?
- A . The physical devices including traditional servers, storage, and network devices are integrated into a logical architecture, providing a simplified unified maintenance and management interface.
- B . Private cloud hyper-convergence architecture can use X86 architecture servers or servers similar to Huawei Kunpeng architecture to carry computing, storage and other node functions.
- C . By redesigning the data center as a transmission system for software and business, the management of the data center is simplified. This architecture is that the storage device and memory are connected to the same processor network.
Company D purchased a batch of TaiShan servers to expand the original distributed storage. Which of the following servers provides a RESTful object storage interface to customers based on Librados?
- A . RBD
- B . CephFS
- C . Librados
- D . RADOSGW
A project purchased a batch of TaiShan servers to expand the original distributed storage Ceph. Which of the following are the main steps for installing and deploying the object storage service? (Multiple choices)
- A . Create a rgw account
- B . Create a storage pool
- C . Create a file system
- D . Create a rgw instance
TaiShan server accelerator engine can be applied to which of the following scenarios? (Multiple choices)
- A . Smart Security
- B . Big Data
- C . Web Services
- D . Data encryption
A company is planning to port C language from X86 platform to Kunpeng platform, which involves gcc compilation. Which of the following are part of the gcc compilation process? (Multiple choices)
- A . Compilation
- B . Compilation
- C . Preprocessing
- D . Links
When engineers deliver a hyper-converged virtualization scenario built with Huawei E9000 blade servers, they need to use CX310 or CX320 switch boards, through basic frame cascading, without external switches. A maximum of 4 frames are supported between frames. Two switch boards in the frame are stacked through 40G interfaces.
- A . True
- B . False
Which of the following options is not a shortcoming of traditional computing solutions?
- A . Poor flexibility
- B . Poor scalability
- C . High operation and maintenance costs
- D . Easy deployment
Which of the following is not a component of the CPU processor?
- A . Process
- B . Register
- C . Control Unit
- D . Logic Operation Unit
ARM64 processors almost monopolize the mobile market server CPU, and gradually align with X86 in terms of functions, performance and ecology. Cloud computing of X86 business, multi-concurrency/horizontal expansion of data center applications for green computing, and de-X86ization of some regional markets bring ARM opportunities to change the market structure.
- A . True
- B . False
Huawei Atlas800 deep learning system. Lowers the technical threshold for using AI. Allows customers to focus more on the business itself, and enables AI business to be developed and launched quickly. Which of the following devices can be used for its computing nodes?
- A . 2288H V5
- B . FusionServer G5500
- C . Atlas500
- D . FusionServer G2500
An Internet company purchased a batch of TaiShan servers to build a Web system. The typical data flow of the entire Web system planning is: Client initiates request -> Load balancing performs data forwarding -> Application data provides data services -> Backend storage database server
- A . True
- B . False
An Internet company purchased a batch of TaiShan servers to expand the capacity of the previously built distributed storage Ceph resource pool. In order to ensure data consistency. OSD will compare the metadata of each object copy located in different OSDs in the placement group. If you need to capture OSD defects and file system errors, you can perform cleaning operations.
- A . True
- B . False
Which of the following statements about SDS software-defined storage and traditional storage in terms of storage system software is wrong?
- A . The storage software architecture of SDS needs to be involved from top to bottom, APP-vDisks-Container Storage Pool-HDD
- B . The storage software architecture of SDS manages storage based on applications. Applications first need to create their own storage policies, that is, the storage requirements of the application, and then add storage bodies (such as vDisks) to the storage policies. The collection of all user storage entities (vDisks) in a policy is called a Storage Pool.
- C . Traditional storage is mostly a bottom-up design model, HDD->DISKGroup->RAID->Storage Pool->LUN
- D . In traditional storage system design, LUN is the basic unit of storage management. Before users create LUNs, the storage has already been defined by the manufacturer or administrator and has always existed in the storage system. For user LUNs, users can only define very limited things.
A project purchased a batch of TaiShan servers to build a Web system. Nginx was used to achieve load balancing. Which statement about load balancing is correct?
- A . Data services with high concurrent business processing capabilities
- B . Provide HTTPS access and SSL offload data forwarding
- C . Initiate data request
- D . Large capacity, high reliability and high performance data storage
The Public Security Bureau of County A needs to build a video image analysis platform. Huawei’s full-target structured solution is used, requiring a single machine to support 1,200 channels of face close-up image structured tasks. Please give which of the following optional server selection plan? (Multiple choice)
- A . Atlas 800 3010 1 piece of Atlas300
- B . Atlas 800 3010 16 pieces of Atlas300
- C . Atlas 800 3010 8 pieces of Atlas300
- D . Atlas 800 3010 2 pieces of Atlas300
Which of the following statements about Huawei’s hyper-converged management eService docking and Plugin docking features is correct?
- A . Huawei Service Support Center supports drop-down selection (4) and manual entry (@Huawei.com email address). The email server provided by the customer and Huawei’s email address can communicate with each other.
- B . Huawei’s hyper-converged management and eService docking only support sending alarms to the GTAC center (eService cloud) and remote log collection, but does not support remote health checks, etc.
- C . Customers can monitor and manage Huawei’s hyper-converged system through vCenter server to achieve unified management and operation of the system on the vCenter interface. Only one HCI system is supported for access.
- D . vCenter Plugin provides monitoring and management of the hardware and storage device resources of Huawei HCI system, and system alarm reporting, but does not support the creation of management volume devices and virtual machine snapshots.
Huawei Kunpeng full-stack cloud solution includes four levels from bottom to top: physical infrastructure, resource pool, cloud service, and operation management platform. In the ECS elastic cloud host service, which of the following is a feature that the ECS ARM virtual machine cannot support?
- A . Offline adjustment of virtual devices (CPU, memory, network card, disk)
- B . In-band and out-of-band information query
- C . GPU pass-through
- D . CPU, memory, and interrupt hardware-assisted virtualization