An enterprise has deployed multiple applications, such as desktop cloud, database, video on demand (VoD), and backup. These applications occupy a large amount of storage resources. The enterprise plans to use the deduplication and compression features. Which of the following configurations are recommended?
ADeduplication and compression are not recommended for VOD scenarios because video files have been compressed by application software and re-compression will be inefficient.
BDeduplication is recommended for desktop cloud scenarios because there is a large amount of duplicate data among multiple virtual images.
CCompression is recommended for database-scenarios because a large amount of data needs to be stored.
DDeduplication is not recommended for backup scenarios because all backup data must be retained.
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存储系统运维与故障处理
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存储产品技术与应用
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存储产品技术与应用
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存储产品技术与应用
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A service host is connected to a storage device through Fibre Channel SAN. However, the service host cannot detect mapped LUNs after scanning. Which of the following are possible causes?
AThe Fibre Channel module on the service host is faulty.
BNo multipathing software is installed on the service host.
CZones are incorrectly configured.
DThe storage network is blocked by the firewall.
Which of the following is not supported by HyperMetro?
AData zero copy
BFastWrite
CMemory ballooning
DOptimized cross-site access
SmartCache can support both SAN and NAS services.
ATrue
BFalse
In Huawei distributed storage systems, the asynchronous remote replication architecture of the block service establishes an asynchronous remote replication relationship based on a block service cluster. This architecture also synchronizes data between primary and secondary volumes based on differential data. All the data generated on the primary volume after the last synchronization will be written to the secondary volume in the next synchronization.
ATrue
BFalse
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存储产品技术与应用
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Question 7
存储产品部署
Question 8
存储系统运维与故障处理
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存储产品技术与应用
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存储产品技术与应用
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存储产品技术与应用
Question 12
存储产品技术与应用
Question 13
存储产品部署
Question 14
存储产品技术与应用
Question 15
存储产品技术与应用
Question 16
存储系统运维与故障处理
Question 17
存储系统运维与故障处理
Question 18
存储产品技术与应用
Question 19
存储产品技术与应用
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存储产品技术与应用
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存储系统运维与故障处理
Question 22
存储产品部署
Question 23
存储系统性能调优
Question 24
存储产品技术与应用
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Which of the following statements about the versioning for buckets are correct?
AYou can check whether the versioning is enabled by viewing its state.
BYou can use versioning to save, query, and restore objects of different versions.
CThe versioning state can be configured and queried.
DVersioning cannot be used to retain and archive data.
The data, logs, and change records of a medium- or large-size database are stored in LUN 1, LUN 2, and LUN 3, respectively. Remote replication tasks 1, 2, and 3 are created and the replication pairs are added to a consistency group. Which of the following statements are true?
AThe three remote replication pairs can be added to a consistency group only on the primary storage system, and their secondary LUNs must be on the same remote storage system.
BIf remote replication task 2 is abnormal during data synchronization, remote replication tasks 1 and 3 are stopped immediately.
CIf remote replication task 2 is abnormal during data synchronization, remote replication tasks 1 and 3 are not stopped. After the fault is rectified, remote replication task 2 continues.
DIn the event of a disaster, data can be restored from the secondary storage system to ensure availability of the database.
A company deploys a Huawei distributed storage system to build a new online transaction system. The company deploys database application software of the transaction system on virtual machines (VMs). Multiple data volumes are mounted to VM. What are the best methods to ensure data restoration reliability?
AAll volume snapshots must be created at the same time.
BA snapshot and a consistency snapshot comply with the dependency consistency principle.
CMultiple data volumes used by the database do not have to use the consistency snapshot.
DDifferent data volumes need to be restored in sequence.
A live gaming platform uses the FlashLink multi-core technology of Huawei OceanStor all-flash storage for its services. Which of the following describes core grouping in CPUs?
AA request is processed by one core until its completion. Cores are lock-free to avoid frequent switchovers among the cores.
BRead/write I/Os are deployed in different core groups from other types of I/Os to avoid mutual interference.
CThe controller works with SSDs to identify hot and cold data in the system, improve garbage collection efficiency, and prolong the service life of SSDs.
DvNodes are bound to CPUs to reduce the overheads for scheduling and transmission across CPUs.
Which of the following statements about InfoStamper are correct?
AIf file data in a source directory encounters non-physical damage such as incorrect deletion, overwriting, or virus attack, you can restore the data by accessing the file in the snapshot directory generated before the fault.
BAfter a remote application task starts, snapshots are created at a preset interval. Then the incremental data at the snapshot point in time is replicated to the secondary directory.
CThe antivirus server reads files from snapshots for virus scanning, removal, and isolation.
DSnapshots prevent data loss caused by consecutive faults and tolerate faults of sub-healthy disks.
Compared with traditional RAID algorithms, the erasure code redundancy technology provides higher reliability and more flexible redundancy policies. Which of the following statements about the working principle of erasure code is false?
AData to be written is divided into N data blocks of the same size.
BThe erasure code algorithm calculates M parity blocks for every N consecutive data blocks. (The value of N is smaller than that of M.)
CN+M data blocks are concurrently stored to different nodes.
DIn erasure code storage mode, a concurrent failure of M-1 disks is tolerated at most.
Which of the following statements about Huawei OceanStor 6800 V5 Kunpeng are correct?
AIt uses Huawei-developed Kunpeng CPUs.
BThe back-end disk enclosure supports SAS 3.0 ports.
CThe back-end disk enclosure supports high-speed RDMA ports.
DThe high-performance and energy-saving Arm processor uses the 7 nm process to simplify the PCB design and save internal space.
Which of the following phases are involved in storage planning and design?
ASurvey
BConceptual design
CHigh level design
DLow level design
InfoAllocator is used to allocate 1 GB of hard capacity quota for directory A and 2 GB of hard capacity quota for subdirectory B under directory A. Which of the following statements are true?
AA maximum of 2 GB data can be written into subdirectory B.
BA maximum of 1 GB data can be written into subdirectory B.
CA maximum of 2 GB data can be written into directory A.
DA maximum of 1 GB data can be written into directory A.
Which of the following statements about the quota feature of Huawei OceanStor 9000 is false?
AQuotas can be set for users.
BQuotas can be set for user groups.
CQuotas can be set for directories.
DQuotas can be set for files.
During storage system delivery, an engineer fails to detect LUNs after scanning on a Linux service host. Which of the following statements about possible causes is false?
AA storage pool is faulty.
BA link is faulty.
CZones are incorrectly configured.
DNo multipathing software is installed on the host.
During a Power Module replacement, we should consider the following:
ADecreased performance
BCache processing capability
CDecreased reliability
DService interruption
Which of the following statements about big data processing technology are true?
ABig data technology delivers more powerful data processing capabilities, but leads to more complex management than traditional technology.
BDifferent from traditional data processing technology, big data processing technology processes data in various ways based on the data value.
CIn the big data era, distributed parallel processing is employed to process data. This data processing technique features flexible component scalability, powerful data management capability, and unified management.
Which of the following statements about the bucket is incorrect?
AA bucket is a container for storing objects. It can be considered as a directory that can be accessed through the network.
BBuckets can be nested, thereby avoiding complicated container structure.
CThe function of a bucket is similar to that of a container. Both of them can be accessed through the network.
DLifecycle management of a bucket means automatically deleting objects from buckets after a certain period of time based on configuration rules without client intervention.
Which of the following statements are true about the functions and benefits of Huawei SmartVirtualization?
AIt is compatible with mainstream heterogeneous storage systems, facilitating centralized planning and management of storage resources.
BYou can use the LUNs on a heterogeneous storage system without performing a full physical data mirroring, saving storage space.
CMultiple functions, such as remote replication and snapshot, can be configured for the LUNs on a heterogeneous storage system.
DA heterogeneous storage system can be configured using SmartVirtualization, to simplify management.
O&M involves various capability requirements, including not only product technologies, but also management regulations and processes.
ATrue
BFalse
When creating disk domains select the option “All available disks” and then manually select disks.
ATrue
BFalse
In file sharing scenarios, which factors affect the performance of clients served by Huawei OceanStor 9000?
AApplication characteristics
BFeature configuration
CService network
DHardware configuration of the OceanStor 9000
HyperClone supports writing to both the primary and secondary LUN.
