WorksheetsLMS-Infosyte Test-7
Total questions: 53
Worksheet time: 27mins
Which of the following is not a non-volatile medium?
NAND flash
MRAM
DRAM
PCRAM
Which of the following statements about data is incorrect?
Data can be input to a computer and processed by a computer program.
Data refers to numbers, letters, and symbols that have a certain meaning.
Data is information that has been processed and is logically related.
Data can be input to a computer for processing.
Which of the following statements is incorrect about SSDs?
The biggest drawback of SSDs is that they cannot be moved and data protection is subject to the power supply. Therefore, they are not applicable in all situations.
An SSD consists of a storage unit and a storage chip. It is the same as the common disk in terms of interface regulation and definition, functions, and usage.
The SSD is short for solid-state drive.
SSDs use flash chips as the storage medium. Compared with HDDs, SSDs have no data search time, latency, or seek time.
In a system that supports iSCSI, an iSCSI node encapsulates instructions and data into which of the following types of data packets to be transmitted over an IP network?
iSCSI packet
SCSI packet
Ethernet data frame
IP packet
Which of the following statements about FCoE are correct?
FCoE supports a shorter transmission distance than FC.
The Ethernet running FCoE must be an enhanced lossless Ethernet to meet the transmission requirements of the FC protocol for the link layer.
It is used to transmit FC signals over enhanced lossless Ethernet infrastructure.
FCoE encapsulates FC data frames in Ethernet frames and allows service traffic on a LAN and SAN to be transmitted over the same Ethernet.
RAID 50 is a combination of RAID 5 and RAID 0. Which of the following statements about RAID 50 are correct?
The disk usage is higher than that of RAID 5 and RAID 0.
RAID 5 is implemented first, followed by RAID 0.
RAID 0 is implemented first, followed by RAID 5.
The data read performance is higher than that of RAID 5.
The mirroring function of RAID is superior to the parity check function in terms of storage space utilization and data security.
True
False
SCSI uses a C/S architecture. Which of the following are included in SCSI?
Transmitter
Collector
Initiator
Target
Assume a company requires high-security storage systems at a storage space utilization of over 60%. Which of the following RAID levels is an appropriate choice?
RAID 6
RAID 1
RAID 0
RAID 10
JBOD is a collection of disks, usually called a disk chassis.
True
False
Which of the following are included in networking of scale-out storage?
Back-end service network
Front-end service network
Back-end storage network
Management network
Which of the following is the scale-out technology use by Huawei OceanStor Dorado V6?
SAS scale-out
SCSI scale-out
IP scale-out
PCIe scale-out
Scale-up and scale-out are two storage system capacity expansion methods. Which of the following statements about the two methods is incorrect?
Scale-out mainly increases the number of nodes.
Scale-out increases management complexity.
Scale-up is generally used in cloud computing.
Scale-up mainly improves the performance of a single node.
Huawei entry-level storage products adopt the dual-controller architecture by default.
True
False
Which of the following statements about CIFS and NFS is incorrect?
NFS can automatically recover faulty links.
NFS is commonly used for file service access of Linux hosts.
CIFS provides higher usability than NFS and requires additional software on the host.
CIFS is commonly used for file service access of Windows hosts.
In the IP SAN architecture, if the host uses the NIC and initiator software to convert packets, host resources are not occupied.
True
False
In Huawei RAID 2.0+, disk groups are internal objects automatically configured by the storage systems and typically used for fault isolation. They are not presented externally.
True
False
Which of the following statements about SmartMatrix is incorrect?
It is implemented based on front-end interconnect I/O modules (FIMs).
It allows user to add an unlimited number of controllers to a single storage system.
It supports both scale-up and scale-out.
It enables a back-end disk enclosure to interconnect with eight controllers.
Which of the following statements about SAS cable connection principles are correct?
Generally, a SAS cable provides four channels.
SAS devices are connected in the form of a loop.
The line bandwidth limits the number of risks in a loop.
Each SAS cable channel has 12 Gb/s bandwidth.
Which of the following problems can be resolved using the NVMe standard?
Compatibility of hardware interfaces using different PCIe standards
Compatibility of different PCIe SSDs on hosts
Transmission consistency in different PCIe standards
Drive applicability between different PCIe SSDs
Which of the following is not a PCIe device layer in the PCIe protocol structure?
Transaction layer
Presentation layer
Physical layer
Data link layer
Which of the following scale-up networking modes can be used by Huawei SAS disk enclosures?
Symmetric networking
Forward connection networking
Dual-plane networking
Backward connection networking
Which of the following RAID 5D scenarios may cause data loss?
Three disks in different RAID 5 groups fail at the same time.
Two disks in the same RAID 5 group fail at the same time.
Two disks in different RAID 5 groups fail at the same time.
Three disks in the same RAID 5 group fail.
The NFS protocol uses the client/server architecture.
True
False
Huawei storage supports the full-mesh architecture. Which of the following are supported?
Back-end full interconnection
Full interconnection using gateways
Full interconnection among controllers
Front-end full interconnection
Devices communicate with Fibre Channel switches through optical fibers. Either end of an optical fiber connects to the Fibre Channel HBA and the Fibre Channel switch or application server, respectively.
True
False
Which of the following are included in a NAS device?
NAS engine
One or more network interface cards
Disk resources using industrial standard storage protocols
NFS and CIFS protocols
Scale-out storage can store data on multiple independent devices. Which of the following are advantages of scale-out storage?
High performance
High-performance linked clone
High-performance snapshot
Global load balancing
Which of the following factors affect HDD performance?
Single platter capacity
Rotational speed
Seek speed
Port rate
Which of the following nodes stores HDFS metadata?
DataNode
Client
MetaNode
NameNode
Compared with the SCSI protocol, which of the following is not an advantage of the storage FC network?
Lower cost
Increased transmission distance
Improved scalability
High security
Which of the following are highlights of the Huawei FusionCube edge data storage solution?
Complicated capacity expansion
Attendance-free design
Plug and play ready
Edge-cloud synergy
Real space is not allocated to LUNs with SmartThin enabled when the LUNs are created but it is allocated on demand when the LUNs are being used.
True
False
Assume that: 1. A LUN has data a; 2. A snapshot (Snap1) is created and activated for the LUN; 3. A host changes data a in Snap1 to data b; 4. After the data change, a snapshot copy Snap2 is created for Snap1. In this case, when the host accesses Snap2, data b is returned.
True
False
Consistent splitting of SmartMigration enables multiple pairs to exchange LUN information at the same time, and then splits all pairs after the exchange is complete. This ensures data consistency at any point in time before and after the pairs are split.
True
False
Which of the following is an all-in-one edge IT infrastructure solution that is delivered as an integrated cabinet and mainly used in edge branches and vertical industry scenarios?
Huawei edge data storage
Huawei hybrid flash storage
Huawei scale-out storage
Huawei all flash storage
Huawei all-flash storage products use a technology to collect and analyze data activity levels and dynamically match data of different activity levels with storage media of different characteristics. What is the technology?
SmartThin
SmartQoS
HyperSnap
SmartTier
OceanStor UltraPath is a piece of multipathing software developed by Huawei, masking redundant LUNs.
True
False
Which of the following components are included in a LUN?
Metadata volume
Virtual data volume
Data volume
Copy volume
A snapshot of an original snapshot contains data written to the original snapshot. Which of the following is deemed a snapshot of an original snapshot?
Clone
Cascaded snapshot
Snapshot copy
Backup snapshot
Which of the following operations are included in the SmartQoS configuration of Huawei all-flash storage devices?
Removing LUNs from a SmartQoS policy as required
Deleting a QoS policy
Adding new LUNs to a SmartQoS policy
Modifying a SmartQoS policy
Activating and deactivating a QoS policy
Once an enterprise purchases a set of OceanStor Dorado V6 storage devices, the storage administrator can enable or disable SmartCache for a specified LUN or file system. Select one.
True
False
Assume a SmartTier policy is enabled in a company’s storage system. After monitoring I/Os and other statistics, it is found that most I/Os written by a service are active data and frequently accessed. To improve performance, the company should change the initial capacity allocation policy to allocation preferentially from the capacity tier. Select one.
True
False
SmartThin does not allocate all space in advance, but presents users a storage space larger than the logical storage space. In this way, users see a storage space larger than the physical storage space. Select one.
True
False
Which of the following statements about iFlushLink are correct? Select all that apply.
Hot and cold data separation
Intelligent multi-core technology
Efficient RAID
Low latency
Huawei storage provides comprehensive DR features. Which of the following implements unified, intelligent, and simplified DR scheduling and O&M with OceanStor BCManager? Select all that apply.
Active/Standby
Active-active
3DC
Snapshot
Huawei provides centralized backup and all-in-one backup to meet different requirements in backup scenarios. Select one.
True
False
Which of the following statements about HyperClone of Huawei storage (such as Huawei OceanStor hybrid flash storage) are correct? Select all that apply.
A consistency group centrally manages multiple HyperClone pairs to ensure that the copies of all members in the group are created at a consistent point in time.
After a HyperClone pair is created, initial synchronization is performed for data on the target LUN.
HyperClone can only synchronize data from the source LUN to the target LUN, but not the opposite direction.
After a HyperClone pair is created, data on the target LUN can be mapped to the host for read and write only after the initial synchronization is complete.
Which of the following operations can be performed on the license management page of DeviceManager? Select all that apply.
Update the license.
Activate a license.
Import a license.
Uninstall a license.
A file protected by WORM enters the read-only state immediately after data is written to it. Select one.
True
False
Which of the following accurately describe the application scenarios of SmartThin? Select all that apply.
SmartThin can assist with physical space contention among mixed services that have diverse storage requirements to achieve optimized physical space configuration.
For services where the growth of application system data is hard to evaluate accurately, SmartThin can assist with on-demand physical space allocation, preventing space waste.
When multiple services of different importance levels exist in a system, you can configure the minimum performance assurance policy for critical services that have clear performance requirements. When resource preemption occurs or the system is faulty, the quality of these critical services can be ensured.
SmartThin can help core system that require high service continuity, by expanding system capacity online without interrupting ongoing services.
Which of the following operation(s) need(s) to be performed by employee A of a bank during the initial storage maintenance at a data center? 1. Check the SmartKit installation. 2. Check the eService installation and configuration. 3. Check the alarm policy configuration.
2 and 3
3
1 and 2
1, 2, and 3
Which of the following are Huawei scale-out storage products? Select all that apply.
OceanStor 9000
OceanStor 6.x
OceanStor Protect
OceanStor Pacific series
