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WorksheetsLMS-Infosyte Test-8
Total questions: 60
Worksheet time: 30mins
A certain hard drive manufacturer claims that the company uses Huawei OceanStor hybrid flash storage system for a core service. Which of the following is incorrect about the SSD controller chip used in the storage system?
It has a built-in FTL algorithm
It cannot determine read/write locations
It supports multiple interfaces
It supports various types of flash memory
In the DME Storage feature set, which of the following is not part of protection automation?
Copy visibility
Copy quota
Copy creation
Copy enablement
Which of the following is the Scale-Out expansion technology used by Huawei OceanStor Dorado V6 storage?
SCSI Scale-Out
PCIe Scale-Out
SAS Scale-Out
IP Scale-Out
Compared to traditional DMA's internal bus IO, RDMA enables the direct transfer of which resource between applications on two endpoints over a network?
Processes
Threads
Data disks
Cache
During the period when the disk is inaccessible, which reconstruction method is used for writing to the disk?
Full disk reconstruction
Partial reconstruction
Recovery reconstruction
Local reconstruction
The virtualized data in a storage pool consists of metadata volumes and data volumes. Which of the following is not included in the metadata volume?
Data storage location
Data volume ID
LUN ID
DCL
The iSCSI protocol defines a SCSI command set that operates over the IP protocol. Which of the following is not included in a TCP packet encapsulating the iSCSI protocol?
iSCSI Header
TCP Header
IP Header
iSCSI data
A company's IT system administrator is responsible for configuring and managing the Huawei OceanStor hybrid flash storage system. Under emergency migration circumstances, which of the following SmartMigration configurations is correct?
Assign LUN A and LUN B to different controllers, with LUN A as the source LUN and LUN B as the target LUN to complete the SmartMigration configuration.
Assign LUN A and LUN B, create a snapshot for LUN A then use LUN A as the source LUN and LUN B as the target LUN to complete the SmartMigration configuration.
Assign Thick LUN A and Thin LUN B to the same controller group, with LUN A as the source LUN and LUN B as the target LUN to complete the SmartMigration configuration
Assign LUN A and LUN B, map LUN B to a host, then use LUN A as the source LUN and LUN B as the target LUN to complete the SmartMigration configuration
Through which of the following storage management software can a company's user automatically report connected storage devices directly to Huawei support center?
DeviceManager
SmartKit
CLI
eService
Which of the following statements about NFS (Network File System) is incorrect?
A commonly used network file sharing protocol in Linux/Unix environments
NFS allows file sharing only between clients with the same operating system over the network
NFS is used for independent transfers, so it uses TCP or UDP
NFS uses a client/server architecture
In a production environment with low server performance, tight network resources, and limited budget, handling a daily backup volume of 1~2T within 1~3 hours, which backup disk method is most appropriate?
10 GE lan-base
FC network
server-free
1Gb lan-free
The FE 25Gb RoCE module supported by OceanStor Dorado V6 is used for which of the following purposes?
Connecting with application servers
Connecting with intelligent hard disk enclosures
Dual-active arbitration
Connecting with SAS hard disk enclosures
Which of the following statements about data is incorrect?
Data can be input into a computer and processed by computer programs
Data is a general term for numbers, letters, and symbols that have certain meanings
Data is information that has been processed and has logical relationships
Data can act as input for computer processing
Regarding Ext3 file system failure repair, which of the following statements is incorrect?
You can check whether the file system mount status is read-only using the mount command
Execute fsck directly to repair a damaged file system that is in a mounted state
Do not perform fsck arbitrarily on a normally operating file system
You can locate file system failures by collecting the var/log/message file machine log information
When adding a host to a SmartQoS policy, which of the following functions is not supported?
A host can only be added to one policy
Burst flow control management
Flow control management
Lower limit assurance
Which of the following technologies does Huawei's all-flash storage product use to dynamically match data of different activity levels with storage media of different characteristics?
SmartThin
SmartTier
HyperSnap
SmartQoS
FC HBA cards are mainly used to connect which of the following devices?
Fibre array and IP storage array
Server and server
Server and fibre array
Server and IP-SAN array
In intelligent tiering technology, data that is not accessed for a long time is marked as which type?
Hot data
Fast data
Slow data
Cold data
In the SAS protocol architecture, which layer describes the interface between the link layer and the transport layer?
Transport layer
Port layer
Link layer
Physical layer
A company needs to create a backup strategy for a small incremental backup data volume within a short time while maximizing storage space savings. Which type of backup do you recommend?
Full backup
Cumulative incremental backup
Differential incremental backup
A client has an initial backup capacity of 1T with an average daily data increment of 10GB . The backup strategy is a full backup on Monday, with differential backups from Tuesday to Sunday. Both full and differential backups are retained for 4 weeks. Without considering deduplication/compression ratio, the total backup volume should be at least:
4940GB
5280GB
4260GB
5940GB
Regarding the differences between DAS and SAN, which of the following descriptions is incorrect?
SAN provides higher reliability through redundant networking
DAS and SAN are both external storage, so they can easily share storage resources
DAS is suitable for small and medium-sized LAN environments with only a few servers
SAN is suitable for medium and high end storage applications, such as big data databases, centralized large-scale storage, backup, and disaster recovery scenarios
When Huawei's distributed storage block storage interfaces with OpenStack, which Driver is used?
Swift
Manila
S3
Cinder
Which of the following is not part of the intelligent multi-core technology?
Multi-stream partitioning technology
CPU grouping technology
Inter-core lock-free technology
Business grouping technology
Which tool supports multi-vendor device adaptation, enabling unified monitoring of hardware devices such as servers, storage devices, and network devices, as well as server operating systems and databases? It features simple operation, enterprise management platform construction, lightweight and web-based characteristics, reducing system maintenance and upgrade costs.
eService
SmartKit
SmartTool
eSight
When a company purchases a set of Huawei storage services that need to provide both block and file services, which of the following statements is incorrect?
CIFS/NFS are both C/S modes
Support non-domain environments
Support CIFS and NFS deployment on the same network
Support AD domain environments
Which of the following is not a basic component of a SAN architecture?
Server
Backend storage system
Switch
Router
What are the shortcomings of traditional RAID compared to RAID 2.0?
Slow reconstruction speed
No data redundancy
Very slow speed
No difference
In the Huawei OceanStor Dorado V6 series products, what color does the hard drive enclosure locator light turn on after being activated?
Blue
Green
White
Yellow
Which factor does not need to be considered when planning storage backup capacity?
Data retention period
Total amount of data
Deduplication rate
Backup network
SmartQoS feature cannot manage which of the following resource?
Host group
LUN
LUN group
Host
Which of the following descriptions about data compression features is incorrect?
It may lose some data information
It reorganizes data
It extends the lifespan of SSDs
It reduces the storage space occupied by data
In RAID 2.0+ technology, what is the minimum allocation granularity of storage space in Thin LUN mode?
Chunk Group
Chunk
Grain
Extent
Which of the following statements about serial and parallel transmission is correct?
Parallel transmission is slow, low cost, and suitable for short-distance transmission
Serial transmission is slow, low cost, and suitable for long-distance transmission
Serial transmission is fast, high cost, and suitable for short-distance transmission
Parallel transmission is fast, high cost, and suitable for long-distance transmission
Which of the following descriptions about the full interconnection of controllers in the SmartMatrix architecture is incorrect?
Controllers within a single control enclosure achieve full interconnection through the enclosure's passive backplane
In a storage system expanded by Scale-out, there are direct links between controllers
In a storage system expanded by Scale-out, controllers do not require forwarding
Controllers within a single control enclosure achieve full interconnection through external switches
Which of the following descriptions about Huawei hybrid flash storage feature is incorrect?
Supports SCSI, FC protocols
Supports NFS, CIFS protocols
Supports S3, Swift protocols
Supports integrated SAN and NAS
Which of the following descriptions about the SmartQoS feature of Huawei hybrid flash storage is incorrect?
The system schedules I/O requests of different priorities based on the weight of different priority LUNs, prioritizing high-priority business cache allocation requests
When important applications have high latency, to ensure delay reliability, the system will delay low-priority I/O while minimizing the impact on high-priority I/O
When concurrent resources are insufficient, it will reject low-priority I/O to ensure more concurrency for high-priority business
When there is a CPU resource bottleneck, high-priority business evenly shares CPU resources with low-priority business
In a storage system, when the alarm information reaches a preset threshold, which of the following can prevent the loss of alarm quantities?
System settings
Dump
Alarm notification
FTP server
In the data center's initial maintenance project of Bank Vala, the following operations are required: 1. Check SmartKit installation; 2. Check eService installation and configuration; 3. Check manager configuration. Which option lists all required operations?
1, 2
3
1, 2, 3
2, 3
Which of the following descriptions about storage virtualization is incorrect?
Hides the complexity of physical devices
Overcomes the limitations of physical capacity
Displays additional information about hardware
Integrates existing functions
When a company plans to shut down its server room for electrical safety inspections without interrupting business on weekends, what is the correct power-on sequence for the devices after the inspection is completed?
External power -> server power -> switch power -> control cabinet power
External power -> server power -> control cabinet power -> switch power
External power -> control cabinet power -> server power -> switch power
External power -> control cabinet power -> switch power -> server power
In an IP SAN network, which hardware can offload iSCSI packets?
FC HBA card
RNIC card
Front-end shared card
TOE NIC
If an iSCSI HBA card is used to handle iSCSI requests, where are the SCSI commands processed?
HBA card
CPU
Operating system
Network card
Which of the following descriptions about the overall characteristics of the SAN dual-active solution is incorrect?
Gateway free dual-active architecture with fewer failure points and higher system reliability
Can be smoothly upgraded to a two-city three-center solution by combining with the HyperReplication feature
Meets business needs with RTO=0 and RPO=0
When a single storage in the production center fails, some data will be lost
The iSCSI initiator can be implemented in three ways: 1/software initiator driver, 2/TOE card, 3/iSCSI HBA card. What is the correct performance ranking from high to low?
2 > 3 > 1
3 > 1 > 2
3 > 2 > 1
Center A has 3000G of data, Center B has 1500G of data, and the deduplication rate is 3. How much space does Center A need at least to accommodate the data replicated from Center B?
3500
4500
1500
3000
During routine inspections, an operations engineer discovers a storage device alarm and needs to perform quick maintenance. Which of the following operations is incorrect?
Check system performance and handle related anomalies
Check system status and handle related anomalies
Check indicator light status and handle related anomalies
Restart the storage device
For crucial and stringent business continuity that requires uninterrupted data services and disaster recovery protection even in the event of natural disasters (flood/earthquake), which disaster recovery solution should be chosen?
Synchronous replication in a dual-node data center within the same city, with another data center in a remote location for asynchronous remote replication
Dual-active disaster recovery network in a dual-node data center within the same city
Asynchronous remote replication in a dual-node data center within the same city, with another data center in a remote location for asynchronous remote replication
Dual active disaster recovery network with one data center locally and one in a remote location
Which of the following descriptions about SmartMatrix is incorrect?
Using the SmartMatrix architecture, a single system can be expanded to an unlimited number of controllers
SmartMatrix integrates the advantages of Scale-Up and Scale-Out
SmartMatrix is implemented based on front-end shared cards
SmartMatrix enables full interconnection of back end disk enclosures with 8 controllers
Using DeviceManager to collect information about storage devices, which of the following information cannot be received?
System logs
Operation logs
Disk logs
Storage content
Which graphical management interface is built into Huawei's all-flash storage system for querying, setting, managing, and maintaining the storage system?
Smartkit
DeviceManager
eService
eSight
Which of the following is not part of the operational workflow for a homogeneous migration solution?
Check the compatibility list of the source storage on the compatibility platform
Upgrade the source storage version to V300R006
Inspect the target storage to ensure normal status
Evaluate the network, reliability, and performance of the target storage
Huawei's all-flash storage system software uses a Symmetric Active-Active architecture. Which of the following descriptions is incorrect?
The host read/write requests are processed by the controller determined by hashing the LBA of the read/write requests.
Customers need to plan the ownership of LUNs when creating them to achieve controller load balancing.
LUN data is evenly distributed across all nodes' caches, and all nodes' controllers handle it.
RAID2.0+ technology ensures data is evenly distributed across all storage pools' disks, achieving higher load balancing.
Local deduplication is controlled by the deduplication module. Typically, the default disk area size is:
1KB
1024 bits
521 bits
512 Bytes
Which of the following storage media is not non-volatile?
DRAM
NAND Flash
PCRAM
MRAM
Which command is used to query the functional configuration information of the imported license files in the storage system?
show system general
show license
show license active
show system
LUN migration does not support which of the following application scenarios:
Changing the RAID level of a LUN
Changing the WWN of a LUN
Changing the LUN type (thick or thin)
Changing the read/write performance of a LUN
In traditional RAID maintenance, if a certain number of disks fail, RAID maintenance prevents data loss, and the data recovery process has not started yet, what is the status?
Normal operation
Degraded
Failed
Reconstructing
The SmartQoS strategy provides multi-dimensional flow control, which object cannot be added to the strategy?
LUN
LUN group
Host group
File system
What are the shortcomings of traditional RAID compared to RAID 2.0?
Slow reconstruction speed
No data redundancy
Very slow speed
No difference
