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WorksheetsLMS-Infosyte Test-1
Total questions: 55
Worksheet time: 28mins
Information is data that is not processed, including data with context, relevance, and purpose. Select one.
True
False
Which of the following are common SCM media types?
Dynamic random-access memory (DRAM)
Phase-change memory (PCRAM)
Resistive random-access memory (ReRAM)
Magnetoresistive random-access memory (MRAM)
Which of the following are the requirements of storage technology development?
Extended connection distance
Enhanced resource utilization
Security
Data sharing
Which of the following statements are correct about the scale-up of a 2 U SAS disk enclosure?
The number of cascading disk enclosures cannot exceed the preset threshold.
Expansion module A connects to controller A and expansion module B connects to controller B.
In a loop, the EXP port of an upper-level disk enclosure is connected to the PRI port of a lower-level disk enclosure.
Expansion module A uses forward connection, whereas expansion module B uses backward connection.
A sector is the smallest storage unit that can be independently addressed in a disk. Which of the following is the default sector size?
512 bytes
521 bytes
1 KB
1024 bits
RAID 1, one of two RAID data protection modes, uses mirror protection.
True
False
The link layer of SAS defines how the transmitted commands, status, and data are encapsulated into SAS frames and how SAS frames are decomposed.
True
False
Which of the following are storage services provided by Huawei scale-out storage?
Object storage
Block storage
Quantum storage
File storage
Which of the following layers are included in a layered IB network?
Physical layer
Link layer
Transport layer
Network layer
Application tier
RAID is used to group multiple independent physical disk into a logical disk in different ways. It offers data redundancy technologies and improves storage performance to a higher level than a single disk.
True
False
The mirroring function of RAID is superior to the parity check function in terms of storage space utilization and data security.
True
False
Scale-out storage can store data on multiple independent devices. Which of the following are advantages of scale-out storage?
High-performance linked clone
High-performance snapshot
High performance
Global load balancing
Which of the following statement is incorrect about the full interconnection of controllers in the SmartMatrix architecture?
In a scale-out storage system, there are direct links between controllers.
In a scale-out storage system, data forwarding between controllers is not required.
Controllers in a single controller enclosure are fully interconnected through the chassis passive backplane.
Controllers in a single controller enclosure are fully interconnected through external switches.
Assume a storage device uses RAID 2.0+. If a disk fails, the valid data on the faulty disk is reconstructed to all other functioning disks in the resource pool (fast one-to-many reconstruction), to resume redundancy protection.
True
False
The optical module rate must be consistent with that on the interface module label. Otherwise, the storage system reports an alarm and this port is unavailable.
True
False
The PCIe protocol standard is developed to provide higher throughput for the system. Which of the following are features of the PCIe protocol?
Point-to-point connection
Full duplex
High reliability
Tree networking
Which of the following statements about IP SAN and FC SAN is incorrect?
The cost of FC SAN is relatively high.
The cost of IP SAN is relatively low.
IP SAN uses existing IP networks.
FC SAN is compatible with all IP network devices.
An SSD consists of a control unit and a storage unit. Which of the following is not included in a control unit?
SSD controller
DRAM
Host interface
NAND flash cell
The NFS protocol uses the client/server architecture. Select one:
True
False
Which of the following RAID levels can tolerate the maximum number of failed disks when a RAID group consists of eight 2 TB disks?
RAID 3
RAID 6
RAID 5
RAID TP
Which of the following statements about the NAS architecture are correct?
NAS sharing is based on files.
NAS does not require multiple file servers.
NAS uses network and file sharing protocols for archiving and storage.
UNIX and Windows users can share the same data through NAS.
Which of the following indicators are used to measure HDD performance?
Average access time
Disk capacity
Rotational speed
Data transfer rate
The OS and file system of NAS storage devices are the same as those of general-purpose servers. Select one.
True
False
Which of the following statements are correct about SSDs and traditional HDDs?
SSDs consume less power than traditional HDDs.
SSDs generate more noise than HDDs.
HDDs are more shockproof and drop-resistant.
SSDs provide a faster read/write speed.
Compared with the traditional PCI bus, which of the following are advantages of PCIe?
Compatible with PCI and backward compatible with PCI software
Dual channels, high bandwidth, and high transmission rate
Hot swappable
Error handling and error reporting capabilities
Which of the following is the scale-out technology used by Huawei OceanStor Dorado V6?
IP scale-out
SAS scale-out
SCSI scale-out
PCIe scale-out
In iSCSI communication, an initiator is used to initiate I/O requests. Which of the following can be used as an initiator?
TOE card
Initiator driver program
iSCSI disk array
iSCSI HBA
RDMA is a technology that transfers buffer data between two server applications over a network. Select one:
True
False
Common Internet File System (CIFS) has high requirements on network transmission reliability, so it usually uses TCP/IP. Select one:
True
False
In the intelligent age, storage should integrate AI technologies into the full-lifecycle management to improve storage management, performance, efficiency, and stability. Select one.
True
False
A logical drive is a disk managed by a storage system. Each logical drive corresponds to a physical disk. Select one.
True
False
Which of the following statements about Network File System (NFS) is incorrect? Select one.
NFS enables clients using the same operating system to share files over a network.
NFS is used for independent transmission thereby uses TCP or UDP.
NFS works based on the client/server architecture.
Network file sharing protocol commonly used in Linux/Unix environments.
There are built-in coffer disks and external coffer disks. Select one.
True
False
SmartThin is a storage resource virtualization technology that enables thin provisioning. Compared with conventional storage system deployment, what are the advantages of SmartThin? Select all that apply.
Improved storage space utilization
Better meets storage resource demands
Much lower initial investment for users
Unbalanced storage space utilization
Which of the following statements about SmartQoS are correct?
When running multiple services of different importance, you can configure a minimum performance assurance policy for critical services that have clear performance requirements.
Environments with both online and backup services will restrict the maximum burst traffic of the backup service to minimize the performance impact on online services.
SmartQoS is suited to scenarios with high service loads and multi-service environments.
If service loads are far beyond the system processing capability, priority-based control is used to reduce the impact on the performance of high-priority services.
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?
SmartQoS
SmartThin
HyperSnap
SmartTier
A SmartQoS policy provides multi-dimensional processes. Which of the following objects cannot be added to such a policy?
Host group
File system
LUN group
LUN
When post-process similarity-based deduplication is used, the storage system divides newly written data into blocks. The default data block size is 8 KB.
True
False
Huawei provides centralized backup and all-in-one backup to meet different requirements in backup scenarios. Select one.
True
False
Which of the following operators are used to complete CLI commands during storage management?
Tab
Space key
Enter
|
Which of the following statements about snapshot activation configuration are correct?
Snapshots are activated immediately by default.
Snapshots can use duplicate names.
Batch cancellation of immediate activation cannot be performed for selected snapshots.
Batch activation can be performed for selected snapshots.
Which of the following functions is not supported when a host is added to a SmartQoS policy?
Lower limit guarantee
Traffic control management
A host can be added to only one policy
Burst traffic control management
OceanStor Pacific series uses Distributed Relational Object Service (DROS) to manage block, file, and object services. Select one:
True
False
Data written to a scale-out storage system is sliced into N (an even number) data blocks, and M parity blocks are obtained by using the EC encoding algorithm. What are the possible values of M? Select all that apply:
4
1
3
2
What is the access control policy used by OceanStor Pacific? Select one:
RBAC
ACL
ABAC
PBAC
The storage system uses global wear leveling. When the wear degree of multiple SSDs is near the threshold, the storage system preferentially writes data to specific SSDs so these SSDs wear faster than the others to prevent multiple SSDs failing at the same time. Select one:
True
False
Huawei all-flash storage uses adaptive intelligent deduplication detection to prioritize service performance and automatically switch deduplication modes based on service loads, avoiding the disadvantages of a fixed deduplication mode. Select one.
True
False
Which of the following are included in the snapshot technology of Huawei storage? Select all that apply.
ROW
DCL
CDP
COW
Which statements about the HyperClone synchronization process are correct? Select all that apply.
After a HyperClone pair is created, initial data synchronization is started and synchronized data will overwrite any data on the target LUN if present.
After a HyperClone pair is created, all data is synchronized during initial synchronization.
Reverse and incremental synchronization are not supported.
A snapshot license is required because, during initial synchronization, a snapshot is automatically created for the source LUN.
An enterprise creates snapshots for service LUNs hourly. At 11:30 a.m., a new employee mistakenly deletes data generated at 9:30 a.m. To retrieve the deleted service data and minimize service data loss, snapshots generated at which time point should be restored?
10:00
9:00
12:00
11:00
The all-flash storage product features high reliability. Which of the following technologies are used to ensure high reliability of the system?
Advanced data protection technologies, such as HyperSnap and HyperReplication.
Dual-redundancy design and active-active working mode
Coffer disk
Power-off protection
Which of the following algorithms is used when UltraPath selects available paths between the application server and storage system in turn to deliver I/Os?
Round robin algorithm
Minimum task algorithm
Bubble-sort algorithm
Minimum queue depth algorithm
Which of the following is the main storage performance monitoring indicator in small I/O scenarios?
Time
Capacity
IOPS
Bandwidth
Which of the following objects can be monitored on DeviceManager?
Logical port
Disk
Snapshot
LUN
Controller
Which of the following statements about eSight are correct?
It supports unified management of Huawei servers, storage devices, virtualization devices, switches, routers, WLAN devices, and firewalls.
It adopts a R/S architecture.
It uses a component-based architecture, on which users can select desired components to fit site requirements.
It supports only Huawei devices.
