Logical ports are virtual ports that carry host services An IP address is assigned to each logical port for services Different logical ports can have the same IP address Which of the following requirements are NOT involved when implementing of the business continuity plan? The policy and regulation requirements The business operation requirements The customer requirements The vendor requirements for a Huawei OceanStor distributed storage, which statements is NOT true about the storage interface layer in the software architecture? SCSI and iSCSI interface protocols are supported S3 and Swift protocols are supported The HDFS protocol is supported The IB protocol is supported If no hot spare disk is configured, how many faulty disks can a RAID 3 group tolerate at most? 4 1 3 2 Which of the following RAID technologies does not require parity data calculation when being used to write data? RAID 0 RAID 3 RAID 6 RAID 50 Which of the following statements is NOT true about the functions of HyperClone? When the source LUN fails, service data can be recovered from any point in time before the fault occurred using the data backed up through HyperClone
If a disk failure occurs on the source LUN of HyperClone, you can split the target LUN from the source LUN to continue providing services If a logical fault occurs on the source LUN, data can be reversely synchronized from the target LUN to the source LUN to recover services on the source LUN Multiple target LUNs can be created through HyperClone to provide the service data on the source LUN for multiple applications Which of the following are not examples of unstructured data? Image SQL databases NoSQL databases Video Which statements are true about unstructured data? There are regular models for unstructured data Text and images are unstructured data Images, audio, and video are unstructured data XML and HTML files are unstructured data Which of the following RAID types has fault tolerance of no more than 1 drive failure? RAID 0 RAID 3 RAID 5 RAID 6 Which of the following statements are true about working principles of traditional RAID technologies? RAID 1 uses parity disks to protect data RAID 0 uses the striping technology to improve the read/write speed of disk groups RAID 10 is a RAID level that combines mirroring and striping RAID 6 requires at least N+2 (N>=2) disks to form an array When maintaining a Huawei all-flash storage system, the engineer finds an expansion module alarm on the “alarm and events” page of DeviceManager. After analysis, they determine that the expansion module needs to be replaced. What should the engineer do?
Replace the expansion module during off-peak hours Connect the new expansion module to the active optical cable (AOC) After the replacement, label the replaced expansion module Use the Huawei storage networking assistant to confirm the cable connection of the expansion module to be replaced Which of the following are the characteristics of the active-active mode of a storage controller? Two controllers process the I/O requests from application servers concurrently If a controller becomes faulty, the other takes over the work of the faulty controller without disrupting ongoing services The primary controller processes the I/O requests from application servers and the secondary controller is in the idle state The active-active mode achieves load balancing, full utilization of resources, and system performance improvement Which statements about SmartTier dynamic storage tiering technology are true? The SmartTier calculates and analyzes the activity level of data The SmartTier automatically and dynamically matches data from different activity levels with storage media of different characteristics The SmartTier data relocation activities are based on configured policies Data statistics, analysis, and relocation activities of the SmartTier affect service continuity and data data availability what of following are NOT the function of hot spare in storage? Additional space of usage when storage resource is low Used as cache to increase the performance of disks Spare disk space for storing metadata Spare disk space used for disk data reconstruction when disks are faulty Which of the following are components of a backup system? Backup software Backup media Backup server Backup policy An enterprise deploys a storage system and purchases SSDs, SAS disks, and NL-SAS disks. Which of the following statements about the mapping between disks and storage tiers are NOT true?
SSDs belong to the high-performance tier NL-SAS disks belong to the performance tier SAS disks belong to the capacity tier SAS disks belong to the high-performance tier Which of the following statements are true? CIFS is a network-based sharing protocol. It has high demands on network transmission reliability so it usually uses TCP/IP One disadvantage of CIFS is that Windows clients must be equipped with dedicated software NFS is a stateless protocol while CIFS is a stateful protocol. NFS can be automatically recovered from a fault while CIFS cannot. Both the CIFS as well as the NFS protocol requires file format conversion file system protocols can be either stateless or stateful. Which of the following statements are NOT true regarding the properties of NFS and CIFS? NFS is a stateful protocol CIFS is a stateless protocol NFS has higher transmission efficiency than CIFS due to more state information sent during connection CIFS has higher transmission efficiency than NFS If a bank acquires a new all-flash storage device (for example, a Huawei OceanStor all-flash storage system), and an engineer performed initial configuration on the device. Which operation is correct? Log in to DeviceManager through port 8088 Create a thick LUN Configure a RAID 5 policy as the system must tolerate failures of up to two chunks Create 600 hosts in one batch Which of the following statements is NOT true about a dual-controller storage system? There are two working modes: active-standby and active-active In active-standby mode, only one controller works at a time In active-standby mode, if one controller is faulty, services are not affected When one controller is faulty, the service failover in active-active mode is more efficient than that in active-standby mode which of the following statements is NOT true about distributed storage? Supports large-scale horizontal expansion
Supports expansion by addition of nodes to increase both computing capability and storage space Does not support elastic EC for data redundancy protection Supports storage resource pooling and virtualization which of the following are reasonable application scenarios for QoS? To ensure the performance for core applications when resources are insufficient To ensure the performance for high-priority subscribers To improve the network stability and reduce the packet loss To increase the network traffic and avoid the congestion caused by the overconsumption There is an issue that in the storage system some hosts consume too many resources. Which of the following configuration procedures and measurement indicators are NOT correct? Enable the QoS to limit the number of connections to hosts Enable the QoS to limit the maximum IOPS that can be utilized by hosts at a certain time Enable QoS to limit the maximum bandwidth that can be utilized by hosts at a certain time Enable QoS to limit the number of files that can be transferred on each session Which of the following statements are NOT true about the NVMe protocol? The NVMe protocol enables the device to directly communicate with the CPU The NVMe protocol supports HDDs Devices that support the NVMe protocol can be used without installing a driver The NVMe protocol can be used to transmit the SCSI protocol Which of the following statements can not correctly describe the relationship and properties of HA and DR? HA handles single component failures causing the workload to switch between servers in the cluster DR is able to cope with large scale failures causing the workload to switch between data centers HA is a technology design that minimizes IT distributions by providing continuity through redundant or fault-tolerant components HA is a pre-planned approach for re-establishing IT functions and their supporting components at an alternate facility in the event of disaster During routine inspection, an O&M engineer finds that an alarm is generated on a storage device and performs quick maintenance. Which of the following operations are CORRECT? Check the indicator status and rectify related faults
Check the system performance and handle related exceptions Check the service status and rectify related faults Restart the storage device Which RAID levels do NOT use the parity check technology? RAID 1 RAID 3 RAID 5 RAID 0 Which of the following are NOT attached to the storage system serially? ATA Drive SAS Drive NL-SAS Drive IDE Drive Which of the following statement about SCSi are true? SCSI stands for “Small Computer System Interface”. It is a protocol system The latest protocol is SCSI-3, which provides a transmission speed of up to 1 GB/s The evolution is SCSI-1 > SCSI-2 > SCSI-3 SCSI supports communication between different devices When an engineer deploys a storage system, the customer requires data recoverability if one disk is faulty. Which RAID levels can NOT be selected by the engineer? RAID 0 RAID 3 RAID 5 RAID 6 When maintaining a Huawei all-flash storage system, the engineer finds an expansion module alarm on the “Alarms and Events” page of DeviceManager. After analysis, they determine that the expansion module needs to be replaced. What should the engineer do? Replace the expansion module during off-peak hours Connect the new expansion module to the active optical cable (AOC) After the replacement, label the replaced expansion module
Use the Huawei Storage Networking Assistant to confirm the cable connection of the expansion module to be replaced Which of the following statements is NOT true about a dual-controller storage system? There are two working modes: active-standby and active-active In active-standby mode, only one controller works at a time In active-standby mode, if one controller is faulty, services are not affected When one controller is faulty, the service failover in active-active mode is more efficient than that in active-standby mode Which of the following statements are NOT true about RAID 2.0+? Chunks belonging to one file will never be written on the same physical disk RAID 2.0+ has a higher RAID overhead than traditional RAID types With RAID 2.0+ it is supported to select no hot spare disks Raid 2.0+ allows for a complete enclosure to fail without causing data loss Backups are used to replicate data or systems for storage. If an error or disaster occurs, these backups can be used to restore system data and restore services to the normal running state True An engineer maps the storage system to the file server to store various enterprise files. One day, the file system is attacked by viruses and files cannot be opened. To access the files, the engineer performs a snapshot rollback. Which statement is FALSE? A snapshot rollback can quickly restore data Some data may be lost during a snapshot rollback If there are writes to the source LUN during a snapshot rollback, the rollback is performed after the writes are complete When no host reads or writes data, the snapshot data is rolled back to the source volume in sequence A bank enables SmartTier for the storage space of the bill transaction system. During the I/O monitoring process, it is found that the write data access rate of the service is high. Which of the following statements about performance optimization configuration are correct? Allocate capacity from the high performance tier first Relocation to high performance tier Allocate capacity from the capacity tier first Relocation to a low performance tier
Which of the following cloud service model deals with providing storage, network, servers and virtualization of resources? Software As A Service (SaaS). Platform As A Service (PaaS) Infrastructure As A Service (IaaS). Storage As A Service (IaaS). Which of the following file system is most suitable for the storage of Big Data? NTFS EXT4 HDFS BTRFS ICT is a technological field that combines information technology and communication technology true Select the correct statements that describes the properties of bus technology in ICT architecture. Bus is a communication system that transfers data between internal components and external components. Bus can be divided into internal bus and external bus Bus technology are only available in serial form. The CPU needs to go through the memory to directly access the Bus. It provides connection between sets of nodes and allows the connected devices(nodes) to communicate with each other but it is not a device. Which of the following fits the above description? Host Network Storage array Switch It is a device which manages the physical disk drives and presents them to the users as logical units. Which of the following device fits the above description? Host Storage NIC Storage Controller Storage Cache.
In a clustered NAS architecture, which of the following allows multiple file system to be consolidated and do not need to be managed separately? Global Namespace Global Sharing Global Cache Global Concurrency Which one of the following is a type of mechanical drive? SSD SAS Drive NVME Drive Flash Drive Which of the following are attached to the storage system serially? ATA Drive SAS Drive NL-SAS Drive IDE Drive Which of the following disks has the best performance in terms of speed? NL-SAS SAS SSD SATA Select the correct statements that describes Mean Time Between Failure(MTBF) MTBF can accurately pinpoint the time of failures of the hard disks The higher the MTBF, the hard disk will have shorter lifespan expectancy MTBF is used to measure the reliability of hard disks MTBF is the predicted elapsed time between inherent failures of hard disks You are tasked to setup a SAN storage system that has the following requirements: 1. To minimize the workload on server resources 2. Optimize the capabilities on storage system for deduplication. Select the following options that fits the scenario above Use NIC instead of HBA cards to minimize the host resource consumption during I/O operations
Offload the storage processing tasks to the server to optimize the data deduplication. Usage of TCP/IP offload engine technology to do processing on HBA cards on the server to minimize the usage of server resources. Adding hardware acceleration module to the storage system to optimize the performance of data deduplication. SAN is a storage architecture that connects storage device and application servers through network true Which of the following represents the logical storage resource connected to the target in SAN? LUN Volume Tape Drive Disk Drive Which of the following protocol has the slowest performance SAS FC SATA InfiniBand Which of the following storage protocol allows FC packets to be transmitted over Ethernet networks? iSCSI Ethernet FC FCoE When configuring NAS file share on Linux systems using NFS, the shared directory do not need to be mounted false Which of the following is not a common NAS protocol? FTP CIFS SSH NFS Which one of the measurement indicator for disaster recovery systems focuses on the amount of time required to restore services back to normal?
RTO RPO RCO RDO When planning the disk domain for the storage systems, which of the following needs to be considered? Mass of the disks Capacity of disks Hot spare policy Types of disks