HCIA-Storage V4.5
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Total Questions : 536
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An enterprise needs to purchase backup media for data backup. To inherit the enterprise’s original tape backup architecture and strategy, it is necessary to mention
High backup speed. What kind of backup media did this enterprise purchase?
Incremental backups must rely on the last full backup and the last incremental backup to perform data recovery
Complete recovery, data reconstruction during recovery is slower than full backup, and recovery window is larger.
All components of storage devices use the redundancy design to ensure system reliability. Redundant modules include controller modules, management modules, BBU modules, interface modules, power modules, and fan modules
Which of the following statements correctly describe the improvements of SAS technology compared to SCSI? Select All that Apply.
Suppose, for cost control reasons, a startup company can acquire only one storage device to provide services. However, its services require high hardware reliability, so an engineer recommended a Huawei OceanStor all-flash storage system. Which statements describe the high reliability of the storage system? (Select All that Apply)
In the scenario where only 2 disks are in the RAID group, which one of the following uses data striping?
What is the correct sequence of the overall reconstruction process?
1. Query all CKGs with CK falling on the faulty disk
2. Assign hot spare CK to all these CKGs
3. Update CKG information and release the reconstructed CK
4. Write the reconstructed data to the hot standby CK
5. Through the RAID algorithm, calculate the data on the failed disk based on the data on the normal disk and the check disk
Which of the following technology segregates the nodes in the SAN fabric into multiple networks and allows access control of the members?
A bank purchases a new storage device. During the RAID level configuration, the bank requires that data reliability be improved and parity data be stored on different disks. Which RAID levels can meet the requirements? (Select All that Apply)
The following two descriptions are correct:
Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.
Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.
NAS provides file sharing services through protocols such as NFS and CIFS.
When the RPO time requirement is at the minute level, the traditional tape backup method can be used.
What is required to add additional controllers to an existing HUAWEI OceanStor system?
Which of the following best describes the relationship between the storage and host in DAS?
A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts.
Statement 1: MLC drives are optimal when used for high intensity writes to that disk.
Statement 2: The latency of SSD drives is about 0.1 s.
What is the main difference between desktop grade hard drives with enterprise grade hard drives which is the deciding factor in hard drive usage?
Which are characteristics of the HUAWEI OceanStor hardware?
(Multiple Choice)
Select which of the following which is not a properties of Distributed Object Storage Architecture.
In HUAWEI OceanStor, for synchronous replication to be successful, all host applications must be pauzed during the replication update process.
The restore time objective (RTO) specifies the time needed to recover the data and servers after after a disaster has occured,
Statement 1: Synchronous replication is often possible over distances of more than100k
Statement 2: Asynchronous replication must be used when the host has a file system that is Linux based.
What is the main difference between mechanical drives such as SAS with solid state drives(SSD)?
Most of the data generated by the Internet industry is structured data, which accounts for about 80% of the total data.
Which of the following statements about the differences between DAS and SAN is incorrect?
Which of the following is a valid iSCSI name that can be used to set up the iSCSI connection between the initiator and target? (Multiple Choice)
In HUAWEI OceanStor,HyperSnap of a LUN uses the Copy On Write method to keep track of changes blocks
Statement 1: a snapshot of a ThinLUN at creation does not occupy storage capacity. The snapshot of a ThickLUN at creation immediately occupies storage capacity.
Statement 2: When a snapshot of a ThickLUN exists, there is always space available to store changes to the original data.
Because of the addition of the Data Center Bridging technology .today iSCSI is, just as FC, a lossless protocol.
Regarding OceanStor V3 LUN deletion, what is wrong in the following description?
When deploying random small IO-based database services on storage, which RAID type should be appropriate? for
what?
If a company uses an OLTP database, which migration strategy is suitable for SmartTier?
There are two descriptions about backups, the correct ones are:
Description 1: The disaster recovery solution does not need to consider whether it is backed up on tape or hard disk.
Description 2: The backup plan should consider the worst case.
When a company's customers need to complete data migration between devices, what features can be used to complete? (Multiple choices)
What kind of technology does the OceanStor 5300 V3 expansion controller belong to?
SAN network-based data replication technology is a storage area network between front-end application servers and back-end storage systems
Network (SAN), adding a layer of intelligent switches, the front end is connected to the server host, and the back end is connected to the storage device.
In the following backup media, the order of unit capacity price from low to high is:
86. When using the NFS protocol, adding clients and setting read and write permissions have an impact on performance.
After the multi-path software is installed on the host, which of the following descriptions are correct? (Multiple choice)
A, LUN is automatically mapped to the host
B.
Assist the operating system to access the same LUN through multiple links to avoid logical errorsC.
Improve link reliability and prevent single link failure, thereby avoiding system failureD.
Establish a SCSI connection between the host and the storage deviceThe port selected by the IP drift strategy has nothing to do with the port rate, only related to the location of the port, the order of selecting the port
Yes?
1. Port at the same position of the remote controller
2. Ports at other locations of the peer controller
3. The port of the local controller
When the Windows copy program copies local files to the file system, the file system block size of the HUAWEI OceanStor storage system is the default, which ensures the full use of storage space.
A, right B, wrong answer: B
The SmartCache feature in HUAWEI OceanStor series products can only improve read performance, not write performance.
Database data belongs to structured data, and audio and video data belong to unstructured data.
The growth comes mainly from the rapid growth of unstructured data.
Which of the following is wrong about FC SAN network switching technology?
Description 1: When Windows mounts a CIFS share with the same IP address (domain name or machine name), the same user can
You can mount one or more shares at the same time, but you cannot use different users to mount the same or different shares.
Description 2: Windows cannot share multiple Homedir shares with the same IP address (domain name or machine name)
The user mounts multiple shares.
The data center is an infrastructure built for accessing and carrying server services. According to the business, the data center can be
Divided into: (multiple choices)
What are the common time indicators for measuring the reliability of a system? (Multiple choice)
A, reliability
B.
EffectiveC.
Average failure timeD.
Mean time between failuresWhen the disk is not accessible, what kind of reconstruction method is used when writing to the disk?
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?
The number of erasable times of the storage medium cell of the SSD disk is limited. Multiple erasing causes the wear of the SSD, which also makes the SSD
Has a limited period of use, which is related to the number of specific erasures.
A, yes
B, wrong
The dual-controller storage system generally contains a mirror channel, and data written to the storage system cache will be written through the mirror channel
Into the peer controller.
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
Is the following description of cloud computing correct? (Multiple choice)
What are the following descriptions of the three iSCSI connection methods?
Remote replication requires master and slave storage from the same manufacturer.
Regarding the advantages of DAS, the following description is correct: (multiple choice)
The steps of asynchronous remote replication multi-point technology, is the following statement correct?
(1) A new time slice (T2, P2) is generated in the cache of the master LUN and the slave LUN at the start of each replication cycle
(2) The newly written data of the host is cached in the time slice T2 of the main LUN Cache, responding to the completion of the host
(3) The master and slave LUNs each release the received data
(4) Copy the data of time slice T1 directly to the slave LUN and write it to the time slice P2 of the slave LUN
Regarding the traditional model and cloud computing model, high reliability in the data center and cross-data center disaster recovery methods, the following says
What is wrong?
The following different types of SSD disks have the lowest unit capacity price:
A, SLC
B, eMLC
C, cMLC
D, TLC
TESTED 02 May 2024
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