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NEW QUESTION 245
What kind of technology does the OceanStor 5300 V3 expansion controller belong to?
- A. Scale-deep
- B. Scale-up
- C. Scale-out
- D. Scale-in
Answer: C
NEW QUESTION 246
When does data become information?
- A. When the data has been verified to be correct
- B. When the company understands the meaning of the data and extracts the content needed for decision-making from it
- C. When the data has been stored in digital form
- D. When it has been stored in the correct file format
Answer: B
NEW QUESTION 247
Which is wrong about the Huawei Oceanstor all-flash storage system?
- A. When creating a LUN, plan the ownership of the LUN to achieve load balancing of the controllers in the system
- B. The data of each LUN is evenly distributed to the cache of all nodes
- C. A front-end intelligent shared IO module can be provided, and the host IO can be divided and sliced into LUNs and sent directly to the corresponding target controller
- D. The caches of all controller nodes together form a global cache
Answer: A
NEW QUESTION 248
When writing 500 bytes of data for RAID 3, if the sector size of the mechanical hard disk in the RAID group is 512 bytes, because the amount of written data is small, data verification is not required.
- A. False
- B. True
Answer: A
NEW QUESTION 249
For random accessing to mechanical disks, the biggest impact on the time taken to complete an IO is:
- A. Seek time
- B. Data transfer time
- C. Rotation delay
Answer: A
NEW QUESTION 250
Statement 1: A RAID composed of several hard disks is called a physical volume.
Statement 2: RAID 5 can increase the read and write speed and provide a certain degree of data security, but when a single hard disk fails, the read and write performance will be greatly reduced.
- A. Statement 1 is correct, Statement 2 is correct.
- B. Statement 1 is wrong, Statement 2 is wrong.
- C. Statement 1 is correct, Statement 2 is wrong.
- D. Statement 1 is wrong, Statement 2 is correct.
Answer: D
NEW QUESTION 251
With NV Me standard, 0PCle, SSD can use native PCIe to directly connect to CPU, which can reduce the delay caused by external controller (such as SATA/sas) and CPU.
- A. True
- B. False
Answer: A
NEW QUESTION 252
The control frame is one of the core components in storage, mainly including control modules, BBU modules, power modules, management modules, interfaces, etc.
- A. True
- B. False
Answer: A
NEW QUESTION 253
A user of a company can automatically report the alarms of connected storage devices to the Huawei Service Support Center through a piece of management software.
So, which software is this user using?
- A. Toolkit
- B. CLI management interface
- C. eService
- D. Device Manager
Answer: C
NEW QUESTION 254
Regarding the characteristics of the LAN-BASED backup method, which of the following is incorrect?
- A. The backup agent will affect the performance of the application server
- B. The backup data is based on LAN, which affects network performance
- C. The instruction flow passes through the LAN network, and the data flow does not pass through the LAN network
- D. The backup business needs to be maintained separately, which increases the difficulty of management and maintenance
Answer: C
NEW QUESTION 255
Which of the following RAID levels requires at least 4 hard drives?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 256
Which of the following statements about the filtering function of the storage system CLI commands is wrong?
- A. show hbu general | firter column list=Inter/SID The include meaning is to filter information that does not need to be displayed
- B. Use the filter row command to filter
- C. The filtering function of CLI commands can remove redundant information and display valid information on demand
- D. Use the filter column command to filter
Answer: A
NEW QUESTION 257
Regarding the steps of SAN synchronous replication, which of the following is in the correct order?
(1) The production storage receives the host write request. Hyper Replication logs the request. Only the address information is recorded in the log, and the data content is not recorded.
(2) Hyper Replication waits for the write processing results of the primary LUN and the secondary LUN to return. If all writes are successful, clear the log; otherwise, keep the log and enter the abnormal disconnection state, and then re-copy the data block corresponding to the log address when synchronization is started.
(3) Write the request to the primary LUN and secondary LUN. Normally, the LUN is in the write-back state, and data is written to the Cache.
(4) Return the processing result of the host write request, subject to the processing result of the write master LUN.
- A. ( 1 )( 3 )( 2 )( 4 )
- B. ( 4 )( 2 )( 3 )( 1 )
- C. ( 1 )( 2 )( 3 )( 4 )
- D. ( 2 )( 1 )( 3 )( 4 )
Answer: A
NEW QUESTION 258
Which of the following descriptions of distributed storage are correct? (Multiple Choice)
- A. Can support large-scale horizontal expansion
- B. Realize storage resource pooling and virtualization
- C. Does not support elastic EC data redundancy protection
- D. Expansion in units of nodes, increasing computing power and storage space simultaneously
Answer: A,B,D
NEW QUESTION 259
What are the data protection methods of RAID? (Multiple Choice)
- A. JBOD
- B. Data striping method
- C. Mirror
- D. Parity check algorithm
Answer: C,D
NEW QUESTION 260
Which one of the following options is stored in a narrow-sense storage?
- A. Tape library
- B. Disk
- C. Disk array
- D. Disk cabinet
Answer: B
NEW QUESTION 261
Which three data centers refers to 3DC in the disaster recovery solution? (Multiple choice)
- A. Remote disaster recovery center
- B. Data Center
- C. Production Center
- D. City Disaster Recovery Center
Answer: A,C,D
NEW QUESTION 262
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