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NEW QUESTION # 121
Which statements are true about RAID 2.0+? (Select All that Apply)
- A. An extent is a block of a fixed size in a chunk group (4 KB by default).
- B. A chunk group is a logical set of chunks on different disks.
- C. Chunks, which are blocks obtained by dividing each disk at a fixed size, are basic units of a RAID group
- D. A chunk group is the minimum unit for applying for and releasing space in a storage pool
Answer: A,C
NEW QUESTION # 122
What kind of technology does the OceanStor 5300 V3 expansion controller belong to?
- A. Scale-out
- B. Scale-deep
- C. Scale-in
- D. Scale-up
Answer: A
NEW QUESTION # 123
Taking Huawei OceanStor distributed storage as an example, which of the descriptions are correct about the storage interface layer in the software architecture? (Multiple Choice)
- A. Support SCSI and iSCSI interface protocols
- B. Support HDFS protocol
- C. Support IB protocol
- D. Support S3 and Swift protocol
Answer: A,B,D
NEW QUESTION # 124
Multipath software can only be used in IP-SAN.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
Analysis: It is also needed in the dual control of the low-end SAN/NAS converged storage architecture; FC SAN is also required.
NEW QUESTION # 125
A bank newly purchased a full-flash storage device (such as Huawei Ocean Stor full-flash memory), and the engineer initialized the device. Which of the following operations is correct?
- A. It is required to tolerate 2 data CHUNK failures, and configure the RAID strategy to RAID 5
- B. When creating hosts in batches, create 600 hosts at once
- C. When creating a LUN, configure the LUN as a Thick LUN
- D. When logging in to Device Manager, use port number 8088
Answer: D
NEW QUESTION # 126
A device has only one WWNN number, but it can have multiple WWPN numbers.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 127
Due to the earthquake, an enterprise's IT system went down at 16:00 on November 11th and the business was stopped. By 23:00 on that day, the IT system resumed operation, and the data at 12:00 on that day could be restored. Then this RTO What is the difference between RPO and RPO?
- A. RTO=4 hours, RPO=7 hours
- B. RTO=7 hours, RPO=3 hours
- C. RTO=7 hours, RPO=4 hours
- D. RTO=2 hours, RPO=4 hours
Answer: C
NEW QUESTION # 128
Development trend of cloud data center:
1. Business-driven distributed cloud data center
2. Distributed cloud data center
3. Enterprise chimney
4. Cloud data center
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 129
Which of the following descriptions are correct about SAN and NAS? (Multiple Choice)
- A. DAS, NAS, SAN are all external storage, so storage resource sharing can be easily realized
- B. SAN is more used in data scenarios to store structured
- C. NAS is characterized by putting the server file system in the storage so that the server needs to share data through the network
- D. Now NAS is geared towards unstructured data storage, such as many department employees for office files and centralized storage
Answer: B,C,D
NEW QUESTION # 130
The data backed up by the differential backup is relative to the data added and modified after the last full backup.
- A. False
- B. True
Answer: B
NEW QUESTION # 131
What statement is true?
- A. Information Life Cycle management must be based on the costs for the storage hardware.
- B. Technology is the main factor that decides which disaster recovery method will be implemented.
- C. IT managers should determine the retention period for data.
- D. Storing a lot of random, unstructured data can become a management problem for many companies.
Answer: A
NEW QUESTION # 132
Remote replication requires master and slave storage from the same manufacturer.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 133
When the RTO is 10 minutes the traditional Tape Backup method cannot be used.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 134
Statement 1: NAS solutions are always file based.
Statement 2: NAS solutions are mostly limited in distance because Ethernet cables are used.
- A. Statement 1 is false; Statement 2 is true.
- B. Statement 1 and 2 are false.
- C. Statement 1 and 2 are true.
- D. Statement 1 is true; Statement 2 is false.
Answer: C
NEW QUESTION # 135
The RTO in the metrics for disaster recovery systems refers to the point in time target requirements at which the system and data must be restored after a disaster occurs.
- A. False
- B. True
Answer: A
NEW QUESTION # 136
Huawei Ocenstor hybrid flash memory can only be expanded through PCIe Scale-out.
- A. False
- B. True
Answer: A
NEW QUESTION # 137
Which of the following descriptions about RAID technology is correct? (Multiple choice)
- A. The performance of all RAID levels increases linearly as the number of member disks increases
- B. Not every RAID technology can improve write performance
- C. In RAID 0, multiple hard drives are accessed at the same time (parallel access), speeding up data access performance
- D. Current RAID technology only uses parity check mechanism to protect data
Answer: B,C
NEW QUESTION # 138
Distributed storage uses system storage on the cloud and only provides object storage. If you need file storage, you need to purchase NAS equipment separately.
- A. False
- B. True
Answer: A
NEW QUESTION # 139
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
- A. Gateway NAS
- B. External NAS
- C. Unified NAS
- D. Internal NAS
Answer: A,C
Explanation:
Analysis: NAS mainly has three types of implementation: unified, gateway and scale-out. Unified NAS Use a unified storage platform to merge NAS-based and SAN-based data access, providing two rings that can be managed simultaneously Unified management interface of the environment. The gateway NAS uses external storage to access data. The management operations of the gateway NAS and storage are divided into It's open. Scale-out NAS can combine multiple nodes to form a clustered NAS system.
NEW QUESTION # 140
The SmartTier intelligent data grading feature requires three types of hard drives in the storage pool.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 141
What are the characteristics of big data? (Multiple choice)
- A. The value of data is uncertain
- B. Large capacity and fast growth rate
- C. Long storage time
- D. Write once, modify many times
Answer: A,B,C
NEW QUESTION # 142
Which of the following is the advantage of object storage? (Multiple choice)
- A. Flat objects, easy to access and expand
- B. Improve data integrity and security
- C. Object interface, flexible data segmentation
- D. External SCSI or file interface
Answer: A,B,C
NEW QUESTION # 143
The SCSI protocol can be used not only for communication between the host and the disk, but also for communication between the host and the physical tape library, optical disc, and so on.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 144
The advantages and disadvantages of disaster recovery technology at the host layer, network layer and array layer. Which of the following statements is correct? (Multiple choice)
- A. Disaster recovery at the array layer, the arrays at both ends must be products of the same manufacturer, which cannot solve the heterogeneous problem
- B. For host-level disaster recovery, host-level replication will occupy a certain amount of host resources, which will affect the application system
- C. The initial construction cost of network layer disaster recovery is relatively low, and there are more vendors that can provide solutions
- D. Disaster recovery at the host layer is implemented on the host side without considering the compatibility between the underlying devices
Answer: A,B,D
NEW QUESTION # 145
The new storage system has high I/O characteristics for the company's main business. When engineers design the hard disk domain, they plan the performance and high-performance tiers. Which hard disks does the company's main business correspond to?
- A. NL-SAS
- B. SSDS AS
- C. SAS , SATA 4 , SSD , NL-SAS
- D. SAS
Answer: B
NEW QUESTION # 146
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