QUESTION 61
Information is data that is not processed, including data with context, relevance, and purpose.
A. TRUE
B. FALSE
Correct Answer: B
QUESTION 62
A NAS storage System has its own file system.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 63
Which of the following protocols uses remote direct memory access (RDMA) over UDP?
A. RoCE V2
B. InfiniBand
C. Fibre Channel
D. ROCE v1
Correct Answer: A
QUESTION 64
The disk endosure in the storage system connects to the controller enclosure and other disk enclosures through the system subrack.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 65
Which of the following statements is incorrect about SSDs?
A. An SSD consists of storage unit and a storage chip. It is the same as the common disk in terms of interface regulation and definition, functions, and usage.
B. SSDs use flash chips as the storage medium. Compared with HDDS, SSDs have no data search time, latency, or seek time.
C. The biggest drawback of SSDs is that they cannot be moved and data protection is subject to the power supply. Therefore, they are not applicable in all situations.
D. The SSD is short for solid-state drive.
Correct Answer: C
QUESTION 66
Which of the following RAID 50 scenarios may cause data loss?
A. Two disks in different RAID 5 groups fail at the same time.
B. Two disks in the same RAID 5 group fail at the same time.
C. Three disks in the same RAID 5 group fail.
D. Three disks in different RAID 5 groups fail at the same time.
Correct Answer: CD
QUESTION 67
Which of the following statements about IP SAN and FC SAN are correct?
A. The hardware and software costs of FC SAN disaster recovery are relatively high.
B. IP SAN can implement local and remote disaster recovery at a low cost.
C. FC SAN technologies and management are relatively complex.
D. Theoretically, there is no distance limit on IP SAN.
Correct Answer: ABCD
QUESTION 68
In Huawei RAID 2.0+, disk space allocated from a storage pool is divided into chunks of a specified physical size. A chunk is the basic unit of             .(Enter the abbreviation.)
Correct Answer: CKG
QUESTION 69
Scale-up and scale-out are two storage system capacity expansion methods. Which of the following statements about the two methods are correct?
A. Scale-up is generally used in cloud computing.
B. Scale-up mainly improves the performance of single node.
C. Scale-out increases management complexity.
D. Scale-out mainly increases the number of nodes.
Correct Answer: ABC
QUESTION 70
Compared with the SCSI protocol, which of the following is not an advantage of the storage FC network?
A. Improved scalability
B. High security
C. Lower cost
D. Increased transmission distance
Correct Answer: C
QUESTION 71
Which of the following statements about SAS cable connection principles are correct?
A. The line bandwidth limits the number of disks in a loop.
B. SAS devices are connected in the form of a loop.
C. Each SAS cable channel has 12 Gb/s bandwidth.
D. Generally, a SAS cable provides four channels.
Correct Answer: ABCD
QUESTION 72
The SCSI protocol is related to the transmission media and can be used for transmission only through specific media.
A. TRUE
B. FALSE
Correct Answer: B
QUESTION 73
Which of the following statements is correct about serial and parallel transmissions?
A. With fast speeds but high costs, parallel transmission is suitable for long-distance transmission.
B. With low speeds and low costs, parallel transmission is suitable for short-distance transmission.
C. With low speeds and low costs, serial transmission is suitable for long-distance transmission.
D. With fast speeds but high costs, serial transmission is suitable for short-distance transmission.
Correct Answer: C
QUESTION 74
Huawei NVMe-based all-flash storage arrays deliver the same efficiency as SAS-based all-flash storage arrays in terms of write request processing.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 75
The              protects storage system data by providing backup power in the event of an external power supply failure. (Enter an abbreviation.)
Correct Answer: BBU
QUESTION 76
Which of the following concepts are involved in Huawei RAID 2.0+?
A. Grain
B. Extent
C. CKG
D. CK
Correct Answer: ABCD
QUESTION 77
Which of the following protocols is commonly used in SAN networking?
A. iSCSI
B. CIFS
C. NFS
D. FTTP
Correct Answer: A
QUESTION 78
In RAID 2.0+, which of the following is the minimum granularity to allocate storage space in thin LUN mode?
A. Chunk
B. Grain
C. Extent
D. Chunk Group
Correct Answer: B
QUESTION 79
The mirroring function of RAID is superior to the parity check function in terms of storage space utilization and data security.
A. TRUE
B. FALSE
Correct Answer: B
QUESTION 80
Which of the following interface modules are used for scale-out connections for OceanStor Dorado V6?
A. 100 Gbit/s RDMA
B. 40GE
C. 100GE
D. 25 Gbit/s RDMA
Correct Answer: B