Online Access Free Huawei.H13-624.v2022-03-14.q212 Practice Test (Page 10)

H13-624 Exam Question 41

The three elements of the CAP principle of a distributed database system are: Consistency, Availability, and Partition tolerance.
Regarding the three elements of CAP that the database follows, which of the following descriptions are correct? (Multiple choice)

A.In a distributed system, these three elements can only achieve two points at the same time at most, and it is impossible to give consideration to all three.

B.For distributed data systems, partition tolerance is a basic requirement

C.For most web application databases, they follow the CPA principle. In design, consistency is usually sacrificed in exchange for high availability. Partition tolerance of traditional relational databases is a basic requirement.

H13-624 Exam Question 42

Regarding the principle of Erasure Code N+M redundancy technology implemented in Oceanstor 9000, which one of the following descriptions is wrong?

A.Oceanstor 9000 system can configure different data protection levels for different directories/files.

B.The utilization of the protected data space is about N/(N+M), and the reliability of the data is determined by the value of M. The larger the M, the higher the reliability.

C.For every N chunks, calculate the parity block of M chunks according to the ErasureCode algorithm.

D.The data written into the Oceanstor 9000 system will split Chunk according to the size.

H13-624 Exam Question 43

When RAID2.0+ is used, what is the default size of a chunk on a SAS disk?

A.256 MB

B.512 MB

C.64 MB

D.64 KB

H13-624 Exam Question 44

Compared with traditional RAID algorithms, the erasure code redundancy technology used by Huawei OceanStor 9000 provides higher reliability and more flexible redundancy policies.
Which of the following statements about the erasure code N+M principle is false?

A.N+M data blocks are concurrently stored to different disks.

B.The erasure code algorithm calculates M parity blocks for every N consecutive data blocks. (The value of M is smaller than that of N.)

C.In erasure code storage mode, the storage system tolerates a concurrent failure of N disks at most.

D.Data to be written is divided into N data blocks of the same size.

H13-624 Exam Question 45

It is a necessary step to create a consistency group in Huawei's active-standby disaster recovery solution.

A.True

B.False

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H13-624 Exam Question 41

H13-624 Exam Question 42

H13-624 Exam Question 43

H13-624 Exam Question 44

H13-624 Exam Question 45

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