Free Huawei H13-624_V5.5 Exam Dumps Questions & Answers

When optimizing Huawei flash storage, an engineer will consider the cache prefetch policy.
Which of the following is not a cache prefetch policy type?

• A.  Constant prefetch
• B.  Smart prefetch
• C.  Non-prefetch
• D.  Elastic prefetch

During the running of Huawei OceanStor Dorado series storage, a customer finds that the
"OutOfMemoryError" error is recorded in application logs and the FULL GC alarm is recorded in GC logs. Which of the following is not a cause for this performance issue?

• A.  Collection classes reference objects, which are not released after use. As a result, Java virtual machines (JVMs) cannot be reclaimed.
• B.  The memory value of the startup parameter is too small.
• C.  There are too many threads and the context is switched too frequently.
• D.  An infinite loop exists in the code.

The backup and archiving scenario mainly involves sequential read of large I/Os, where there are more read I/Os than write I/Os and hot data areas are obvious. The service characteristics of this scenario are the same as those of the database OLAP scenario.

• A.  TRUE
• B.  FALSE

When deploying a Huawei converged storage system, engineer A uses the UltraPath software.
Which of the following statements are false about the load balancing algorithms of UltraPath?
(Choose all that apply.)

• A.  The algorithms fall into three types: min-queue-depth, round-robin, and min-task.
• B.  Round-robin is a min-task algorithm and can be used in scenarios where service I/O model data blocks delivered by the host are large.
• C.  The min-queue-depth algorithm refers to the minimum queue depth algorithm. UltraPath is configured with this algorithm by default.
• D.  The min-task algorithm is a round robin algorithm and can be used in scenarios where the service I/O models delivered by the host have little difference.

A government customer has purchased multiple Huawei OceanStor Dorado storage devices for HyperMetro service deployment. Which of the following statements are true about the HyperMetro feature of the flash storage devices? (Choose all that apply.)

• A.  In HyperMetro configurations, a consistency group ensures consistent read and write control policies among multiple LUNs.
• B.  In a write I/O process, to prevent conflicts when two storage systems receive a write request at the same time to modify the same data block, a lock mechanism is used so that data can be written only to the storage system allowed by the lock mechanism.
• C.  In dual quorum server mode, if the active quorum server is faulty, the HyperMetro pair is in the to- be-synchronized state.
• D.  Before configuring a HyperMetro domain, HyperMetro pairs must be configured because HyperMetro pairs must be created in LUN groups.