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質問 1：
The peak write bandwidth for an application is 10MB / S, with an average write latency of 200KB / s and anaverage write IO size of 4KB (bandwidth utilization of 70%).
If you need to use OceanStor V3 storage array to implement data disaster recovery and set it as asynchronous replication mode, you need the minimum network-wide bandwidth of which of the following?
A. 128Mbps
B. 114 Mbps
C. 18 Mbps
D. 3.2Mbps
正解：D
質問 2：
Huawei HyperMetro active-active disaster recovery supports heterogeneous storage. Therefore, an OceanStor V3 storage system and a Huawei certified third-party storage system can work in active-active mode based on HyperMetro.
A. TRUE
B. FALSE
正解：A
質問 3：
Mainstream virtualization technologies include hardware virtualization (Hypervisors) and operating system virtualization (Containers). Which are key characteristics of hardware virtualization?
(Multiple Choice)
A. A VM encapsulates the entire system into one or more files.
B. Multiple VMs simultaneously run on a single physical server.
C. VMs on the same server are isolated from each other.
D. A VM on one server can run on another server without any modification.
正解：A,B,C
質問 4：
In the Huawei OceanStor storage array, the write cache high watermark is 80 and the low watermark is 20, and the service type is multiple-order small IO. To achieve better performance,it is advisable to adjust the water marks in which way?
A. low water line 10
B. high water to 90
C. high water to 70
D. low water line 30
正解：C
質問 5：
Which of the following are correct regarding a Storage ArrayRAID 2.0 Typical Application Performance Tuning? (multiple choice)
A. scene: the order of pressure reading and writing business conditions, high utilization of hard drivesTuning means: increase the unplug-thresh device hard disk device
B. Scenario: Oracle database in the operation ofdata backup, the data on the LUN bandwidth does not meet the requirements and accompanied by high utilization of hard diskTuning means: the formal creation of POOL to increase the depth of the points
C. Scenario: In the case of single concurrent or low concurrent read service, the delay is found to be largeTuning means: change disk unplug 8 Modify unplug - thresh increased from 4 to 8
D. Scenario: Sequencing large IO services, especially 1M IO scenarios, with the phenomenon that the back-end read bandwidth is much larger than the front-end read bandwidthTuning: Turn offthe corresponding LUN prefetch policy
正解：A,B,D
質問 6：
The design of Oracle database system should give attention to both performance and data reliability. Which reliability designs will reduce the performance of Oracle?
(Multiple Choice)
A. Multi mirror log group
B. Frequent CheckPoint
C. Archive Mode
D. Using Oracle RAC
正解：A,B,C
The peak write bandwidth for an application is 10MB / S, with an average write latency of 200KB / s and anaverage write IO size of 4KB (bandwidth utilization of 70%).
If you need to use OceanStor V3 storage array to implement data disaster recovery and set it as asynchronous replication mode, you need the minimum network-wide bandwidth of which of the following?
A. 128Mbps
B. 114 Mbps
C. 18 Mbps
D. 3.2Mbps
正解：D
質問 2：
Huawei HyperMetro active-active disaster recovery supports heterogeneous storage. Therefore, an OceanStor V3 storage system and a Huawei certified third-party storage system can work in active-active mode based on HyperMetro.
A. TRUE
B. FALSE
正解：A
質問 3：
Mainstream virtualization technologies include hardware virtualization (Hypervisors) and operating system virtualization (Containers). Which are key characteristics of hardware virtualization?
(Multiple Choice)
A. A VM encapsulates the entire system into one or more files.
B. Multiple VMs simultaneously run on a single physical server.
C. VMs on the same server are isolated from each other.
D. A VM on one server can run on another server without any modification.
正解：A,B,C
質問 4：
In the Huawei OceanStor storage array, the write cache high watermark is 80 and the low watermark is 20, and the service type is multiple-order small IO. To achieve better performance,it is advisable to adjust the water marks in which way?
A. low water line 10
B. high water to 90
C. high water to 70
D. low water line 30
正解：C
質問 5：
Which of the following are correct regarding a Storage ArrayRAID 2.0 Typical Application Performance Tuning? (multiple choice)
A. scene: the order of pressure reading and writing business conditions, high utilization of hard drivesTuning means: increase the unplug-thresh device hard disk device
B. Scenario: Oracle database in the operation ofdata backup, the data on the LUN bandwidth does not meet the requirements and accompanied by high utilization of hard diskTuning means: the formal creation of POOL to increase the depth of the points
C. Scenario: In the case of single concurrent or low concurrent read service, the delay is found to be largeTuning means: change disk unplug 8 Modify unplug - thresh increased from 4 to 8
D. Scenario: Sequencing large IO services, especially 1M IO scenarios, with the phenomenon that the back-end read bandwidth is much larger than the front-end read bandwidthTuning: Turn offthe corresponding LUN prefetch policy
正解：A,B,D
質問 6：
The design of Oracle database system should give attention to both performance and data reliability. Which reliability designs will reduce the performance of Oracle?
(Multiple Choice)
A. Multi mirror log group
B. Frequent CheckPoint
C. Archive Mode
D. Using Oracle RAC
正解：A,B,C
山本** -
本当に良い問題集です。ほぼ全問が出題され、合格できました。
ありがとうございます！！