QUESTION 161
An engineer can use the                  tool to install software for Huawei storage systems. This tool can collect and evaluate storage compatibility information in one-stop mode and supports batch installation of the UltraPath software, improving the software installation efficiency.

Correct Answer: SmartKit
QUESTION 162
Assume a financial customer purchases a Huawei OceanStor Pacific scale-out storage system for future service deployment. Which statement is false about software installation of the storage system?

A. During block service installation, if management nodes are deployed where compute and storage nodes are converged, the number of vCPUs on each converged compute and storage node must be greater than or equal to 20.
B. To install the Distributed Parallel Client (DPC), the memory required for running the DPC software on a compute node must be greater than or equal to 20 GB.
C. During block service installation, if converged deployment of storage and compute nodes is required, the difference between the disk quantities on any two nodes in the same storage pool cannot be greater than 2 or 30% of the disk quantity on the node having most disks.
D. If wizard-based software installation is used, an engineer must manually add nodes, configure networks, and create a control cluster on DeviceManager, and then install the OceanStor Pacific series software.

Correct Answer: A
QUESTION 163
Assume a bank customer purchased several OceanStor Dorado 18000 series storage devices and needs to install related hardware. Which of the following statements are true about storage hardware installation?

A. Generally, vacant slots in the cabinet must be covered with filler panels to ensure proper ventilation and neat appearance of the cabinet.
B. Generally, U-shaped supports can be stacked. In this case, a maximum of three U-shaped supports can be used on each side.
C. When installing adjustable guide rails, the customer usually needs to determine the installation positions. If there is no 1 U scale on the front and rear posts of the cabinet, the customer needs to mark the 1 U scale to facilitate device installation.
D. After the first power-on and initialization of the storage system, the controller enclosures can only be powered on remotely.

Correct Answer: AC
QUESTION 164

For the storage performance evaluation system, there are two performance testing benchmarks for SAN storage performance certification. Of the two benchmarks,                    is used to measure the SAN array performance in email and OLTP applications in scenarios where random small I/Os are quickly responded .

Correct Answer: SPC-1
QUESTION 165
Assume a government customer purchased several Huawei flash storage devices for service deployment. The service needs to read a large number of large files. In this scenario, an engineer can optimize host performance by increasing the value of the                            prefetch parameter in the Linux system to improve performance.

Correct Answer: read_ahead_kb
QUESTION 166
Assume a financial customer purchased a Huawei all-flash storage device for service deployment. During routine usage of the storage device, the administrator found that the storage device performance fluctuated greatly and checked the performance issue. Which of the following is not a performance fluctuation check item?

A. Whether the hit rate changes abruptly at the time when performance fluctuates
B. Whether obvious storage background tasks (such as data reconstruction) are ongoing at the time when performance fluctuates
C. Whether there are obvious hardware resource bottlenecks on the storage device at the time when performance fluctuates
D. Whether Smartkit runs abnormally at the time when performance fluctuates

Correct Answer: A
QUESTION 167
A storage system encounters CPU performance issues, such as slow response during system access, decreased QPs and TPS, and prolonged response time. Which of the following methods can be used to optimize performance?

A. Add system modules, such as front-end processors and parallel servers.
B. Reduce the data block buffer size.
C. Replace the current CPU with a more advanced CPU.
D. If there are multiple CPUs, allocate load among CPUs properly.

Correct Answer: ACD
QUESTION 168
User A finds that the Windows host runs slowly and the heat dissipation is poor when processing tasks requiring high compute capabilities. It is suspected that this issue is caused by host frequency reduction. In this case, user A can use the DirectX diagnostic tool to check whether the host frequency is reduced .

A. TRUE

B. FALSE

Correct Answer: A
QUESTION 169
If a performance issue occurs in Huawei flash storage, an engineer can perform optimization operations according to the storage performance optimization process. Which of the following statements is false about the performance optimization process?

A. In the optimization analysis phase, the engineer needs to specify the performance optimization objective, find out the performance bottleneck, and identify the parts that play a key role in improving the system performance.
B. In the information collection phase, the engineer needs to collect basic information about applications and data, such as the impact of application configurations on data, data size, and read/ write ratio.
C. In the optimization operation phase, the engineer needs to deploy DR for the service system, and needs to modify multiple configurations at a time during the optimization configuration.
D. In the test and application phase, the engineer needs to test the configurations to check whether the optimization objective is achieved. If yes, the engineer can put the system into use.

Correct Answer: C
QUESTION 170
If a firewall exists in the environment when you change the time of a storage device, you must enable ports 123 and 443 before configuring NTP automatic synchronization.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 171
Similar to the alarm analysis method, the replacement method can be used to locate and rectify any type of faults for Huawei converged storage, and has no special requirement for maintenance personnel.

A. TRUF
B. FALSE

Correct Answer: B
QUESTION 172
On DeviceManager, an engineer can view fault severities on the “Current Alarms’ page. Which of the following fault severities are contained on the page?

A. Critical
B. Information
C. Warning
D. Major

Correct Answer: ACD
QUESTION 173
A financial customer wants to configure the DME IQ service for routine management of flash storage. Before configuring the DME IQ service, the customer needs to enable the server ports of the DME IQ cloud system to ensure that the storage device can send HTTP requests to the DME IQ cloud system. Which of the following ports does not need to be enabled?

A. 8448/TCP
B. 7448/TCP
C. 9448/TCP
D. 8900/TCP

Correct Answer: D
QUESTION 174
Which of the following are prerequisites for configuring the connection between a storage system and a DNS server?

A. TCP/UDP ports 443 and 8890 between the storage system and DNS server are enabled.
B. The DNs server has been configured and is running properly.
C. The latency of the network between the storage system and DNS server is less than or equal to the configured latency.
D. TCP/UDP port 53 between the storage system and DNS server is enabled.

Correct Answer: BD
QUESTION 175
A school customer has purchased two Huawei flash storage devices and deployed them in different equipment rooms. To ensure data and service reliability, an engineer deploys the HyperReplication (remote replication) feature on the storage devices. After a fault recovery, the engineer needs to manually synchronize data to restore the pair relationship between the primary and secondary LUNs. What is the current running status of the remote replication pair?

A. Synchronizing
B. Normal
C. To be recovered

D. Split

Correct Answer: C
QUESTION 176
A financial customer has purchased a Huawei flash storage system for service deployment. An engineer configures the HyperCDP feature on the storage system and wants to create a HyperCDP schedule. Which of the following commands can the engineer use?

A. create fs hyper_cdp general
B. change hyper_cdp_schedule enabled
C. add hyper_cdp_schedule fs
D. create hyper_cdp_schedule general

Correct Answer: D
QUESTION 177
Huawei flash storage systems allow enter prises to cope with service changes by providing a variety of storage system expansion architectures. Which of the following statements about the architectures is false?

A. Scale-up is a traditional vertical expansion architecture where storage components are added into the existing storage system.
B. Peripheral Component Interconnect Express (PCIe) scale-out is an Ip-based scale-out technology that is widely used in OceanStor Dorado.
C. Scale-out is a horizontal expansion architecture based on nodes.
D. The entry-level and mid-range OceanStor V3 and V5 storage systems use an IP scale-out technology, while OceanStor 18000 V3 storage systems use a PCIe scale-out technology.

Correct Answer: B
QUESTION 178
A financial customer has purchased two Huawei flash storage devices and installed them in two equipment rooms of a local data center to deploy Hyper Metro services. During quorum server network planning, only 10GE quorum links can be used when a single quorum server is deployed. 25GE and Fibre Channel networks cannot be used .

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 179
A financial customer has purchased two OceanStor Dorado 18000 series storage devices for service deployment. To ensure service data reliability, an engineer

configures the Hyper Snap feature on the storage devices. Which of the following commands can the engineer use to change the snapshot rollback rate on the command line interface (CLI)?

A. show qos snapshot_flowctrl_lun
B. change snapshot speed
C. change snapshot flowctrl
D. change snapshot deactivate

Correct Answer: B
QUESTION 180
In actual production scenarios, the HyperMetro feature of Huawei converged storage ensures uninterrupted running of customers’ services. Which of the following statements is false about Hyper Metro?

A. The data, logs, and change information of a medium- or large-sized database are stored on different LUNs of a storage system. Placing these LUNs in a protection group (PG) and then creating a Hyper Metro consistency group for that PG can ensure data consistency in replication.
B. By default, when creating a Hyper Metro pair, the local storage system is set as the preferred site and the remote storage system as the non-preferred site.
C. If the quorum server is inaccessible, HyperMetro works in static priority mode. When an arbitration occurs, the preferred site wins the arbitration and provides services.
D. In cross-DC HyperMetro deployments involving long-distance transmission (a minimum of 25 km for IP networking and 80 km for Fibre Channel networking), dense wavelength division multiplexing devices must be used to ensure a low transmission latency.

Correct Answer: A