QUESTION 101
A financial customer purchases Huawei OceanStor Pacific 9950 for service deployment. During a routine inspection, an engineer finds that a main storage disk of the device is faulty and uses SmartKit to replace it. Which of the following statements is true about replacing the disk?
A. The interval between removing the faulty disk and inserting a normal one is at least 10 seconds. Otherwise, the disk may be damaged.
B. When removing the disk, the engineer needs to remove it from its connector, wait at least 60 seconds, and then remove the disk from the chassis.
C. The duration from removing the main storage disk to installing a normal one on the node cannot exceed 10 minutes. Otherwise, heat dissipation of the storage device will be affected.
D. Before using SmartKit to replace the disk, the engineer needs to complete the pre-processing as prompted. After that, the engineer can continue the subsequent operations.
Correct Answer: D
QUESTION 102
An industry customer purchases a Huawei flash storage device for routine service deployment. During a service provisioning process, a controller fault occurs on the storage device, and engineers need to handle the fault. Which of the following statements are true about the emergency handling?
A. The emergency handling process is similar to the common troubleshooting process. The only difference is that the emergency handling takes less time.
B. During the emergency handling, engineers need to start an emergency plan and then collect the fault information.
C. During the emergency handling, engineers need to record emergency handling information, such as fault information and handling procedures.
D. During the emergency handling, engineers need to refer to the troubleshooting manual to rectify the fault.
Correct Answer: BC
QUESTION 103
An engineer found that a Fibre Channel (FC) front-end port of flash storage was abnormal on DeviceManager: “Health Status” of the port was displayed as “–” and “Running Status” was displayed as “Disconnected”. After arriving at the site, the engineer detected that the link indicator of the FC front-end port was steady red.
Which of the following are the possible causes?
A. The IP address of the iSCSI host port is incorrect.
B. The latest service Pack (SP) patch is not installed on the Windows operating system.
C. The optical module is faulty.
D. The optical module type is incompatible with the host port.
Correct Answer: CD
QUESTION 104
In Huawei flash storage, an administrator is a built-in role that can manage users, upgrade the system, change the system time, power off the device, and restart the device.
A. TRUE
B. FALSE
Correct Answer: B
QUESTION 105
An industry customer purchases several Huawei flash storage devices for service deployment. During an inspection, an engineer finds that the power indicator of a controller on a storage device is blinking green, which means that the controller is not detected.
A. TRUE
B. FALSE
Correct Answer: B
QUESTION 106
A government customer has purchased several Huawei scale-out storage devices, and an engineer wants to install the distributed parallel client (DPC). When creating DPC nodes, the engineer can manually add a node by entering the service IP address of the node.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 107
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?
A. In dual-quorum-server mode, if the active quorum server is faulty, the HyperMetro pair is in the to-be-synchronized state.
B. In HyperMetro configurations, a consistency group ensures consistent read and write control policies among multiple LUNs.
C. Before configuring a HyperMetro domain, HyperMetro pairs must be configured because HyperMetro pairs must be created in LUN groups.
D. 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.
Correct Answer: BD
QUESTION 108
In scale-out storage, the erasure code (EC) mechanism provides good redundancy protection for data. Which of the following statements are false about the EC mechanism?
A. During capacity expansion, if the current disk pool supports a higher EC redundancy ratio, the value of N can be increased for the disk pool after services are stopped.
B. In node-level security scenarios, if the number of storage nodes after capacity expansion is greater than or equal to N + M, the system will automatically unfold N+ M:1 to N + M in the background.
C. The node-level security layout has the highest space utilization, the disks on a faulty node can be taken over by a normal node, and the fault impact scope is smaller.
D. In node-level security scenarios, if the number of storage nodes is greater than or equal to N + M, an N + M redundancy ratio is used. If the number of storage nodes is greater than or equal to (N + M)/M and less than N + M, an N + M:1 redundancy ratio is used.
Correct Answer: AC
QUESTION 109
Huawei OceanStor Pacific series products provide the subhealth management technology. Which of the following are covered by this technology?
A. Processes
B. Disks
C. Networks
D. Processors
Correct Answer: ABC
QUESTION 110
A company has purchased several Huawei converged storage devices to deploy remote replication services. In this service scenario, if a primary LUN is faulty and services need to be recovered, the administrator needs to disable protection for the secondary resource in the remote replication pair, that is, manually set the secondary LUN to writable.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 111
In Huawei backup storage OceanProtect x3000, data reduction supports fixed-length deduplication by default, but does not support variable-length deduplication. Therefore, fixed-length deduplication is mainly used in the backup field.
A. TRUF
B. FALSE
Correct Answer: B
QUESTION 112
A customer has purchased several Huawei OceanStor Dorado series storage devices to deploy HyperMetro services and discovers that HyperMetro pairs have many service states. Which of the following is not a common status of a HyperMetro pair?
A. To be synchronized
B. Normal
C. Forcible synchronization
D. Paused
Correct Answer: C
QUESTION 113
An industry customer purchased two OceanStor Dorado 18000 series storage systems for service deployment. To ensure high service reliability, an engineer configured the HyperMetro feature on the storage systems. The arbitration mode is static priority mode, and storage A is the preferred site and storage B is the non-preferred site. If the link between storage A and storage B is down, what is the arbitration result?
A. The host cannot access the LUNs of storage A and storage B.
B. The LUNs of storage A continue providing services, while the LUNs of storage B stop providing services.
C. The LUNs of storage A are inaccessible, and the LUNs of storage B stop providing services.
D. LUNs of storage A and storage B continue providing services.
Correct Answer: B
QUESTION 114
Huawei Ocean Stor Dorado series storage systems use the SAN/NAS integration design. From bottom to top, the architecture consists of the following layers: protocol, data service, cache, file and block space management, and storage pool.
A. TRUE
B. FALSE
Correct Answer: A
QUESTION 115
On the live network, if the primary LUN of a remote replication pair is fatuity, the pair relationship between the primary LUN and the secondary LUN is interrupted. In this case, the pair running status must be “To be recovered”
A. TRUF
B. FALSE
Correct Answer: A
QUESTION 116
Silent data corruption means that errors generated during data transmission cannot be detected immediately. Instead, the errors are detected in subsequent data check and access. Which of the following may be the software causes of silent data corruption?
A. Application bug
B. System software bug
C. Data transmission link error
D. Memory or CPU hardware error
Correct Answer: ABD
QUESTION 117
An enterprise customer has purchased a Huawei OceanStor Pacific scale-out storage system for service configuration. An engineer wants to deploy the NFS file sharing service on the storage system and configure the HyperReplication feature. Which of the following configuration operations are correct?
A. When configuring Hyper Replication, the engineer needs to configure the replication network route information on the primary storage system. The replication network route does not need to be configured on the secondary storage system.
B. After a converged storage pool is created, the engineer needs to enable the file service. The HDFS or object service does not have to be enabled.
C. To use the NFSv4.0 protocol for share access, the engineer can run the “change service nfs_config nfsv4.0_status=enable account_name=?” command to enable the NFSv4.0 service.
D. When configuring HyperReplication, the engineer needs to create a remote replication pair on both the primary and secondary storage systems and then add a remote device.
Correct Answer: BC
QUESTION 118
A financial customer has purchased several Huawei OceanStor Pacific 9550 storage systems. When configuring basic object services on the storage systems, an engineer discovers that the object service cannot be enabled for storage nodes. Which of the following is not a possible cause?
A. Namespaces with the same name have been created under the same account.
B. NTP synchronization is not configured for the cluster, and different NTP time sources are used.
C. The Network Time Protocol (NTP) clock in the storage cluster is inconsistent with the clock of the client that accesses object services.
D. The engineer has manually adjusted the time of the cluster nodes. As a result, the conflict handling is different.
Correct Answer: A
QUESTION 119
Huawei scale-out storage supports multiple features to meet enterprises’ service requirements. Which of the following features can improve storage space utilization?
A. Custom metadata retrieval
B. Performance acceleration
C. Deduplication and compression
D. Snapshot
Correct Answer: C
QUESTION 120
An airport customer has purchased several Huawei OceanStor Pacific scale-out storage devices for service deployment. To ensure service reliability, an engineer has configured the HyperReplication feature on the storage devices and established a remote replication pair between the namespaces of the primary and secondary storage systems. Which of the following statements is true about the running statuses of the remote replication pair?
A. If the running status of the remote replication pair is “Split’, this indicates that the remote replication link is down or an internal I/O error has occurred. In this case, the pair cannot be synchronized or deleted.
B. If the running status of the remote replication pair is ” Synchronizing”‘, this indicates that data is being synchronized from the primary namespace to the secondary namespace. In this case, the engineer can enable the protection for secondary resources on the secondary storage system.
C. If the running status of the remote replication pair is “To be recovered鈥? this indicates that the internal I/O error of the remote replication pair has been rectified. Data consistency between the primary and secondary storage systems is guaranteed by automatic synchronization.
D. If the running status of the remote replication pair is “Interrupted”, this indicates that an internal I/O error has occurred or the remote replication link is down. As a result, the pair relationship is interrupted.
Correct Answer: D