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Huawei H13-624_V5.5 Exam Syllabus Topics:

Section	Objectives
Topic 1: Storage System O&M Management	– System monitoring – Health checks – Daily operational management of Huawei storage systems – Proactive maintenance – Troubleshooting and fault handling – Efficient use of Huawei’s O&M tools
Topic 2: Flash Storage and Scale-Out Storage	– Technical principles – Software and hardware deployment methods – Software and hardware architectures – Functions and application scenarios – Performance test analysis and optimization – Typical application scenarios – Storage system troubleshooting processes and methods – Usage of storage O&M tools
Topic 3: Basic Storage Technologies	– Storage architecture fundamentals – Storage types comparison – Storage networking – Data protection mechanisms – RAID levels – Data protocols – SAN and NAS environments – I/O performance concepts
Topic 4: Huawei Intelligent Storage Products and Features	– Huawei-specific technologies – Product models – Storage tuning – Huawei storage solutions – Advanced features – Resource optimization – System operations – Data protection – Management interfaces

NO.100 When configuring basic storage services on Huawei all-flash storage, which of the following statements are correct ()

When user application data is stored in multiple LUNs, LUN groups can be created to facilitate management

Before configuring basic services, you must first import the license

If the business host is a cluster, add all the hosts in the cluster to the same host group

If you need to specify a specific port to connect to a certain business host, you need to create a port group to complete the relevant operations

NO.101 Adjust the TCP parameters of LINUX clients accessing Huawei Oceanstor 9000 cluster to improve access performance.
Under the network, it is recommended to increase the size of the TCP sending and receiving buffer area to the following value, net.ipv4.tcp_rmem=’4000000 8000000
16000000’net.ipv4+tcp_wmem=’4000000 8000000 16000000′

True

False

NO.102 In the system initialization process of Huawei flash storage, engineers can manage storage by setting multiple user roles. Which of the following user roles have control permissions for storage? (Multiple choice)

Super Administrator

Read-only user

USM users

Administrator

NO.103 During the use of Huawei flash storage, an engineer wants to calculate the valid write bandwidth of disks.
Which of the following formulas can calculate disk valid write bandwidth?

Valid read bandwidth of disks = Read bandwidth of a single disk x Number of disks x (Number of system disks / Total number of disks)

Valid write bandwidth of disks = Write bandwidth of a single disk x Number of disks

Valid write bandwidth of disks = Write bandwidth of a single disk x Number of disks x (Number of data disks / Total number of disks)

Valid write bandwidth of disks = Bandwidth of a single port x Number of ports

NO.104 The phone is accessing the LINUX client of the Oceanstor 9000 cluster, which can appropriately reduce the number of concurrent NFS on the client.
To improve access performance

True

wrong

NO.105 In OceanStor Pacific series storage systems, if a node or disk is faulty, data reconstruction in the disk pool can be automatically performed after 15 minutes.

TRUE

FALSE

NO.106 The SmartQoS feature of Huawei OceanStor Pacific series products supports the burst function.
When services require burst performance, for example, processing high-concurrency or high- bandwidth services, the QoS policy can greatly increase the number of read and write operations per second within a certain period of time.

TRUE

FALSE

NO.107 The backup management system includes backup management software and backup management server.
Which of the following items can be managed? (multiple choice)

Backup network

Backup strategy

Read data from the backup client

Write data to backup media

NO.108 When deploying OceanStor 9000 through the deployment tool, the IP entered in the “IP address range” in the
“DHCP configuration” area
The address is only used temporarily during the deployment process. After the deployment is successful, the IP address of each node is modified to the IP address planned in the configuration file

True

mistake

NO.109 Which of the following statements are false about direct TCP offload engine (DTOE) 1.0?

This technology requires CPU to process each MAC frame, which will consume a large number of CPU resources.

This technology allows to directly operate the hardware queue in the user mode, avoiding the context switching overhead.

This technology uses the polling mode, reducing the latency.

High latency overhead still exists using the technology, such as kernel mode interrupts, locks, system calls, and thread switching.

NO.110 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.

TRUE

FALSE

NO.111 Multiple choices The business characteristics of Huawei Oceanstor 9000NFS are correct: (multiple choices for this question)

Compatible with multiple operating systems, can realize file resource sharing in a heterogeneous network environment

After node B fails, the client business connected to this node quickly switches to other nodes to take over, and the business is not interrupted

Provide shared services externally in a cluster mode, and nodes can monitor each other’s service status

can realize load balancing according to business and node status, and data access is evenly distributed in the cluster

Oceanstor 9000 supports NFSv3 and v4 protocols

NO.112 The single-choice NAS system focuses on storing and managing which of the following types of data?

large block of data

file data

small message

continuous data block

NO.113 Assume a financial customer purchased six nodes of Huawei scale-out storage, including two compute nodes and four storage nodes. The service, storage, and management switches are deployed independently. An engineer needs to plan ports for 25GE switches. Which of the following statements is false about port planning?

To plan node ports, each switch can use four to six 25GE ports to connect to compute nodes and storage nodes in sequence.

During port planning, ports can be reserved. To disable the reserved ports, run the “shutdown” command.

Aggregation ports do not need to be planned, but eight MGT ports should be planned to connect to the BMC/management switches.

To plan Multichassis Link Aggregation Group (M-LAG) ports, each switch support two 100GE ports configured in M-LAG mode.

NO.114 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.

TRUE

FALSE

NO.115 A financial customer purchases several Huawel OceanStor Dorado series storage devices for service deployment. During a maintenance process, an engineer needs to use DeviceManager to collect disk health analysis (DHA) logs. Which of the following is not Included in DHA logs?

I/O statistics

Routine disk health statistics

Device latency statistics

Disk life span information

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