Bank A purchased Huawei's hybrid flash storage, which uses encrypted hard disk technology to enhance business data The security, which of the following statements are correct ()

nternal Key Manager is a key management application embedded in the storage system

The encrypted hard disk technology uses the AES256 encryption algorithm to ensure that the data stored on the disk is encrypted , And guarantee no impact on performance

External Key Manager adopts KMIP+TLS standard protocol

nternal Key Manager is a key management application embedded in the storage system

The encrypted hard disk technology uses the AES256 encryption algorithm to ensure that the data stored on the disk is encrypted , And guarantee no impact on performance

OceanStor 18000/18000FV5 supports TPM for key protection

In the Huawei storage system, which of the following statements about rolling back HyperCDP are correct ()

In order to ensure data consistency, the host business needs to be suspended before HyperCDP is rolled back

When the source LUN of HyperCDP is also the primary LUN or secondary LUN of remote replication, you need to The HyperCDP rollback operation can only be performed after the remote replication pair status becomes "split"

In order to ensure data consistency, the host business needs to be suspended before HyperCDP is rolled back

HyperCDP needs to be in the active state to perform the rollback operation

When the source LUN of HyperCDP is also the primary LUN or secondary LUN of remote replication, you need to The HyperCDP rollback operation can only be performed after the remote replication pair status becomes "split"

For a source LUN with multiple HperCDPs, multiple HperCDPs can be executed at the same time HyperCDP rollback operation

Regarding the global deduplication technology adopted by the block service, which descriptions are correct for multiple choices ()

Filter data that is not highly repetitive through the opportunity table

The fingerprint of the data block enters the opportunity table count first, and only the same data block is written to the threshold multiple times before it can enter the fingerprint table to perform deduplication

The distributed storage space is huge. In order to reduce the memory space consumption of the fingerprint table, the mechanism of the fingerprint opportunity table is introduced

The fingerprint table has a small memory footprint, which can support the deduplication of a larger capacity system

Filter data that is not highly repetitive through the opportunity table

The fingerprint of the data block enters the opportunity table count first, and only the same data block is written to the threshold multiple times before it can enter the fingerprint table to perform deduplication

The distributed storage space is huge. In order to reduce the memory space consumption of the fingerprint table, the mechanism of the fingerprint opportunity table is introduced

The fingerprint table has a small memory footprint, which can support the deduplication of a larger capacity system

Which of the following options are the shortcomings of HDFS components?

Remote replication feature is not supported

Low capacity utilization and high cost

Remote replication feature is not supported

File system performance bottlenecks are likely to occur under large-scale deployment

Low capacity utilization and high cost

The game live broadcast platform A uses Huawei's all-flash storage to protect its business, and the storage system uses a storage system designed for flash memory.FlashLink technology. Regarding the many-core technology, which of the following statements are correct

Through many-core technology, storage device performance can increase linearly with the number of CPUs and cores

Read and write I/O and other I/O are deployed in different groups to avoid mutual interference

Through many-core technology, storage device performance can increase linearly with the number of CPUs and cores

vnode is bound to the CPU to reduce the overhead of cross-CPU scheduling and cross-CPU transmission

A request is continuously executed on the same core and a lock-free design is implemented to avoid frequent multi-core switching

Read and write I/O and other I/O are deployed in different groups to avoid mutual interference

The remote replication feature is mainly used in disaster recovery and backup scenarios. Which of the following statements about the remote replication feature is correct:

The remote replication slave LUN can be mapped to the host in advance. When the primary L-end fails, it can save business recovery time.

If the disaster recovery solution requires RPO=0, it is recommended to use synchronous remote replication.

During the remote replication process, if the replication link fails suddenly, the slave L data will be unavailable.

The remote replication slave LUN can be mapped to the host in advance. When the primary L-end fails, it can save business recovery time.

The peak bandwidth of asynchronous replication is higher than that of synchronous replication.

If the disaster recovery solution requires RPO=0, it is recommended to use synchronous remote replication.

Which of the following options describes the single-choice feature of Huawei Distributed Storage Intelligent Load Balancing incorrectly?

When automatic load balancing is performed between all nodes, only performance load balancing is supported, and capacity load balancing is not supported.

Nodes can be classified as required. For each partition, the load balancing system supports the configuration of independent load strategies and independent access domain name.

When automatic load balancing is performed between all nodes, only performance load balancing is supported, and capacity load balancing is not supported.

Load balancing strategy can be based on: CPU, memory, bandwidth, number of network connections, node capability value.

Load average street service support: polling mode, CPU usage rate, number of node connections.

When planning and designing storage solutions, if customers pay attention to the satisfaction of performance, which of the following aspects should be planned and designed ()

Hard disk type C.Number of hard disks

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

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

Before deploying and implementing storage devices, you need to plan and design storage solutions.Which of the following options are in planning and designAction to be performed when ()

Storage network segment planning

Storage system upgrade planning

Confirm whether the computer room provides AC or DC power

Confirmation of compatibility of operating system and storage

Storage network segment planning

Storage system upgrade planning

Confirm whether the computer room provides AC or DC power

Confirmation of compatibility of operating system and storage

A TV station uses a Huawei hybrid flash storage device with FC networking to store videos. When I use it recently, it occasionally appears The video screen freezes. Engineer A will troubleshoot the fault after arriving at the site. Which of the following is the correct troubleshooting method ()

Check if there is a RAID group degradation alarm

First check whether the client status is normal, whether the resource is tight and cause the freeze

Check the storage device failure alarm indicator

Check the open status of the client firewall port

Check if there is a RAID group degradation alarm

First check whether the client status is normal, whether the resource is tight and cause the freeze

Check the storage device failure alarm indicator

Single choice Which of the following is not a feature of the Huawei WushanFS file systemA Performance and capacity can be expanded separately

Fully symmetrical distributed architecture,

Metadata nodes Metadata is evenly distributed, eliminating the performance bottleneck of metadata nodes

Support 40PB single file system

The quota type used by a user is capacity quota, and the single-selection of quota side is mandatory quot a. The recommended threshold for this user's capacity is The value is 3GB, the soft threshold is 4GB, the hardware threshold is 6GB, and the grace period is 10 days. Which of the following options is incorrectly described of?

When the user uses the storage space to reach 3GB, the system will not report an alarm, and the user can continue to write

When the user's used storage space reaches 5GB, and the storage capacity has exceeded 4GB for 11 days, the user will write restricted data C. User When the used storage space reaches 4GB, the system will report an alarm, and data writing will not be restricted within the grace period

When the user's used storage space reaches 6GB, the system will prohibit data writing

Which one of the following descriptions of WushanSQL is wrong?

Each node in Wushan SQL shares system resources such as CPU, memory, and storage with each other

In Wushan SQL, business data is scattered on multiple physical nodes, and data analysis tasks are pushed to the node where the data is located for execution

Wushan SQL needs to be coordinated through the control module to complete large-scale data processing

All business data in Wushan SQL are redundantly stored in different storage nodes in duplicate

Which one of the following descriptions about Oceanstor 9000's global cache is incorrect?

Data and its verification data will be cached in the global cache

The memory space on all storage servers logically forms a unified memory resource pool

The data cached on any storage server can be accessed when any subsequent server receives a request to access the data.Hit in global cache

All user data will only be cached in the entire cluster system

Data and its verification data will be cached in the global cache

The following statements about N8500CIFS sharing are correct: Multiple choice (multiple choice) A.If you don't need to distinguish between users who restrict access to the shared directory, you can choose normal sharing

If you do not need to distinguish between users who restrict access to the shared directory, you can choose homeedir share

In normal mode, the client can only access the share through a VIP

Compared with the normal mode, the cluster mode has higher data reliability, but lower performance

When a user uses Systemreporter to analyze his production equipment and selects Oceanstor 9000, he finds some nodes in a certain partition The CPU utilization rate exceeds 80%, but the average CPU utilization rate is about 50%. In addition, it is found that the read and write bandwidth of a node has always been kept at a constant level.More than 80% of the performance specifications, while other nodes are below 60%. In this scenario, which load balancing strategy is recommended?

Comprehensive negative answer by node

In the era of big data, various industries will encounter challenges in the process of data processing.What challenges will the public security criminal investigation industry encounter? (multiple choices)

The number of videos is large and the manual operation is time-consuming.

Poor real-time analysis ability, which affects the speed of solving crimes

The image format is not uniform and the query efficiency is low

Data fragmentation, lack of effective data sharing

The number of videos is large and the manual operation is time-consuming.

Poor real-time analysis ability, which affects the speed of solving crimes

The image format is not uniform and the query efficiency is low

Data fragmentation, lack of effective data sharing

Which of the following types of nodes provided by Huawei Oceanstor 9000 include? (Multiple choices)

Data storage node D.Data processing node Answer

The first description of the following commands for network detection on the switch side: The display Inter command can be used to view interface statistics.Check whether the switch records packet loss on the interface. The second description: display logbuf, if discarding, pay attention to the back-end networking Whether there is a loop.

The first one is correct, the second one is wrong

The first one is wrong, the second one is correct

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