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Questions # 1:

For a system with high business continuity to find that, the characteristics of RPO and RTO values should be:

A, RPO is higher, RTO is lower

B. RPO is lower, RTO is higher

C, RPO and RTO are lower

D, RPO and RTO are higher

Options:

Expert Solution

Questions # 2:

The advantages of SAN for NAS unified storage do not include:

Options:

Users do not need to plan the storage capacity of SAN and NAS separately

Users can freely allocate storage to meet the needs of the application environment

Users do not need to be concerned about capacity utilization related to data block and file storage support

Users can realize the functions of NAS by buying a set of SAN

Expert Solution

Questions # 3:

In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.

Options:

TRUE

FALSE

Expert Solution

Questions # 4:

In the FC protocol, which of the following layers is responsible for encoding and decoding?

A, FC-0

B, FC-1

C, FC-2

D, FC-3

Options:

Expert Solution

Questions # 5:

In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?

Options:

The storage system can generate a snapshot in seconds

The snapshot LUN cannot be mapped to the host

Complete data copying is unnecessary

data use mapping table lookup

Expert Solution

Questions # 6:

Which of the following descriptions of RAID technology are correct? (Multiple choice)

Options:

Not every RAID technology can improve write performance

In RAID 0, multiple hard drives are accessed simultaneously (parallel access), speeding up data access performance

The current RAID technology only uses the parity mechanism to protect the data

The performance of all RAID levels increases linearly with the increase in the number of member disks

Expert Solution

Questions # 7:

When does data become information?

Options:

When it has been stored in the correct file format

When the data has been stored in digital form

When the enterprise understands the meaning of data and extracts the content needed for decision-making

When the data is verified to be correct

Expert Solution

Questions # 8:

Regarding the traditional model and cloud computing model, high reliability in the data center and cross-data center disaster recovery methods, the following says

What is wrong?

Options:

In the traditional mode, the data center relies on component redundancy to achieve high reliability

In the cloud computing mode, the data center relies on component redundancy to achieve high reliability

In the traditional model, cross-data center disaster recovery is mainly based on copying business data, and the recovery process is complicated and the recovery period is long

In the cloud computing mode, cross-data center disaster recovery is the replication of all data in the business data and operating environment.

Simple recovery process and short recovery period

Expert Solution

Questions # 9:

The NAS engine and the storage unit are interconnected by Ethernet switches.

Options:

TRUE

FALSE

Expert Solution

Questions # 10:

Which mirroring scenarios are mainly used in HyperMirror? (Multiple choices)

Options:

Mirroring of two LUNs in this array

Cooperate with the heterogeneous virtualization function to realize the mirroring of the LUN of the heterogeneous array and the array

Cooperate with the heterogeneous virtualization function to realize the mirroring of two heterogeneous LUNs

The mirrors of the two LUNs of the volume mirror are not under the same home controller

Expert Solution

Questions # 11:

The cloud data center virtualizes storage, computing and network resources, and provides a virtualization platform for users to use.

Options:

TRUE

FALSE

Expert Solution

Questions # 12:

What are the three data centers in the disaster recovery plan that 3DC refers to? (Multiple choices)

Options:

Production center

The same city disaster recovery center

Remote disaster recovery center

Data center

Expert Solution

Questions # 13:

Description 1: The data recovery of the snapshot depends on the source data. If the source data is physically damaged, it cannot be recovered. and

In this case, the clone can still restore the source data.

Description 2: After the source data is damaged, the LUN copy must completely copy the backup data to restore the source data. And clone only

Damaged data needs to be recovered, which greatly reduces the recovery time.

A, description 1 is correct, description 2 is correct

B. Description 1 is right, description 2 is wrong

C, description 1 is wrong, description 2 is right

D. Description 1 is wrong, description 2 is wrong

Options:

Expert Solution

Questions # 14:

Is the following statement correct?

Options:

After using RAID 5 with 6 200G hard drives, the available space is 1200G

NL SAS/SATA hard disks are suitable for data protection using RAID 6, and SAS hard disks are suitable for data protection using RAID 5.

According to protection

C, S2200 V3 can support SSD, SAS, SATA hard drives

OceanStor V3 series products support RAID 0/RAID 1/RAID 5/RAID 10, but not RAID 6

Expert Solution

Questions # 15:

What are the following descriptions of the three iSCSI connection methods?

Options:

The connection mode of the Ethernet card + initiator software does not occupy the host resources at all

The hardware TOE network card + initiator software connection method reduces the pressure on the host resources

The iSCSI HBA card completes the TCP/IP protocol conversion without occupying host resources at all

TOE network card completes the conversion of iSCSI packets to TCP/IP packets

Expert Solution

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