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A bank will launch a business system, which has very high performance and security requirements, and the database uses Oracle data Database and plan to deploy the Oracle database to a storage system, then create a RAID group for the

Oracle database At this time, the optimal RAID strategy should be:

A.
RAID 1
A.
RAID 1
Answers
B.
RAID 5
B.
RAID 5
Answers
C.
RAID 6
C.
RAID 6
Answers
D.
RAID 10
D.
RAID 10
Answers
Suggested answer: D

The SCSI protocol can be used not only for communication between the host and the disk, but also for communication between the host and the physical tape library, optical disc, and so on.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: A

In the Huawei OceanStor storage system, a customer plans to deploy a business system, the database uses Oracle data, the average data block size is 16KB. when using SmartTier features, the following data migration granularity, the most

The advantages are:

A.
512KB
A.
512KB
Answers
B.
4MB
B.
4MB
Answers
C.
32MB
C.
32MB
Answers
D.
64MB
D.
64MB
Answers
Suggested answer: A

Which of the following methods can achieve the optimal RTO?

A.
Disk-disk
A.
Disk-disk
Answers
B.
Disk-disk-tape
B.
Disk-disk-tape
Answers
C.
remote replication
C.
remote replication
Answers
D.
Virtual tape library
D.
Virtual tape library
Answers
Suggested answer: C

In Huawei OceanStor, what unit is Thick LUN applying for space from the storage system?

A.
grain
A.
grain
Answers
B.
chunk
B.
chunk
Answers
C.
stripe
C.
stripe
Answers
D.
extent
D.
extent
Answers
Suggested answer: D

Explanation:

Analysis: Several Extents form a volume, and the volume is externally reflected as the LUN accessed by the host (here LUN is Thick LUN). When processing user read/write requests and data migration, the LUN applies to the storage system Space, free space, and data migration are all performed in units of Extent. For example: when a user creates a LUN, he can refer to The fixed capacity is obtained from a certain storage tier. At this time, the LUN is composed of the specified extent on the certain storage tier. In user After the business starts to run, the storage system will, according to the migration strategy set by the user, for frequently accessed data and less visited Questioned data is migrated between storage tiers (this feature requires the purchase of a SmartTier License). At this time, the data on the LUN It will be distributed to each storage layer of the storage pool in the unit of Extent.

Most of the data generated by the Internet industry is structured data, which accounts for about 80% of the total data.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: B

Explanation:

Analysis: Most of the data generated by the Internet industry is unstructured data.

The following two descriptions about cloud computing, Description 1. A deployment model of cloud computing is to divide a large physical server into multiple small virtual machines; Description 2. A deployment model of cloud computing is to aggregate multiple small physical servers into one mainframe.

A.
description 1 and description 2 are correct
A.
description 1 and description 2 are correct
Answers
B.
Description 1 is correct, description 2 is incorrect
B.
Description 1 is correct, description 2 is incorrect
Answers
C.
Description 1 is wrong, description 2 is correct
C.
Description 1 is wrong, description 2 is correct
Answers
D.
description 1 and description 2 are wrong
D.
description 1 and description 2 are wrong
Answers
Suggested answer: A

Multipath software can only be used in IP-SAN.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: B

Explanation:

Analysis: It is also needed in the dual control of the low-end SAN/NAS converged storage architecture; FC SAN is also required.

Regarding the characteristics of DAS, the following description is correct: (multiple choice)

A.
The number of ports that can be connected to the host is limited
A.
The number of ports that can be connected to the host is limited
Answers
B.
When maintaining internal DAS, the system needs to be powered off
B.
When maintaining internal DAS, the system needs to be powered off
Answers
C.
If the storage space is tight, the DAS can share the remaining space of the DAS with excess storage resources
C.
If the storage space is tight, the DAS can share the remaining space of the DAS with excess storage resources
Answers
D.
When multiple hosts are connected to DAS, they can provide services of different service levels
D.
When multiple hosts are connected to DAS, they can provide services of different service levels
Answers
Suggested answer: A, B

In Huawei OceanStor based on RAID2.0+, when a user creates a file system, the system will automatically create it first Correspond to the LUN, and generate a file system on the LUN.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: B

Explanation:

Resolution: LUN needs to be created manually

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