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The three elements of the CAP principle of a distributed database system are: Consistency, Availability, and Partition Capacity.

Tolerance Partition tolerance. Regarding the statement of the three elements of CAP followed by the database, which of the following descriptions are correct? ()

A.
In a distributed system, these three elements can only achieve two at most at the same time, and it is impossible to take care of all three.
A.
In a distributed system, these three elements can only achieve two at most at the same time, and it is impossible to take care of all three.
Answers
B.
For distributed data systems, partition tolerance is a basic requirement
B.
For distributed data systems, partition tolerance is a basic requirement
Answers
C.
For most web application databases, they follow the CPA principle, and consistency is usually sacrificed in exchange for high availability in the design.
C.
For most web application databases, they follow the CPA principle, and consistency is usually sacrificed in exchange for high availability in the design.
Answers
D.
For Traditional relational database partition tolerance is a basic requirement
D.
For Traditional relational database partition tolerance is a basic requirement
Answers
Suggested answer: A, B, C

Which of the following service interfaces does the Huawei N8000 clustered NAS system provide?

A.
GE
A.
GE
Answers
B.
10GE
B.
10GE
Answers
C.
FC
C.
FC
Answers
D.
SAS
D.
SAS
Answers
Suggested answer: A, B

Which of the following storage units does the Huawei N8000 cluster NAS system use?

A.
S2200T
A.
S2200T
Answers
B.
S2600T
B.
S2600T
Answers
C.
S550T
C.
S550T
Answers
D.
S6800T
D.
S6800T
Answers
Suggested answer: B, C, D

In an OceanStor 9000 system, the total number of nodes is 10, and the data protection levels that can be configured for it can be:

A.
RAID1
A.
RAID1
Answers
B.
6+3
B.
6+3
Answers
C.
6+4
C.
6+4
Answers
D.
6+5
D.
6+5
Answers
Suggested answer: B, C

The following descriptions of the software features of the QceanStor 9000 system are correct:

A.
file system supports a maximum of 40PB.
A.
file system supports a maximum of 40PB.
Answers
B.
Data self-healing, the maximum recovery speed is up to 1TB/hour.
B.
Data self-healing, the maximum recovery speed is up to 1TB/hour.
Answers
C.
Each node has exclusive use of this node's cache.
C.
Each node has exclusive use of this node's cache.
Answers
D.
supports thin provisioning and non-thin provisioning.
D.
supports thin provisioning and non-thin provisioning.
Answers
Suggested answer: A, B

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

A.
True
A.
True
Answers
B.
mistake
B.
mistake
Answers
Suggested answer: A

When maintaining the N8500 clustered NAS, I cannot log in to the N8500 clustered NAS system with the master account. It is possible The reasons are: ()

A.
console IP conflicts with other IPs in the network.The network port where the
A.
console IP conflicts with other IPs in the network.The network port where the
Answers
B.
console IP is located is not connected to the network cable or is in the showdown state
B.
console IP is located is not connected to the network cable or is in the showdown state
Answers
C.
User name and password are modified
C.
User name and password are modified
Answers
D.
There is a heartbeat link failure
D.
There is a heartbeat link failure
Answers
Suggested answer: D

In N8500 V200NO01, which of the following commands can be used to check whether the status of the file system is online? ()

A.
storage s list
A.
storage s list
Answers
B.
storage fs online
B.
storage fs online
Answers
C.
storage fs status
C.
storage fs status
Answers
D.
storage fs status show
D.
storage fs status show
Answers
Suggested answer: A

When using Huawei OceanStor Toolkit V100R001 to perform the inspection operation, which one of the following is not included in the inspection wizard? ()

A.
Select equipment
A.
Select equipment
Answers
B.
Select check item
B.
Select check item
Answers
C.
Set inspection strategy
C.
Set inspection strategy
Answers
D.
Export inspection strategy
D.
Export inspection strategy
Answers
Suggested answer: D

In a multi-user multimedia on-demand service application, users use different code streams. This application is doing background N8500 cluster IAS storage When planning storage system LUNs, the prefetch strategies that should be selected are:,

A.
No prefetch
A.
No prefetch
Answers
B.
fixed prefetch
B.
fixed prefetch
Answers
C.
smart prefetch
C.
smart prefetch
Answers
D.
Variable prefetch
D.
Variable prefetch
Answers
Suggested answer: D
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