The steps of asynchronous remote replication technology at multiple points in time. Which of the following statements is correct?
(1) A new time slice (T2, P2) is generated in the cache of the primary LUN and the secondary LUN when each replication cycle starts
(2) The data newly written by the host is cached in the time slice T2 of the main LUN Cache, and the response host is completed
(3) The data received by the master and slave LUN will be downloaded to disk respectively
(4) Copy the data of time slice T1 directly to the slave LUN, and write it into the time slice P2 of the slave LUN

• A.(1) (3) (2) (4)
• B.(1) (2) (4) (3)
• C.(2) (1) (4) (3)
• D.(1) (2) (3) (4)

Comment: *

Name: *

Email: *

Verification: *

A device has only one WWNN number, but it can have multiple WWPN numbers.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

The Internet of Things (IoT) is an important part of a new generation of information technology and an important development stage in the "informatization" era.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *

FTP is a very secure protocol, there is no security risk.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *

During the daily inspection, an operation and maintenance engineer found that the storage device was alarming and required quick maintenance. Which of the following operations is wrong?

• A.Check system performance and handle related abnormalities
• B.Check the status of the indicator light and deal with related abnormalities
• C.Check business status and handle related abnormalities
• D.Restart the storage device

Comment: *

Name: *

Email: *

Verification: *