A company needs to make a backup strategy. The company has a small amount of backup data, and hopes to back up in a short time and save storage space to the maximum. What type of backup do you recommend?

• A.Full backup
• B.cumulative incremental backup
• C.differential incremental backup

Comment: *

Name: *

Email: *

Verification: *

The advantages and disadvantages of the disaster recovery technology of the host layer, network layer and array layer, the following statement is correct? (Multiple choice)

• A.For host layer disaster recovery, host layer replication will occupy certain host resources, which will affect the application system
• B.The initial construction cost of network layer disaster recovery is relatively low, and many manufacturers can provide solutions
• C.Array layer disaster recovery, the arrays at both ends must be products of the same manufacturer, unable to solve the heterogeneous problem
• D.Host layer disaster recovery is implemented on the host side, without considering the compatibility between the underlying devices

Correct Answer: A,D

Explanation
Resolution:

Comment: *

Name: *

Email: *

Verification: *

SAN network-based data replication technology is a storage area network between front-end application servers and back-end storage systems Network (SAN), adding a layer of intelligent switches, the front end is connected to the server host, and the back end is connected to the storage device.

• A.TRUE
• B.FALSE

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements about Disaster Recovery is NOT true?

• A.After a disaster access to the data, on the remote site, can be immediate.
• B.Applications to work with the recovered data is in place.
• C.Some data loss must be accepted.
• D.There are still traditional backup strategies in place.

Comment: *

Name: *

Email: *

Verification: *

The following description is correct: (multiple choice)

• A.In the OceanStor V3 series of new-generation storage products, the back-end loops of the same SAS interface card can be mixed and connected Ordinary disk enclosure and high-density disk enclosure
• B.When the control frame of OCeanStor 5300 V3 is expanded from 2 to 4 controls, it can be directly connected or Networking with switches
• C.OceanStor V3 series products support 8 controllers, and the switching plane between the controllers is IP-based Scale-out interconnection
• D.OceanStor V3 mid-range storage arrays use IP switches for interconnection, which has cost advantages.
  PCIe switches are dedicated
  Switching, the cost is relatively high, mainly used in high-end storage

Comment: *

Name: *

Email: *

Verification: *