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In order to ensure the security of data in the actual production environment, data backup technology is used; To ensure the continuity of the service and the availability of the system, the disaster recovery technology is used. The following describes the different disaster recovery and backup schemes.
Which statement is correct? ( one)

• A. Local high availability disaster recovery can cope with data center failures such as power failures and building fires.
• B. Disaster recovery in different places can deal with regional disasters such as turmoil and natural disasters.
• C. Remote disaster recovery can deal with logical errors such as operational errors, upgrade failures, and software defects.
• D. The data backup system can deal with equipment failures such as disk failure, application interruption, and data damage.

If FusionCompute is deployed in the three-member separation mode, the deployment of FusionAccess must also adopt the three-member separation mode.

• A. True
• B. False

After the cloud disaster recovery service is upgraded, which of the following descriptions of the impact on the current system is correct?

• A. Fusion Sphere OpenStack: During the completion of the upgrade, the host OS will automatically restart, during the restart Some services cannot access the subnormal phenomenon
• B. BCManager eReplication: Only supports online upgrade, and does not need to be restarted during the upgrade process Operating system, after the upgrade is completed, the protection group or recovery plan can be executed after the automatic refresh of resources under the site is completed.
• C. ManageOne SC. After the upgrade, the backup console cannot be logged in, and the cloud backup service is interrupted
• D. eBackup: Back up by means of always full backup

In the FusionCloud private cloud solution, the following is about the cloud server disaster recovery service CSDR deployment And the description of the switching scheme, which one is wrong? ( one)

• A. When a disaster occurs in a data center, the disaster recovery administrator logs in to BCManager eReplication Manual failover of protection instances and manual startup of placeholder virtual machines
• B. CSDR is a cross-region fire tolerance. When it needs to be used, at least two regions need to be planned. According to the two The distance and delay of the Region can determine whether to use synchronous replication or asynchronous replication
• C. The tenant creates a protection instance through the CSDR service, and it is recommended to protect all VMs in key applications to Reduce the complexity of tenant business deployment and recovery
• D. Tenants can create their production business in any Region, and create placeholders in another Region Virtual machine, occupying the private 1P address of the virtual machine is recommended to be consistent with the production virtual machine to reduce in-app virtualisation Interaction between machines

In FusionCloud, which of the following descriptions about the virtual firewall VFW is wrong? (one)

• A. By setting up a virtual firewall, adding an additional security layer to the VPC can be more flexible and hierarchical Safety management.
• B. Security group is a virtual machine port-level security service of VPC, supports black and white lists, and can be used to control Control traffic to and from one or more virtual machines
• C. is a subnet-level and VPC-level security service of the VPC
• D. Support black and white list, which can be used to control the traffic in and out of one or more subnets