Which CPU virtualization will become the mainstream development trend in the future?
A . Full-virtualization
B . Para-virtualization
C . Hosted virtualization
D . Hardware-assisted virtualization
Answer: D
In a C/S service model among a VM cluster spanning multiple data centers, which method can not support cross-DC traffic switching upon a VM migration when external users access a data center?
In a C/S service model among a VM cluster spanning multiple data centers, which method can not support cross-DC traffic switching upon a VM migration when external users access a data center?
A . Inject the host route of the VM using CE12800’s RHI feature (EVN all-active gateway features)
B . Inject the host route of the VM using the SLB’s RHI feature.
C . Use MPLS tunneling technology to ensure optimal access paths.
D . Change the service model to B/S and use a GSLB to ensure optimal access paths
Answer: A
in a HyperMetro active-active data center solution, which statement is true about the active-active deployment of the B/S application?
in a HyperMetro active-active data center solution, which statement is true about the active-active deployment of the B/S application?
A . A unified SLB resource pool is established for the primary and secondary sites, and all web servers are added to this pool.
B . Web servers at the primary and secondary sites compose a web cluster across sites.
C . Application servers compose a cluster across sites.
D . Databases do not need to compose a cluster across sites.
Answer: A
The traffic diversion function is required only when an AntiDDoS device is deployed on out-of-path mode.
The traffic diversion function is required only when an AntiDDoS device is deployed on out-of-path mode.
A . True
B . False
Answer: B
Huawei SD-DC2 employs the eBackup virtualization backup solution. When a backup agent fails, services are switched to other backup agents.
Huawei SD-DC2 employs the eBackup virtualization backup solution. When a backup agent fails, services are switched to other backup agents.
A . True
B . False
Answer: A
OS virtualization architecture, which operates on physical hardware with low loss and high efficiency, will become the mainstream development trend in the future.
OS virtualization architecture, which operates on physical hardware with low loss and high efficiency, will become the mainstream development trend in the future.
A . True
B . False
Answer: A
In the FusionSphere OpenStack scenario, “physical network” defines mappings between virtual networks and host physical network ports and the applied networks planes, and a VM can derectly use the physical network.
In the FusionSphere OpenStack scenario, “physical network” defines mappings between virtual networks and host physical network ports and the applied networks planes, and a VM can derectly use the physical network.
A . True
B . False
Answer: B
In Huawei UltraVR disaster recovery solution, the following is recommended: At the production and disaster recovery sites, use LUNs that are not configured with remote replication to store VMs that do not need disaster recovery, and use LUNs configured with remote replication to store VMs that needs disaster recovery.
In Huawei UltraVR disaster recovery solution, the following is recommended: At the production and disaster recovery sites, use LUNs that are not configured with remote replication to store VMs that do not need disaster recovery, and use LUNs configured with remote replication to store VMs that needs disaster recovery.
A . True
B . False
Answer: B
As shown in the figure, the two core switches set up a VRRP group and run BFD for VRRP. The BFD feature can shorten the VRRP master/backup switchover time to 50 ms and monitor multiple VRRP group.
As shown in the figure, the two core switches set up a VRRP group and run BFD for VRRP. The BFD feature can shorten the VRRP master/backup switchover time to 50 ms and monitor multiple VRRP group.
A . True
B . False
Answer: A
In Huawei SD-DC2 solution, physical data centers are deployed in a distributed manner and there is a federation relationship between data centers. Therefore, the domain concept is introduced. One domain can contain one or multiple VDCs that belong to one or more enterprises.
In Huawei SD-DC2 solution, physical data centers are deployed in a distributed manner and there is a federation relationship between data centers. Therefore, the domain concept is introduced. One domain can contain one or multiple VDCs that belong to one or more enterprises.
A . True
B . False
Answer: B