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Which of the following is not included in an open-source OpenStack node?

A.

Control nodes

B.

Compute nodes

C.

Service nodes

D.

Network nodes

When using one of the following network modes, the communication between the Docker machine and the external network needs to be realized through NAT?

A.

None

B.

Host

C.

Bridge

D.

Container

Which of the following options is an OpenStackNeutron component?

A.

Core Plug-in

B.

Service Plug-in

C.

Agent

D.

NeutronServer

Which of the following is NOT a disadvantage of PCIe-based NVMe?

A.

Multi-host sharing is inconvenient

B.

Limited scalability, up to 255 nodes

C.

Direct connection to the CPU is not supported

D.

Can't pull it far

Which of the following data center deployment scenarios is typically used to achieve business continuity and ensure uninterrupted service to users in the event of a failure?

A.

Intra-city active-active

B.

Two places and three centers

C.

Edge DC

D.

Hybrid cloud

Which of the following parameters does OpenStack use to define a virtual machine specification?

A.

Label

B.

Instance

C.

Datasheet

D.

Flavor

When service packets are connected to a VXLAN network through a Layer 2 sub-interface, different flow encapsulation types need to be configured on different Layer 2 sub-interfaces

The same physical interface can access different data packets. Which of the following is NOT a stream encapsulation type that is supported by a Layer 2 sub-interface?

A.

QinQ

B.

Untag

C.

Dotlq

D.

Trunk

In which of the following storage network architectures does the storage array provide file storage to the server?

A.

DAS

B.

IP SAN

C.

NAS

D.

FC SAN

In the Multi-Site scenario of a CloudFabric solution, what are the correct items in the following description of Layer 2 interoperability?

A.

In the mapped VNI mode, the Fabric GW at both ends uses BGP EVPN to negotiate a mapped VNI, and all packets sent to the peer end are routed using the mapped VNI VXLAN packing

B.

In practice, different sites have their own independent VNI space, so VXLAN tunnels inside different sites are likely to use different VNI C. Layer 2 interconnection is supported in two modes: local VNI and mapped VNI

C.

In local VNI mode, the local VNI of the local Fabric GW is used as the outbound VXLAN packet to encapsulate VXLAN packets to the VNI

In which of the following scenarios would a physical hard disk be converted into a block device?

A.

Virtual machines access remote centralized storage devices via NFS

B.

Virtual machines access remote centralized storage devices via iSCSI

C.

The computer uses a local hard disk

D.

Virtual machines access remote centralized storage devices via FC-SCSI