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After a CloudFabric data center network is changed, you can use which of the following functions of iMaster NCE-FabricInsight can be used to perform ARP on the device before and after the change ? Item comparison analysis

A.

Intelligence at the edge

B.

Data plane intent verification

C.

Network health

D.

Device snapshot comparison

Which of the following descriptions of lossless network prioritization design for multivariate computing is wrong?

A.

Huawei data center switches support the 8021p priority-based PFC function

B.

Huawei data center switches support the PFC function based on DSCP priority

C.

You need to plan a separate priority queue for RoCE traffic and enable the PFC feature

D.

In a VXLAN lossless network, switching devices can directly schedule traffic based on the priority of the IP header in the inner layer of VXLAN

In a data center network, which of the following technologies can be used to achieve sub-second data collection?

A.

SNMP

B.

Telemetry

C.

NETCONF

D.

RESTCONF

When the source VM and the destination VM are connected to the same Leaf switch, the EPG packet information is easy to obtain if micro-segmentation is deployed. However, in the cross-leaf scenario, if the source VM and the destination VM are not connected to the same leaf switch, the packet information needs to be passed in the packet Which of the following scenarios was used?

A.

Carry the source EPG group ID in the reserved field in the VXLAN packet header

B.

In the 802. 1Q header carries the source EPG group ID

C.

Carry the source EPG group ID in the G flag in the header of the VXLAN packet

D.

Carry the source EPG group ID in the VNI field in the VXLAN packet header

Which of the following descriptions of the OpenStack business model is wrong?

A.

Multiple sets of independent AZs can be set up in a DC, and a DC can also be planned as an AZ

B.

A router can only associate one vFW and vice versa

C.

A Project is a unit of resources, and a Project can be deployed within one or more PoDs, and a PoD can host multiple sets of resources

D.

A Project can contain multiple Routers

Write a Python script to construct a NETCONF message using the ncclient library and configure the system time of the device by calling the API in which of the following options?

A.

Intent API

B.

Web Services API

C.

Atomic APIs

D.

Business APIs

Which of the following descriptions of NAT64 technology is wrong?

A.

Static NAT64 requires static configuration of IPv6 and IPv4 address mapping, which does not require refresh or aging

B.

The well-known NAT64 prefix 64: FF9B::/96 already exists by default and does not need to be configured

C.

The custom NAT64 prefix can be of any length, which can be 32, 36, 40, 44, etc

D.

The NAT64 device determines whether the packet performs NAT64 translation based on the IPv6 prefix of the destination address of the IPv6 data packet

Which of the following is a hypervisor among the basic concepts of computing virtualization technology?

A.

Hypervisor

B.

Guest OS

C.

Guest Machine

D.

Host OS

Centralized storage generally provides data storage by the storage array, which of the following components does the storage array contain?

A.

Power module

B.

controller

C.

Hard disk enclosure

D.

Interface modules

Which of the following server components is used as a temporary place to store program instructions, data, and intermediate results during computation?

A.

memory

B.

hard disk

C.

flash memory

D.

CPU