H12-891_V1.0 Exam Dumps : HCIE-Datacom V1.0

Comprehensive and Detailed In-Depth Explanation:

The IP prefix list configuration:

ip ip-prefix TEST permit 10.0.0.0 24 less-equal 30

10.0.0.0/24: Matches because it falls within the10.0.0.0/24prefix with thesame prefix length (24).

10.0.1.0/24: Matches because it also falls within the/24network range.

10.0.2.0/24: Matches for the same reason as the above.

10.0.0.1/30: Matches because it falls within the/24 prefixand itssubnet length (30)is within theless-equal 30range.

The prefix list permits any route that falls within the10.0.0.0/24network with asubnet mask ranging from /24 to /30. Therefore,all given routes are matched.

Huawei Datacom Reference:

“In RESTful APIs, GET is used for reading data, POST for creation, PUT/PATCH for updates, and DELETE for deletion. PATCH allows partial updates while PUT replaces the entire resource.”

(Source: HCIE-Datacom V1.0 – OPS & NETCONF API Chapter)

In BGP EVPN configuration forVXLAN-based networks, Huawei uses the command:

[bgp] advertise l2vpn evpn

This command enables the BGP process toadvertise routes from a VPN instance into the EVPN (L2VPN) address family, which is used for VXLAN control-plane operations like MAC/IP advertisement.

Option A (advertise irbvfi)— invalid command.

Option B (advertise vpnv4)— used for MPLS VPNs, not EVPN.

Option C (advertise irb)— not a recognized Huawei command.

Option Dis the correct and officially used command.

Correct answer: D. advertise l2vpn evpn