H12-841_V1.5 試験問題を無料オンラインアクセス

In troubleshooting MPLS VPN networks, if you need to "view detailed information about BGP VPNv4 neighbors on the PE device (such as neighbor status and establishment time)," which of the following commands should you use?

• A.display ip routing-table vpn -instance
• B.display mpls lsp
• C.display bgp vpnv4 all routes
• D.display bgp vpnv4 peer [neighbor IP] verbose

In a wide area network (WAN) IPv6 transition scenario, if "an enterprise needs to migrate its internal IPv4 services to IPv6, but some devices do not yet support IPv6", which of the following technologies should be used?

• A.Directly shut down IPv4 services and force the use of IPv6.
• B.IPv6 over IPv4 tunnel (supports communication between IPv6 devices only)
• C.IPv4/IPv6 dual-stack technology (devices that support IPv6 use IPv6, while those that do not continue to use IPv4).
• D.NAT64 (Only supports IPv6 terminals accessing IPv4 services)

In an MPLS VPN network, when a PE device forwards VPN packets to a P device, if the PE device does not encapsulate a public network label, which of the following problems will occur?

• A.The CE device cannot receive data packets (VPN label missing).
• B.The PE device automatically re-encapsulates the public network label before forwarding.
• C.Data packets are forwarded normally to the target PE device without affecting services.
• D.The P device cannot identify the packet forwarding path and discards the packet.

In Huawei's SD-WAN solution, for the scenario of "branch multi-link (MPLS + Internet + 5G) hybrid access", which of the following technologies can "automatically select the optimal link for different services, such as VoIP using 5G and file transfer using the Internet"?

• A.All services use MPLS links, while other links remain idle.
• B.Manually configure a fixed link for each service, without automatic adjustment.
• C.Randomly assign links to services without any strategy optimization.
• D.Intelligent routing based on service SLA (matching links according to latency and bandwidth requirements)

In the deployment of the OSPF protocol in a wide area network, what is the core function of the
"Stub area"?

• A.Achieve indirect connection between non-backbone regions and Area 0.
• B.Prohibit the publication of Type 5 LSAs within the area, only allow Type 3 LSAs (inter-area summary routes), and reduce the number of route entries.
• C.Disable OSPF authentication and simplify the configuration process.
• D.Allow the advertising of Type 5 LSAs (AS external routes) within the area.