Huawei H12-891_V1.0-ENU Übungsprüfungen
Zuletzt aktualisiert am 11.05.2025- Prüfungscode: H12-891_V1.0-ENU
- Prüfungsname: HCIE-Datacom V1.0
- Zertifizierungsanbieter: Huawei
- Zuletzt aktualisiert am: 11.05.2025
As shown in the figure, R1, R2, R3, and R4 all belong to OSPF area 0, and the cost value of the link is listed in the figure.
The Loopback0 interfaces of R1, R2, R3, and R4 have been advertised into the OSPF protocol. R1, R2, R3 and R4 use Loopback0 as the connection interface to establish an IBGP peer relationship. R1, R2 and R3 are clients of R4. R4’s directly connected network segment 172.20.1.4/32 has been advertised into the BGP protocol.
Based on the above information, regarding the traffic direction of R1 accessing 172.20.1.4/32, which of the following descriptions are correct? (Multiple choice)
- A . The preferred path is R1-R3-R4
- B . During the two processes of R3 powering off and starting up, there will be packet loss.
- C . The preferred path is R1-R2-R4
- D . If R3 is configured with Stub router on-startup, packets will be lost when R3 is powered off; there will be no packet loss during R3 startup.
Which of the following descriptions of the authentication protocols used in the Portal authentication process are correct? (Multiple choice)
- A . When the Portal protocol is used as the authentication protocol, the Porta1 server and access device only need to support the Portal protocol and do not need to support the HTTP/HTTPs protocol.
- B . When using HTTP/HTTPS protocol as the authentication protocol, all devices involved in the authentication process do not need to support the Portal protocol.
- C . When the Portal protocol is used as the authentication protocol, the Porta1 server needs to exchange authentication information with the access device, and then the access device sends this information to the authentication server for identity authentication.
- D . When using HTTP/HTTPs protocol as the authentication protocol, the client needs to send authentication information to the access device, and then the access device sends this information to the authentication server for identity authentication.
Which of the following descriptions of MPLS label space is wrong?
- A . When the penultimate hop LSR performs label exchange, if it is found that the exchanged label value is 3, the label will be popped up by default and the packet will be sent to the last hop.
- B . 16~1023 is the label space shared by static LSP and static CR-LSP
- C . If the outgoing label value is 0, the router will directly discard the packet.
- D . Above 1024 is the label space shared by dynamic signaling protocols such as LDP, RSVP-TE, MP-BGP and so on.
BGP4+ carries the next hop address of IPv6 routing through the Next_Hop attribute in the Update message.
- A . True
- B . False
In the small and medium-sized cloud management campus network scenario based on Huawei Cloud Campus Network Solution, which of the following devices are supported for going online through the registration query center? (Multiple choice)
- A . AP
- B . AR
- C . SW
- D . FW
Network access authentication can be deployed at different levels of the network according to actual needs. Compared with deploying authentication at the aggregation layer or core layer of the network, deploying authentication at the access layer is more conducive to achieving fine-grained management of permissions and high network efficiency safety.
- A . True
- B . False
After a wireless user passes Portal authentication, which of the following parameters is not supported for authorization to the user?
- A . free-rule
- B . IP address
- C . ACL
- D . UCL
In the scenario of dynamically establishing a VXLAN tunnel through BGP EVPN, when EVPN Type2 is used to advertise host ARP and host IP routes respectively, which option is wrong in the following description?
- A . Both carry L2 VNI
- B . Both carry host IP information
- C . Both carry L3 VNI
- D . Both carry MAC information
SR MPLS directly uses the forwarding plane of MPLS, so the MPLS function needs to be enabled when deploying SR NIPLS.
When which of the following conditions are met, the interface will automatically enable the MPLS function? (Multiple choice)
- A . Enable Segment Routing in global view
- B . Configure SRGB under the IGP process
- C . Configure the static adjacency label of the corresponding interface in the Segment Routing view.
- D . IGP enables Segment Routing, and IGP is enabled on the interface.
Before user authentication is successful, in order to meet users‘ basic network access needs, such as downloading 802.1x clients, updating virus databases, etc., users are required to obtain some network access rights without authentication.
Which of the following descriptions about certification exemption is wrong?
- A . User authentication-free rules can be defined through ordinary authentication-free rules or through ACL.
- B . Ordinary authentication-free rules are determined by parameters such as IP address, MAC address, interface, and VLAN.
- C . Authentication-free rules defined in any way can specify destination domain names that users can access without authentication.
- D . When using ACL to configure authentication-free rules, the ACL number range used is: 6000~6031