Huawei H12-891_V1.0-ENU Übungsprüfungen
Zuletzt aktualisiert am 09.09.2025- Prüfungscode: H12-891_V1.0-ENU
- Prüfungsname: HCIE-Datacom V1.0
- Zertifizierungsanbieter: Huawei
- Zuletzt aktualisiert am: 09.09.2025
MPLS LDP sends a large number of messages to maintain protocol neighbor relationships and path status.
- A . True
- B . False
ISIS is a link state routing protocol that uses the SPF algorithm for route calculation. A campus has deployed both IPv4 and IPv6 and runs IS-IS to realize network interconnection. As shown in the figure, the IPv4 and IPv6 overhead of this network are the same. R1 and R4 only support Ipv4. By default, in the IPv6 shortest path tree formed by calculation, the next hop device from R2 to R6 is: ()
NETCONF protocol provides a mechanism for managing network devices. It defines a series of operations. Which of the following descriptions of NETCONF operations is wrong?
- A . The <close-session> operation is used to forcefully end other NETCONF sessions and requires administrator privileges.
- B . The <copy-config> operation is used to export the configuration, or completely replace one set of configuration data with another set of configuration data.
- C . The <edit-config> operation is used to modify, create, and delete configuration data
- D . The <get-config> operation is used to query device configuration data
In the scenario of dynamically establishing a VXLAN tunnel through BGP EVPN, when BGP EVPN Type2 routes are used to transmit IRB type routes, which of the following items are included in the information carried? (Multiple choice)
- A . Three-layer VNI
- B . Host IP address
- C . Layer 2 VNI
- D . Host MAC address
The SD-WAN network topology based on Huawei’s SD WAN solution is as shown in the figure: the headquarters has dual HUB sites, and the HUB and RR are co-located. The sum of all sites in different regions is 350, including 220 dual gateway sites and single 130 gateway sites. After calculation, an RR device needs to establish () BGP neighbor relationships.
Which of the following descriptions about IS-IS (IPv6) are correct? (Multiple choice)
- A . By default, IS-IS enables the multi-topology feature
- B . In order to support the processing and calculation of IPv6 routes, IS-IS adds NLPID to 129 TLV.
- C . In order to support the processing and calculation of IPv6 routes, IS-IS has added TLVs 232 and 236.
- D . IS-IS works at the data link layer and only needs to add new ILVs to support IPv6.
In the scenario of large and medium-sized virtualized campus networks, which one of the following descriptions about the security design of the campus network egress is wrong?
- A . Special security devices such as firewalls and intrusion prevention systems can be deployed, as well as routers with security functions.
- B . Security zones need to be divided. The Trust zone is usually used to define the zone where the server that provides external services is located.
- C . Anti-virus and URL filtering can be deployed in the exit area to implement virus detection and URL access control.
- D . Security policies and intrusion prevention can be deployed in the exit area to prevent illegal access and attacks.
When deploying BGP/MPLS IP VPN, when two VPNs have a common site, the common site must not use overlapping address spaces with other sites of the two VPNs.
- A . True
- B . False
When encountering a large-scale network cutover project, it can be divided into multiple relatively independent but related small cutovers.
- A . True
- B . False
B. As a new forwarding technology, IER uses the basic IGP routing protocol and unicast routing forwarding mechanism, so that there is no need to run IGMP between multicast recipients and multicast routers.
- A . True
- B . False