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
Which of the following options is not the discarding strategy of the cache queue?
- A . Tail discard
- B . WRR
- C . RED
- D . WRED
In the intra-domain MPLS VPN network, when data packets enter the public network and are forwarded, they will be encapsulated with two layers of MPLS labels.
Which of the following descriptions of two-layer labels are wrong? (Multiple choice)
- A . The outer label of MPLS VPN is assigned by LDP protocol or statically, and the inner label is assigned by the opposite end’s MP-BGP neighbor.
- B . By default, the outer label is popped before the packet is forwarded to the last hop device.
- C . The outer label is used to correctly send the data packet to the corresponding VPN on the PE device.
- D . The outer label of MPLS VPN is called the private network label, and the inner label is called the public network label.
As shown in the figure, R1 and R4 establish a GRE tunnel to transmit data sent from PC1 to PC2. The TTL of the packets sent from the GE0/0/1 interface of R1 is 126, and the TTL of the packets sent from the GE0/0/3 interface of R3 is 126. Which of the following is the TTL carried when sending?
- A . 124
- B . 127
- C . 125
- D . 126
The figure shows an enterprise ’s wide-area bearer network. Please plan appropriate Metric values for the four links in the figure.
The path of the SR-MPLSTE tunnel can be calculated by the controller or the tunnel head node.
- A . True
- B . False
NETCONF content layer is device configuration data. Regarding the following description of NETCONF configuration, which items are correct? (Multiple choice)
- A . This configuration is to enable the l3 function of the GE1/0/2 port.
- B . This configuration contains the operation attribute, and the specific operation is merge.
- C . This configuration uses the NETCONF <edit-config> operation to load the configuration data into the running database.
- D . This configuration is an incomplete NEICONF configuration and lacks the configuration of the INETCONF operation layer and message layer.
The engineer wants to collect the Telemetry sampling data of the device through gRPC communication, and defines the serve function in the Python script, as detailed below. Which of the following descriptions is wrong?
- A . This function defines the opening of the gRPC listening service
- B . Server is a gRPC server object, allowing a maximum of 10 threads
- C . This code contains exception catching and infinite loop monitoring functions
- D . The IP address of the device is 192.168.56.1, and the gRPC communication port number is 20000.
When establishing a VXLAN tunnel between VTEPs, it is generally recommended to use the loopback IP address of the device as the VIEPIP of the VXLAN tunnel instead of using the physical interface IP address.
- A . True
- B . False
Telemetry data subscription defines the interactive relationship between the data sender and the data acquirer. Telemetry subscription methods are divided into two types: among them () subscription method is mostly used for short-term monitoring.
There are two subscription methods for Huawei Telemetry: static subscription and dynamic subscription.
Static subscription refers to the device acting as the client and the collector acting as the server. Initiate a connection from the device to the collector for data collection and submission. Commonly used for long-term inspections.
Dynamic subscription refers to the connection initiated by the device as the server and the collector as the client to the device. Data collection and submission are carried out by the device. Mostly used for short-term monitoring.
According to different bearer technologies, the bearer modes of traditional wide-area bearer networks can be divided into MPLS bearer modes and () bearer modes.