Huawei HCIE-Datacom V1.0 : H12-891_V1.0-ENU

H12-891_V1.0-ENU real exams

Exam Code: H12-891_V1.0-ENU

Exam Name: HCIE-Datacom V1.0

Updated: May 30, 2026

Q & A: 611 Questions and Answers

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Huawei HCIE-Datacom V1.0 Sample Questions:

1. Regarding the MPLS basic forwarding process, the following description is incorrect? Radio

A) When an IP message enters the MPLS domain, the MPLS boundary device inserts a new label between the layer 2 header and the IP header.
B) By default, the PHP-enabled Erass node assigns a label value of 3 to the inverted second-hop node.
C) When the P message enters the MPLS domain, check whether the Tunel lD value corresponding to the destination IP address is Ox0O If the Tunel IlD value is Ox0. Then enter the MPLS forwarding process.
D) The transport node device replaces the existing top-of-stack label (outermost label) with the label assigned by the next hop device.


2. The Next Header field information exists only in the header of an IPv6 message and is used to indicate whether an extended header exists for IPv6

A) True
B) False


3. The following statement about EVPN Type5 routing is wrong? (Single choice questions).

A) Type5 routing carries both Layer 2 VWI and Layer 3 VNI
B) The IP Prefix field can carry both host and network segment addresses.
C) Type5 is an IP prefix route.
D) Type5 routes carry Layer 3 VNI.


4. The following statement about IPSG technology is correct (single choice).

A) On Huawei routers, ipSG functions can be configured in Vlanif.
B) The ip source checkuser-bind check-item command is used to configure VLAN- or interface-based IP packet checks, which take effect for both dynamic and static table entries.
C) The IPSG can perform binding table match checks on IP packets entering and leaving the interface.
D) If an interface is configured as the OKCP Scooing Tust interface, the interface can normally receive DHCP ACK and DHCPNAK responded to by the OHHNP server and DHCPOffer packets, other untrusted ports cannot receive these packets properly.


5. As shown in the figure, three switches S1, SW, and SN3, where SWI is the root bridge, and link congestion occurs between SI and SW2, SWD cannot receive the configuration BPDU sent by the root bridge, which spanning tree protection mechanism does the administrator need to configure to prevent the problem caused by link congestion? (Single choice questions).

A) root protection
B) PreventS TC-BPDU attacks
C) Loop Protection
D) BPDU Protection


Solutions:

Question # 1
Answer: C
Question # 2
Answer: B
Question # 3
Answer: A
Question # 4
Answer: D
Question # 5
Answer: C

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